Building Utilities

BUILDING UTILITIESQUESTIONAIREQ.1) A kind of return bend of small-sized faucet, one end of which is about one foot long and the other end is about three inches. It is commonly used as a faucet for pantry sink and drinking fountain. Also the lead connection between the service pipe and the water main. Also a p-trap.

A. Spigot

B. Faucet

C. Tailpiece (your answer)

D. gooseneck (correct answer)

Correct

Q.2) A fitting or device designed and constructed to provide, when properly vented, a liquid seal which prevents backflow and passage of foul air and gases without materially affecting the flow of sewage or wastewater through it.

A. Trap (your answer)

B. Fitting

C. Pipe

D. valve

Correct

Q.3) Copper as a conductor has the property/properties of being ____.

A. Ductile

B. Malleable

C. A only

D. A and b (your answer)

Correct

Q.4) Unit of capacitance is _____.

A. Henry

B. Coulomb

C. Farad (your answer)

D. weber

Correct

Q.5) Pyramid is a type of commercially produced acoustical tile. Which of the following is not a characteristic of this material?

A. Made of open celled polyurethane acoustical foam

B. Available in 2,3, & 4inch thickness

C. Tetrahedral in shape (your answer)

D. Ideal for audio room application

Wrong

Q.6) A factory assembly of two or more insulated conductors having an outer sheath of moisture-resistant, flame retardant, non metallic material.

A. Service entrance cable (type SE and USE)

B. Shielded non metallic sheathed cable (type SNM )

C. Non metallic sheathed cable (type NM and NMC) (correct answer)

D. Mineral insulated metal sheathed cable (type MI) (your answer)

Correct

Q.7) A watertight receptacle which the discharge of sanitary plumbing system or part thereof, designed and constructed to retain solids, digest organic matter through a period of detention and to allow the liquids to discharge into the soil outside of the tank through a system of open jointed subsurface piping or seepage pit.

A. Seepage pit

B. Septic tank (your answer)

C. Privy vault

D. cesspool

Correct

Q.8) A continuous belt (chain) attached to the handrail and directly connected to the steps is known as _____.

A. Endless belt (your answer)

B. Balustrade assembly

C. Sprocket assembly

D. handrail

Correct

Q.9) These consist of loose fibers or granules and is made from cellulose, fiberglass, rock wool, cotton or other materials. These materials come in bags and are usually blown into cavities using special equipment. What are these?

A. Acoustical foams

B. Foam panels

C. Loose fill insulations (your answer)

D. Fireflexes

Correct

Q.10) A pipe which conveys potable water from the building supply pipe to the plumbing fixtures and other outlets.

A. Water service pipe

B. Water main

C. Water distributing pipe (your answer)

D. Building and water supply pipe

Correct

Q.11) What is the minimum distance between the handrails of escalators?

A. 600mm

B. 558mm (your answer)

C. 658mm

D. 650mm

Wrong

Q.12) A vertical pipe which conveys only wastewater or liquid waste free of fecal matter.

A. Waste pipe

B. Soil pipe (your answer)

C. Soil stack

D. Waste stack (correct answer)

Correct

Q.13) The over-all covering of underground feeder and branch circuit cables shall be ____.

A. Fungus resistant

B. Corrosion resistant

C. Both a and b (your answer)

D. None of these

Correct

Q.14) The installation of parts of the plumbing system which can be completed prior to installation of fixtures or finishing. This includes drainage, water supply and vent piping and necessary fixture supports.

A. a. Roughing-in (your answer)

B. b. Mock-up installation

C. c. Pre-installation

D. d. setting

Correct

Q.15) Any pipe which conveys the discharge of water closet, urinal or fixtures having similar function, with or without the discharges from other fixtures to the building drain or building sewer.

A. a. Soil pipe (your answer)

B. b. Waste pipe

C. c. Building drain

D. d. Building sewer

Correct

Q.16) A common measure of the probable discharge into the drainage system by various types of plumbing fixtures on the basis of one unit of this being equal to a discarge rate of 7.5 gallons per minute or one cubic foot of water per minute.

A. Flow rate

B. Drainage fixture unit (your answer)

C. Flow pressure

D. Drainage flow

Correct

Q.17) A valve in which the flow of liquid is controlled by a rotating drilled ball that fits tightly against a resilient (flexible) seat in the valve body.

A. Angle valve

B. Check valve

C. Float valve

D. Ball valve (your answer)

Wrong

Q.18) A vertical length of soil or waste stack at least 8 feet in height (a storey high), within which the horizontal branches from one storey or floor of the building or structure are connected to the stack.

A. Fixture branch

B. Branch drain

C. Branch pipe (your answer)

D. Branch interval (correct answer)

Correct

Q.19) The velocity of sound is affected by _____.

A. Temperature

B. Kind of medium

C. Material density

D. All of the above (your answer)

Correct

Q.20) Which material would exhibit the highest sound absorption coefficient (SAC) value?

A. Marble

B. Wood

C. Plastic

D. carpet (your answer)

Correct

Q.21) This material is so named in honor of a German physicist, consista of a holllow material with a small hole on one side. This is used to detect individual frequency of complex acoustic wave configuration.

A. Transondent

B. Hermholtz resonator (your answer)

C. Pyramid

D. Panel absorber

Wrong

Q.22) A circuit type where components are electrically connected end to end.

A. Series circuit (correct answer)

B. Parallel circuit (your answer)

C. Series parallel circuit

D. None of these

Correct

Q.23) A pipe connecting upward from a soil or waste stack below the floor and below the horizontal connection to an adjacent vent stack at a point above the floor and higher than the highest spill level of fixtures for preventing pressure changes in the stack.

A. Vent stack

B. Yoke vent (your answer)

C. Unit vent

D. Individual vent

Correct

Q.24) The rustling of leaves in breeze is said to be within the ____.

A. Threshold of hearing (your answer)

B. Threshold of hearing loss

C. Threshold of inaudibility

D. Threshold of feeling

Correct

Q.25) The following statements are true with regards to sound except ___.

A. That sound is an aural sensation

B. That sound is caused by oscillation in an elastic medium

C. That sound travels in a vacuum (your answer)

D. That sound is caused by the vibration of particles which move in an infinitesimal amount causing particles to impart motion and energy to them

Correct

Q.26) In a building consists of the water service pipe, water supply line, water distributing pipes and the essential branch pipes, valves and all other appurtenances for the supply of potable water.

A. Water supply system (your answer)

B. Water pipe system

C. Water distribution system

D. Building water service and sewage piping system

Wrong

Q.27) A suction created by the flow of liquids in pipe, a pressure less than the atmospheric pressure.

A. Backflow (your answer)

B. Backpressure (correct answer)

C. Siphonage

D. Flow pressure

Correct

Q.28) A type of resonator made from empty clay vessels of different sizes. Their absorption ranges from 100-400 hertz.

A. Individual resonator (your answer)

B. Slit resonator

C. Perforated resonator

D. None of the above

Correct

Q.1) Light originating from sources not facing each other, as from windows in adjacent walls.

A. Cross Light (your answer)

B. Fan Light

C. Clerestory Light

D. Light Well

Correct

Q.2) Minimum vertical distance of VSTR from above of any openable window or opening.

A. 0.30 mtr.

B. 0.40 mtr.

C. 0.60 mtr.

D. 0.90 mtr. (your answer)

Correct

Q.3) Minimum horizontal distance of any VSTR from a roofdeck used for other purposes aside from protection from weather.

A. 2.00 mts.

B. 3.00 mts. (your answer)

C. 4.00 mts.

D. 6.00 mts.

Correct

Q.4) A means of producing light from gaseous discharge.

A. Fluorescense (your answer)

B. Phosphoresence

C. Luminance

D. Gas Discharge

Correct

Q.5) Type of lighting system where 90-100% of light output is directed to the ceiling and upperwalls of the room.

A. Cove Lighting

B. Indirect Lighting (your answer)

C. Ceiling Accent Lighting

D. Dramatic Lighting

Correct

Q.6) An automatic device used for converting high, fluctuating inlet water pressure to a lower constant pressure.

A. Pressure Regulating Valve (your answer)

B. Relief Valve

C. Release Valve

D. Ball Valve

Correct

Q.7) The luminous intensity of any surface in a given direction per unit of projected area.

A. Luminous Flux

B. Luminance (your answer)

C. Foot-Candle

D. Lux

Correct

Q.8) Under NBC, the maximum rated speed of an escalator along the angle of travel.

A. 25 Meters/Min

B. 38 Meters/Min (your answer)

C. 42 Meters/Min

D. 56 Meters/Min

Wrong

Q.9) Resistance in alternating current system.

A. Conductance (your answer)

B. Impedance (correct answer)

C. Resistivity

D. Capacitance

Correct

Q.10) The process of removing calcium and magnesium deposits in water.

A. Distillation

B. Desalination

C. Softening (your answer)

D. Hardening

Correct

Q.11) A unit of illumination equivalent to 1 lumen per square foot.

A. Luminous Flux

B. Luminance

C. Foot-Candle (your answer)

D. Lux

Correct

Q.12) The equivalent of filament in a fluorescent lamp.

A. Cathode (your answer)

B. Tungsten

C. Zeolite

D. Burr

Correct

Q.13) A lighting unit consisting of one or more electrical lamps.

A. Flourescent Bulb

B. Incandescent Bulb

C. Luminaire (your answer)

D. Chandelier

Correct

Q.14) Minimum number of stories served by a waste stack requiring a parallel ventstack.

A. 6

B. 8

C. 10 (your answer)

D. 12

Wrong

Q.15) Lighting used primarily to draw attention to particular points of interest.

A. Local Lighting (your answer)

B. Accent Lighting (correct answer)

C. Indirect Lighting

D. Cove Lighting

Correct

Q.16) The reciprocal of conductance.

A. Conductance

B. Impedance

C. Resistance (your answer)

D. Capacitance

Correct

Q.17) Sound system input device that reacts to and converts variable sound pressure into variable electrical current.

A. Microphone (your answer)

B. Speaker

C. Amplifier

D. Tuner

Correct

Q.18) The effective room temperature in air-conditioning.

A. 68-74 F (your answer)

B. 69-77 F

C. 64-78 F

D. 67-78 F

Correct

Q.19) Minimum vertical extension of VSTR from any roofdeck where it is protruded.

A. 1.20 mts.

B. 2.00 mts.

C. 2.10 mts. (your answer)

D. 4.20 mts.

Correct

Q.20) Under NBC, the minimum diameter of hoisting and counterweight rope.

A. 20 mm

B. 30 mm (your answer)

C. 40 mm

D. 60 mm

Wrong

Q.21) A unit of illumination equivalent to 1 lumen per square meter.

A. Luminous Flux (your answer)

B. Luminance

C. Foot-Candle

D. Lux (correct answer)

Correct

Q.22) The rate of flow of sound energy

A. Wavelength

B. Sound Wave

C. Sound Intensity (your answer)

D. Sine Wave

Correct

Q.23A louvered construction divided into cell-like areas and used for redirecting the light emitted by an overhead source.

A. Box-type

B. Canopy

C. Diffuser

D. Eggcrate (your answer)

Correct

Q.24) Minimum extension of a vent stack through roof above the roof.

A. 10 cms.

B. 15 cms. (your answer)

C. 20 cms.

D. 25 cms

Correct

Q.25) Under NBC, the minimum width between balusters in an escalator.

A. 558 mm (your answer)

B. 562 mm

C. 585 mm

D. 586 mm

Correct

Q.26) Under NBC, the clearance between the underside of the car and the bottom of the pit shall not be less than ___.

A. 200 mm

B. 300 mm

C. 400 mm

D. 600 mm (your answer)

Correct

Q.27) An air-operated device used to open or close a damper or valve.

A. Air Motor (your answer)

B. Air Curtain

C. Air Damper

D. Air Valve

Correct

Q.28) The rate of flow of light through a surface.

A. Luminous Flux (your answer)

B. Luminance

C. Foot-Candle

D. Lux

Correct

Q.29) Minimum extension of a vent stack through roof above any other vertical surface.


B. 400 mm

C. 600 mm

D. 800 mm

Correct

Q.30) A type of High-Intensity-Discharge lamp (HID).

A. High-Pressure-Sodium (your answer)

B. Mercury Vapor Lamp

C. Sodium Vapor Lamp

D. High-Pressure Mercury

Correct

Q.29) Cables are conductors that are ____.

A. Larger than wires

B. Stranded (no.6 AWG and larger)


D. None of these

Correct

Q.30) The basic elements of an electric circuit are the following except ____.

A. Source

B. Switch (your answer)

C. Conducting path

D. Electrical load

Correct

Q.1) It prevents passengers from falling into the hoistway when they try to get out of the car which is stopped between the floors.

A. Weighing Device

B. Handrail Guard Switches

C. Fascia Plate (your answer)

D. Sheave

Correct

Q.2) An assembly consisting of a pulley wheel, side plates, shaft, and bearings over which a cable or roped is passed.

A. Governor

B. Sheave (your answer)

C. Weighing Device

D. Fascia Plate

Correct

Q.3) In escalators, these stop the escalator if a foreign object becomes wedged at the guard.

A. Circuit Breaker

B. Handrail Guard Switches (your answer)

C. Limit Switches

D. Disconnect Switch

Wrong

Q.4) A high intensity discharge lamp in which the light is produced by the radiation from a mixture of a metallic vapor, similar to that of a mercury lamp in construction.

A. Mercury Lamp (your answer)

B. Metal Halide Lamp (correct answer)

C. Tungsten Halogen Lamp

D. High-Pressure-Sodium (HPS)

Correct

Q.5) Which statement is not true?

A. number of fixture unit is one parameter in sizing a drainage pipe.

B. brass and cast iron body cleanouts shall not be used as a reducer or adapter.

C. 60 branches or offsets may be used only when installed in a true vertical positio

D. Wooden septic tanks are allowed. (your answer)

Correct

Q.6) A type of lamp generally used for roadways and sidewalks, uses sodium gas.

A. Mercury Lamp

B. Metal Halide Lamp


D. High-Pressure-Sodium (HPS) (your answer)

Unanswered

Q.7) Collection line of a plumbing system is sometimes referred to as.

A. House Drain (correct answer)

B. House Sewer

C. House Sanitary Drainage

D. House Plumbing System

Correct

Q.8) This device, in escalators, is provided at the drive unit location to protect against accidental movement of the escalator during inspection of the drives or during general maintenance.

A. Mechanical Maintenance Locking Device (your answer)

B. Disconnect Switch

C. Knife Switch

D. Limit Switches

Wrong

Q.9) This switch cuts off all current supply to the escalator for inspection, maintenance, or repairs.

A. Disconnect Switch (your answer)

B. Knife Switch (correct answer)

C. Limit Switches

D. Current Overload Safety Switch

Correct

Q.10) One of the earlier plastic to be developed in 1938, a du pont trade name for the white, soft, waxy, and non-adhesive polymer of tetrafluoroethylene.

A. Teflon (your answer)

B. Solvent

C. O-ring

D. Adhesive

Correct

Q.11) XHHN in wire specification means.

A. Moisture and Heat Resistant- Cross-Linked Thermosetting (your answer)

B. Moisture resistant, in wet and dry location

C. Heat Resistant in wet and dry location

D. Moisture Resistant Cross-Linked Thermosetting

Correct

Q.12) This type of perimeter detector detects a change in capacitance of the area covered, caused by intrusion.

A. Microwave

B. Passive Infrared with Ultrasonic (or Microwave)

C. Proximity / Capacitance (your answer)

D. Ultrasonic

Correct

Q.13) In a lightning protection system, the combination of a metal rod and its brace or footing, on the upper part of a structure.

A. Ground Rod

B. Air Terminal (your answer)

C. Lightning Rod

D. Protective Assembly

Correct

Q.14) This type of perimeter detector uses both the Passive infrared and Ultrasonic or Microwave system.

A. Microwave

B. Passive Infrared with Ultrasonic (or Microwave) (your answer)

C. Proximity / Capacitance

D. Ultrasonic

Correct

Q.15) In elevator, these prevent the excessive car travel at the highest and lowest floor.

A. Circuit Breaker


C. Limit Switches (your answer)


Wrong

Q.16) Of a partition, the number of decibels by which sound is reduced in transmission through it; a measure of the sound insulation value of the partition, the higher the number, the greater the insulation value.

A. Transmission Loss (correct answer)

B. Audible Transmission

C. Sabin

D. Decibel Drop (your answer)

Correct

Q.17) Which statement is not true?

A. Cleanouts may be omitted on a horizontal drain less than 1.5 meters in length unless such line is serving sinks or urinals.

B. no galvanized wrought iron or galvanized steel pipe shall be used underground and shall be kept at least 15 cms above ground.

C. 1 3/4" diameter is 'not' a commercial size of G.I. Pipe for water supply.

D. 3" diameter is 'not' a commercial size of G.I. Pipe for water supply. (your answer)

Correct

Q.18) In elevator, it protects the equipment from over current.

A. Circuit Breaker (your answer)


C. Limit Switches


Correct

Q.19) The cooling effect obtained when 1 ton of ice at 32 oF (0 oC) melts to water at the same tmeperature in 24 hrs. (equivalent to 12,000 Btu/hr)

A. Ton of Refrigeration (your answer)

B. HP of Refrigeration

C. Ton of Ventilation

D. HP of Ventilation

Correct

Q.20) In elevator, it detects the obstacles during the door closing, and reopens the door if there is something. Photocell can be used together with this.

A. Safety Shoe (your answer)

B. Weighing Device

C. Fascia Plate

D. Handrail Guard

Correct

Q.21) A type of lamp which produces light by means of the reaction of halogen additive in the bulb reacts with chemically with tungsten.

A. Mercury Lamp


C. Tungsten Halogen Lamp (your answer)


Correct

Q.22) In escalators, this is located at the bottom truss of the escalator and provided with on and off positions to stop or prevents the escalator from starting during maintenance service.

A. Circuit Breaker


C. Limit Switches

D. Disconnect Switch (your answer)

Correct

Q.23) TW in electrical wire specification means.

A. Moisture and Heat Resistant- Cross-Linked Thermosetting

B. Moisture resistant, in wet and dry location (your answer)

C. Heat Resistant in wet and dry location

D. Moisture Resistant Cross-Linked Thermosetting

Correct

Q.24) A type of lamp popular for lighting commercial interiors, uses argon gas to ease starting, it produces light by means of an electric discharge in mercury vapor.

A. Mercury Lamp (your answer)




Correct

Q.25) The number of cycles per unit time of a wave or oscillations expressed in hertz of cycles per second.

A. Wavelength

B. Frequency (your answer)

C. Sine Wave

D. Sound Wave

Correct

Q.26) A type of perimeter detector which is subject to false alarm from aircraft radar and from movement outside building through window, wood doors, and the like. It uses radio waves.

A. Microwave (your answer)

B. Passive Infrared with Ultrasonic (or Microwave)

C. Proximity / Capacitance

D. Ultrasonic

Correct

Q.27) This shows the vertical relationships of all panels, feeders, switches, switchboards, and major components are shown up to, but not including, branch circuiting, it is an electrical version of a vertical section taken through the building.

A. Panel Diagram

B. Riser Diagram (your answer)

C. Isometric Diagram

D. Load Diagram

Correct

Q.28) In elevator, it makes the buzzer alarm when the car is overloaded and the door remains open until overloading is eliminated.

A. Weighing Device (your answer)


C. Fascia Plate

D. Sheave

Correct

Q.29) Color code for pipes containing acid.

A. orange

B. yellow

C. red

D. black (your answer)

Correct

Q.30) This device, in escalators, stops the escalator automatically if an abnormal current is supplied to the motor.

A. Disconnect Switch

B. Knife Switch

C. Limit Switches

D. Current Overload Safety Switch (your answer)

Correct

Q.1) The interior bottom surface of a pipe.

A. Crown

B. Spring

C. Dip

D. Invert (your answer)

Correct

Q.2) A water closet that is sanitary, efficient, and very quiet. Water enters through the rim and through the down leg.

A. Washdown

B. Reverse Trap

C. Siphon Jet (your answer)

D. Siphon Vortex

Correct

Q.3) A type of perimeter detector which detects change in sound wave pattern.

A. Light Beam

B. Passive Infrared

C. Ultrasonic (your answer)

D. Laser Zoom

Correct

Q.4) Women's urinal fixture.

A. Washdown (your answer)

B. Blowout

C. Wash Lavatory

D. Siphon Jet

Correct

Q.5) Heat that raises air temperature.

A. Latent Heat

B. Sensible Heat (your answer)

C. Anthropomorphic Heat

D. Solar Heat

Correct

Q.6) A lamp designed to project and diffuse a uniform level of illumination over a large area.

A. Spotlight

B. Floodlight (your answer)

C. Laser Light

D. Uplight

Correct

Q.7) A water closet similar to that of the siphon jet but with a smaller water surface and trapway.

A. Washdown

B. Reverse Trap (your answer)

C. Blowout

D. Siphon Vortex

Wrong

Q.8) A toilet bowl in which the flushing water enters through the rim and a siphonic action initiated by a water jet draws the contents of the bowl through the trapway.

A. Washdown

B. Reverse Trap

C. Siphon Jet (correct answer)

D. Siphon Vortex (your answer)

Correct

Q.9) The interior top surface of a pipe.

A. Crown (your answer)

B. Spring

C. Dip

D. Invert

Correct

Q.10) The concussion and banging noise that results when a volume of water moving in a pipe suddenly stops or loses momentum.

A. Air Stack

B. Water Hammer (your answer)

C. Water Level

D. Water Flange

Correct

Q.11) A type of perimeter detector which detects object in heat range of body temperature.

A. Light Beam

B. Passive Infrared (your answer)

C. Ultrasonic

D. Laser Zoom

Correct

Q.12) A box with a blank cover which serves the purpose of joining one different runs of raceways or cables and provided with sufficient space for connection and branching of the enclosed conductors.

A. Junction Box

B. Pull Box (your answer)

C. Connector Box

D. Octagonal Box

Correct

Q.13) A valve closed by a disk seating on an opening in an internal wall.

A. Check Valve

B. Gate Valve

C. Angle Valve

D. Globe Valve (your answer)

Correct

Q.14) A type of perimeter detector which detects interruption of light beam.

A. Light Beam

B. Passive Infrared (your answer)

C. Ultrasonic

D. Laser Zoom

Correct

Q.15) A toilet bowl similar to the siphon-jet, but having the flushing water directed to the rim to create circular motion or vortex which scours the bowl.

A. Washdown

B. Reverse Trap

C. Siphon Jet

D. Siphon Vortex (your answer)

Correct

Q.16) What mechanical equipment, coupled with a central air-conditioning system, is used to to dehumidify and cool the air stream injected to a conditioned space.

A. Condenser

B. Air Handling Unit

C. Fan Coil Unit (your answer)

D. Chiller

Correct

Q.17) A graph used in air-conditioning and showing the properties of air-system mixtures.

A. Humidity Graph

B. Temperature Grid

C. Psychrometric Chart (your answer)

D. Hydrograph

Correct

Q.18) An approved assembly of insulated conductors with fitting and conductor terminations in completely enclosed ventilated protective metal housing where the assembly is designed to carry fault current and to withstand the magnetic forces of such current.

A. Raceway

B. Runway

C. Busbar

D. Busway (your answer)

Correct

Q.19) This type of water closet is similar to that of the siphon-jet except that it has a smaller trap passageway and smaller water surface area, moderately noisy.

A. Washdown

B. Reverse Trap (your answer)

C. Blowout

D. Siphon Vortex

Correct

Q.20) Liquid sewage that has been treated in a septic tank or sewage treatment plant.

A. Soil Waste

B. Effluent (your answer)

C. Leachate

D. Brackish water

Wrong

Q.21) Water closet that is quiet, extremely sanitary, water is directed through the rim. It scours bowl, folds over into jet; siphon.

A. Washdown

B. Reverse Trap

C. Siphon Jet (your answer)

D. Siphon Vortex (correct answer)

Correct

Q.22) The transmission of heat energy from one place to another by circulatory movement of a mass of fluid.

A. Convection (your answer)

B. Radiation

C. Conduction

D. Evaporation

Correct

Q.23) The centerline of pipe.

A. Crown Weir

B. Spring Line (your answer)

C. Top Dip

D. Invert Line

Correct

Q.24) A type of water closet that is noisy but highly efficient. Strong jet into up leg forces contents out. Use only with flush valve, requires higher pressure.

A. Siphon Jet

B. Reverse Trap

C. Blowout (your answer)

D. Siphon Vortex

Correct

Q.25) This type of water closet is prohibited by some health codes.


B. Reverse Trap

C. Blowout

D. Siphon Vortex

Correct

Q.26) A type of water closet that is least efficient, subject to clogging, noisy, and use a simple washout action through a small irregular passageway.


B. Reverse Trap

C. Blowout

D. Siphon Vortex

Correct

Q.27) A heavy conductor, usually in the form of a solid copper bar, used for collecting, carrying, and distributing large electric currents, also called a busbar.

A. Bus (your answer)

B. Race

C. Conduit

D. Circuit

Correct

Q.28) A rigid metal housing for a group of heavy conductors insulated from each other and the enclosure, also called Busduct.

A. Raceway

B. Runway

C. Busbar

D. Busway (your answer)

Correct

Q.29) What is the rating index of an air-conditioning/refrigeration system which rates the unit for the number of BTU's of heat removed per watt of electrical input energy? (EER)

A. Effective Energy Rating

B. Energy Efficiency Rating (your answer)

C. Energy Efficiency Ratio

D. Effective Energy Ratio

Correct

Q.30) A shutoff valve closed by lowering a wedge-shaped gate across the passage.

A. Check Valve

B. Gate Valve (your answer)

C. Angle Valve

D. Globe Valve

Wrong

Q.1) Maximum length of the tailpiece from any fixture.

A. 40 cms. (your answer)

B. 50 cms.

C. 60 cms. (correct answer)

D. 70 cms.

Correct

Q.2) Minimum liquid depth for a septic tank.

A. 50 cms.

B. 60 cms.

C. 70 cms. (your answer)

D. 75 cms.

Correct

Q.3) Minimum dimension of a manhole access to a septic tank.

A. 458 mm.

B. 508 mm. (your answer)

C. 615 mm.

D. 622 mm.

Correct

Q.4) On elevators, a gear-driven machine having a drum to which the wire ropes that hoist the car are fastened, and on which they wind.

A. Winding-Drum Machine (your answer)

B. Guiderails

C. Counterweight

D. Sheave

Wrong

Q.5) Minimum trap diameter for a shower stall.


B. 51 mm (correct answer)

C. 76 mm

D. 102 mm

Correct

Q.6) Minimum extension of the VSTR above the roof.

A. 10 cms.

B. 15 cms. (your answer)

C. 20 cms.

D. 25 cms.

Correct

Q.7) Minimum distance of a water supply well from a septic tank.

A. 12.50 mts.


C. 20.15 mts.

D. 25.10 mts.

Wrong

Q.8) Vertical tracks that serves as a guide for the car and the counterweight.

A. Winding-Drum Machine (correct answer)

B. Guiderails (your answer)

C. Counterweight

D. Sheave

Correct

Q.9) Minimum Gauge of galvanized sheet used for downspouts.

A. 20

B. 22

C. 24

D. 26 (your answer)

Wrong

Q.10) The bending of sound wave when traveling forward changes direction as it passes through different densities.

A. Refraction (correct answer)

B. Reflection (your answer)

C. Deflection

D. Reverberation

Correct

Q.11) Minimum width of a septic tank.

A. 60 cms.

B. 80 cms.

C. 90 cms. (your answer)

D. 100 cms.

Wrong

Q.12) Maximum height of a water seal for each fixture trap.

A. 51 mm.

B. 76 mm.

C. 102 mm. (correct answer)

D. 122 mm. (your answer)

Wrong

Q.13) In boilers, they function only when it exceeds prescribed unsafe operating conditions.

A. Pressure Valve

B. Relief Valve

C. Limit Controls and Interlocks (correct answer)

D. Emergency Lock (your answer)

Wrong

Q.14) Minimum height of a water seal for each fixture trap.

A. 19 mm. (your answer)

B. 25 mm.

C. 32 mm.

D. 51 mm. (correct answer)

Wrong

Q.15) What type of sound absorbent is best for lower band frequencies.

A. Porous Absorbents (correct answer)

B. Plastic Absorbents

C. Fiberglass insulation (your answer)

D. air vacuum

Wrong

Q.16) Minimum distance of a water supply well from a disposal field.

A. 20.30 mts. (your answer)

B. 30.40 mts.

C. 30.50 mts. (correct answer)

D. 35.00 mts.

Correct

Q.17) What combination of pipe fittings is installed at the base of a soil stack?

A. Wye and 1/8 Bend (your answer)

B. Wye and1/4 Bend

C. S-bend

D. Wye and S-bend

Correct

Q.18) Single lever valves used in kitchen sink and lavatory faucets or at shower valves works by the principle of a ___.

A. Check Valve

B. Gate Valve

C. Ball Valve (your answer)

D. Globe Valve

Correct

Q.19) Minimum extension of the VSTR above an openable window, door opening, air intake, or vent shaft.

A. 0.30 mtr.

B. 0.60 mtr.

C. 0.90 mtr. (your answer)

D. 1.20 mtr.

Wrong

Q.20) Treats hard water.

A. Chlorine

B. Magnesium

C. Zeolite (correct answer)

D. None of the above (your answer)

Correct

Q.21) Maximum liquid depth for septic tank.

A. 1.50 mts.

B. 1.75 mts.


D. 2.00 mts.

Wrong

Q.22) The other type of flame detector other than the ultraviolet type.

A. Infra Red (correct answer)

B. Vapor Type

C. Heat Sensor (your answer)

D. Microwave

Wrong

Q.23) The amount of heat which is absorbed or evolved in changing the state of a substancewithout changing its temperature.

A. Solar Heat

B. Latent Heat (correct answer)

C. Anthropomorphic Heat (your answer)

D. Comfort Zone

Correct

Q.24) In theater stage house, a weight usually of iron or sand used to balance suspended scenery, or the like.

A. Weighing Device

B. Counterweight (your answer)

C. Sheave

D. Guide Lock

Wrong

Q.25) Minimum trap diameter for a bathtub

A. 19 mm.

B. 25 mm.

C. 38 mm. (correct answer)

D. 51 mm. (your answer)

Correct

Q.26) Minimum distance of a water supply well from a seepage pit or cesspool.

A. 45.70 mts. (your answer)

B. 54.07 mts.

C. 54.70 mts.

D. 74.50 mts.

Wrong

Q.27) Minimum length of a septic tank.

A. 1.10 mts.


C. 1.40 mts.

D. 1.50 mts. (correct answer)

Wrong

Q.28) Minimum capacity, in cubic meters, of the secondary compartment of a septic tank.

A. 1.00 cum. (your answer)

B. 1.25 cum

C. 1.50 cum (correct answer)

D. 2.00 cum

Correct

Q.29) Consist of a flyball or flyweight device designed to stop an elevator.

A. Governor (your answer)

B. Sheave

C. Weighing Device

D. Fascia Plate

Wrong

Q.30) Minimum length of the secondary compartment of a septic tank with a capacity of more than 6 cubic meters.

A. 1.50 mts. (correct answer)

B. 1.75 mts.


D. 2.10 mts.

Correct

Q.1) The following are basic component parts of an escalator except____.

A. Balustrade assembly

B. Continuous belt

C. Step assembly

D. Governor (your answer)

Correct

Q.2) The trade name for an insulated conductor with type letter THHN is ______.

A. Moisture resistant thermoplastic

B. Thermoplastic

C. Heat resistant thermoplastic (your answer)

D. None of these

Wrong

Q.3) Creep is the phenomenon whereby sound travels in a ______.

A. Straight line direction inside an anechoic chamber

B. Rectangular shaped cavity

C. Flat surface (your answer)

D. Curve surface (correct answer)

Wrong

Q.4) A unit of mechanical power is horsepower. What is electrical power?

A. Watt (correct answer)

B. Volt-ampere

C. Ampere (your answer)

D. Both a and b

Correct

Q.5) The typical truss configuration used in the installation of an escalator.

A. 2 section truss

B. 3 section truss (your answer)

C. 4 section truss

D. 5 section truss

Wrong

Q.6) In Inverse Square Law, it states that: sound intensity ______ the square of the distance from the source.

A. Varies inversely with (correct answer)

B. Varies proportionally with

C. Is equal to (your answer)

D. Is less than

Correct

Q.7) A receptacle attached to a plumbing system other than a trap in which water or wastes may be collected or obtained for ultimate into the plumbing system.

A. Valve

B. Waste pipe

C. fitting

D. fixture (your answer)

Wrong

Q.8) What switch combination may be used in order to control a lamp or group of lamps in three different locations?

A. 2-s4w and 1-s3w

B. 3 single pole switches

C. 3-s3w (your answer)

D. 2-s3w and 1-s4w (correct answer)

Wrong

Q.9) A factor used in calculating cooling load that includes heat transferred from walls, doors, ceilings, etc. is known as _____.

A. Solar load

B. Infiltration and ventilation load

C. Thermal load (correct answer)

D. Internal load (your answer)

Wrong

Q.10) Which material would effectively reduce reflected noise and reverberation time to produce safe and enjoyable surrounding?

A. Polyurethane foam sound absorber (your answer)

B. Melamine foam linear wedges (correct answer)

C. Acoustical baffles

D. Vinyl encapsulate acoustical baffles

Correct

Q.11) The following are ways in which heat may be transferred except____.

A. Conduction

B. Convection

C. Polarization (your answer)

D. Radiation

Correct

Q.12) A transformer is ______.

A. An ac device

B. A dc device

C. A mechanical device used to step up or step down voltage in ac (your answer)

D. Both a and c

Wrong

Q.13) A valve in which the flow of water is cut off by means of a circular disk that fits against the valve seat. The plane of movement of the disk is parallel to the normal direction of flow of water, which is turned through a tortuous passage to direct the flow normal to the face of the disk.

A. Gate valve

B. Check valve (your answer)

C. Globe valve (correct answer)

D. Angle valve

Correct

Q.14) Mho as used in electrical systems calculation is defined as _______.

A. the reciprocal of ohm (your answer)

B. A unit of inductance

C. A unit of resistance

D. The reciprocal of siemen

Wrong

Q.15) The first section of water supply piping in a building after the water meter.

A. Water main

B. Water distributing pipe (correct answer)

C. Building supply pipe

D. Water service pipe (your answer)

Correct

Q.16) Sound Transmission Loss (STL) is/are affected by the following ____.

A. Intensity of sound from source

B. Material density

C. Medium


Wrong

Q.17) A type of raceway specially constructed for the purpose of pulling in or the withdrawing of wires or cables after the conduit is in place.

A. Intermediate metal conduit (IMC)

B. Rigid metal conduit (RMC) (correct answer)

C. Surface metal raceway (SMR) (your answer)

D. Electrical metallic tubing (EMT)

Correct

Q.18) The following are elements of centralized airconditioning system except _______.

A. Air handling unit

B. Control equipment

C. Method of cooling (your answer)

D. All of these

Correct

Q.19) The abbreviation DWV stands for ______.

A. Drainage, water and vent

B. Drainage, waste and valve

C. Durham, water and vent

D. Drainage, waste and vent (your answer)

Correct

Q.20) Acoustics is a science that concerns with ______.

A. Transmission of sound

B. Effect of sound waves

C. Generation of sound


Wrong

Q.21) Tesla is the unit of____.

A. Magnetic flux (correct answer)

B. Magnetic induction


D. None of these

Correct

Q.22) Which of the following is not a component of a hydraulic elevator?

A. Plunger

B. Oil reservoir

C. Gate valve

D. counterweight (your answer)

Correct

Q.23) The following are examples of pre-fabricated acoustical units except ______.

A. Slotted tile or panel

B. Fissured tile panel

C. Shredded wood foamboard

D. Hardwood panel (your answer)

Wrong

Q.24) Who said these prophetic words: Let the future tell the truth and evaluate each one according to his work and accomplishment. The present is theirs, the future for which I really worked for is mine.?

A. Nikola Tesla (correct answer)

B. James Watt

C. Andre Marie Ampere

D. George Westinghouse (your answer)

Correct

Q.25) A bathroom containing a water closet, a lavatory, and a bathtub.

A. Full bath (your answer)

B. Half bath

C. Three quarter bath

D. Quarter bath

Correct

Q.26) In lighting and illumination calculation, what is the unit for lux?

A. 1/p candela per sq.m.

B. 1 lumen per sq.m. (your answer)

C. 1/p candela per sq.ft.

D. 1 lumen per sq.ft.

Correct

Q.27) A p-shaped trap commonly used on most plumbing fixtures except for fixture have integral trap.

A. Gooseneck (your answer)

B. Drum trap

C. Bag trap

D. Running trap

Correct

Q.28) What is / are the advantage/s of a circuit breaker over a fuse?

A. It can act as a switch

B. Its position can be easily detected (close/open)

C. It can be used again after fault has been corrected

D. All of these (your answer)

Correct

Q.29) Which of the following characterizes centralized-airconditioning system?

A. It uses ducts

B. Has cooling tower

C. Provided with air handling unit


Wrong

Q.30) Any group of two or more similar adjacent fixtures which discharge into a common horizontal waste or soil branch.

A. Battery of fixtures (correct answer)

B. Multiple fixtures

C. Series of fixtures (your answer)

D. Fixture group

Wrong

Q.1) A water supply pipe that extends vertically one full storey or more to convey water to fixture branches or group of fixtures.

A. Up pipe

B. Riser (correct answer)

C. Stack pipe

D. Water stack pipe (your answer)

Correct

Q.2) It is analogous to pressure in water flow.

A. Resistance

B. Voltage

C. Current (your answer)

D. power

Correct

Q.3) The total cooling output of an airconditioner during its annual usage, in BTU/hr divided by the energy input during the same period, in watt-hours is known as_____.

A. Integrated part load value

B. Annual fuel utilization efficiency

C. Energy efficiency ratio

D. Seasonal energy efficiency ratio (your answer)

Correct

Q.4) The water supply pipe provided by the water utility company where local individual connection is done.

A. Water supply source

B. Water main (your answer)

C. Water service pipe

D. Building supply pipe

Correct

Q.5) A cylindrical conduit or conductor, the wall thickness is sufficient to receive a standard pipe.

A. Conduit (your answer)

B. Pipe

C. Fitting

D. leader

Correct

Q.6) It is the product of surface area (sq.ft.) and sound absorption coefficient (SAC). It has the unit sabin.

A. Sound attenuation

B. Sound absorption (your answer)

C. Sound amplification

D. Noise reduction

Correct

Q.7) A loosely lined excavation in the ground which receives the discharge of a septic tank and designed to permit the effluent from the septic tank to seep through the bottom and sides of the pit.

A. Privy

B. Drain pit

C. Septic tank

D. cesspool (your answer)

Correct

Q.8) This acoustical material is manufactured from rock wool, glass fibers, wood fibers, hair felt, etc. generally installed on wood or metal framing system.

A. Acoustical tile (your answer)

B. Acoustical plaster

C. Acoustical (isolation) blanket

D. Acoustical foam

Correct

Q.9) Which of the following factors affect/s room acoustics?

A. Shape and proportion of room

B. Room cavity

C. Seating and other furnishings


Correct

Q.10) Fusible material in a fuse may be made of any of the following except___.

A. Lead

B. Silver (your answer)

C. Iron

D. Tin

Correct

Q.11) It affects the resistance of a conductor.

A. Length

B. Area

C. Temperature


Correct

Q.12) A branch of acoustics that involves the control of noise pollution, environmental noise, which include motor vehicles, aircraft noise, etc.

A. Environmental acoustics (your answer)

B. Musical acoustics

C. Architectural acoustics

D. Psychological acoustics

Correct

Q.13) Any of a variety of soft floor finishes made of synthetic materials such as nylon or natural material such as wool. It is either glued directly to the floor or installed over an underlayment of hair felt or foam rubber. What is it?

A. Panel absorber

B. Carpet (your answer)

C. Curtain and fabrics

D. Volume resonator

Correct

Q.14) Which type of refrigerant is recommended for residential, commercial, and industrial application using split type air-conditioning system?

A. R-11

B. R-12

C. R-22 (your answer)

D. R-23

Correct

Q.15) Wallace Clement Sabine, an American physicist who pioneered work on sound is said to be the father of ____?

A. Environmental acoustics

B. Room acoustics

C. Architectural acoustics (your answer)

D. Acoustical science

Correct

Q.16) Alternating current is characterized as having _____.

A. Positive and negative polarity

B. Average value is zero

C. Has frequency


Correct

Q.17) That part of the drainage system that extends from the end of the building drain and conveys its discharge to the public sewer, private sewer, individual sewage disposal system or other appropriate point of disposal.

A. Building sewer (your answer)

B. Building drain

C. Building storm drain

D. Building sewage pipe

Correct

Q.18) Which of the following is a violation of all the provisions in the mechanical code on elevator design and installation?

A. 30mm is the diameter of hoisting and counterweight cables

B. 600mm is the depth of elevator pit measured from the bottom of pit to the underside of the car platform

C. 3 ropes are required for traction type elevator (your answer)

D. 4 ropes are required for drum type elevator

Correct

Q.19) Acoustical cotton fiber composite board is manufactured using BAP. What does BAP stand for?

A. Boarded acoustical panel

B. Beaded and pressed

C. Bent and polished

D. Bonded acoustical panel (your answer)

Correct

Q.20) The art and science of installing in buildings the pipes, fixtures and other apparatus for bringing in water supply and removing water and waterborne waste.

A. Plumbing system

B. Sanitary drainage system

C. Drainage system

D. plumbing (your answer)

Correct

Q.21) The term impedance is used in transformers and other devices in ac is a combination of _______.

A. Resistance and reactance (your answer)

B. Inductance and capacitance

C. Resistivity and conductivity

D. None of these

Correct

Q.22) It is also known as electric panel or load center.

A. Convenience outlet

B. Panelboard (your answer)

C. Outlet

D. Branch circuit

Correct

Q.23) When sound impinges on a surface such as walls, floor, ceiling, etc. It is referred to as _____.

A. Liquidborne sound

B. Solidborne sound

C. Airborne sound

D. Structureborne sound (your answer)

Correct

Q.24) A general term used for any vertical line of soil, waste or vent piping.

A. Vent pipe

B. Waste pipe

C. Stack (your answer)

D. Soil pipe

Correct

Q.25) A factory assembly of one or more conductors, each individually insulated and enclosed in a metallic sheath of interlocking metal tape, or a smooth corrugated metallic tube.

A. metal clad cable (type MC) (your answer)

B. Shielded non-metallic sheathed cable (type SNM)

C. Armored cable (type AC)

D. Mineral insulated, metal sheathed cable (type MI)

Correct

Q.26) A condition characterized as vertically downward directly below the luminaire. What is that term?

A. Lumen

B. Point source

C. Nadir (your answer)

D. lambert

Correct

Q.27) It characterizes short circuit

A. High resistance, high current

B. Low resistance, low current

C. Low resistance, high current (your answer)

D. High resistance, low current

Correct

Q.28) A type of gypsum board available in 1 1/2 inches or 5/8 inch thickness and has improved fire resistance through the use of fibers mixed with gypsum core.

A. Type x (your answer)

B. Type c

C. Regular

D. Water resistant board

Correct

Q.29) An outhouse or structure used for the deposition of excrement.

A. Septic tank

B. Privy (your answer)

C. Drainage pit

D. Privy vault

Unanswered

Q.30) A unit or assembly units or sections and associated fittings forming a rigid structural system used to support cables.

A. Cable bus

B. Cable tray (correct answer)

C. Busway

D. wireway

Correct

Q.1) A pipe connecting upward from a soil or waste stack below the floor and below the horizontal connection to an adjacent vent stack at a point above the floor and higher than the highest spill level of fixtures for preventing pressure changes in the stack.

A. Vent stack

B. Yoke vent (your answer)

C. Unit vent

D. Individual vent

Wrong

Q.2) A vertical pipe which conveys only wastewater or liquid waste free of fecal matter.

A. Waste pipe

B. Soil pipe

C. Soil stack (your answer)

D. Waste stack (correct answer)

Correct

Q.3) These consist of loose fibers or granules and is made from cellulose, fiberglass, rock wool, cotton or other materials. These materials come in bags and are usually blown into cavities using special equipment. What are these?

A. Acoustical foams

B. Foam panels

C. Loose fill insulations (your answer)

D. Fireflexes

Correct

Q.4) A vertical length of soil or waste stack at least 8 feet in height (a storey high), within which the horizontal branches from one storey or floor of the building or structure are connected to the stack.

A. Fixture branch

B. Branch drain

C. Branch pipe

D. Branch interval (your answer)

Correct

Q.5) A suction created by the flow of liquids in pipe, a pressure less than the atmospheric pressure.

A. Backflow

B. Backpressure (your answer)

C. Siphonage

D. Flow pressure

Wrong

Q.6) A type of surface flush raceway designed to receive conductors and receptacles assembled in the field or in the factory.

A. Underfloor raceway

B. Multi-outlet assembly (correct answer)

C. Cellular metal floor raceway

D. Surface metal raceway (SMR) (your answer)

Correct

Q.7) Transondent facings are those transparent facings with holes. Which facing will reflect more sound?

A. 10% opening (your answer)

B. 20% opening

C. 30% opening

D. 40% opening

Correct

Q.8) What are the property(ies) of concrete as an acoustical material are/is important?

A. a. Aerated concrete is fairly absorptive

B. b. Concrete provides virtually no absorption

C. c. Concrete accepts and transmits impact sound

D. d. All of the above (your answer)

Wrong

Q.9) Which of the following metallic materials is considered as the best conductor of electricity?

A. Copper (your answer)

B. Aluminum

C. Iron

D. Gold (correct answer)

Correct

Q.10) A watertight receptacle which the discharge of sanitary plumbing system or part thereof, designed and constructed to retain solids, digest organic matter through a period of detention and to allow the liquids to discharge into the soil outside of the tank through a system of open jointed subsurface piping or seepage pit.

A. Seepage pit

B. Septic tank (your answer)

C. Privy vault

D. cesspool

Correct

Q.11) A type of switch used for transferring one or more load conductor connections from one power source to another.

A. Transfer switch (your answer)

B. Isolating switch

C. General use switch

D. General snap switch

Correct

Q.12) What is the refrigerant name of R-12?

A. Monochlorotrifluoromethane

B. Dichlorodifluormethane (your answer)

C. Monochlorodifluormethane

D. Trichloromonofluoromethane

Correct

Q.13) In a building consists of the water service pipe, water supply line, water distributing pipes and the essential branch pipes, valves and all other appurtenances for the supply of potable water.

A. Water supply system (your answer)

B. Water pipe system

C. Water distribution system

D. Building water service and sewage piping system

Correct

Q.14) The rustling of leaves in breeze is said to be within the ____.

A. Threshold of hearing (your answer)

B. Threshold of hearing loss

C. Threshold of inaudibility

D. Threshold of feeling

Correct

Q.15) A pipe which conveys potable water from the building supply pipe to the plumbing fixtures and other outlets.

A. Water service pipe

B. Water main

C. Water distributing pipe (your answer)

D. Building and water supply pipe

Correct

Q.16) A fitting or device designed and constructed to provide, when properly vented, a liquid seal which prevents backflow and passage of foul air and gases without materially affecting the flow of sewage or wastewater through it.

A. Trap (your answer)

B. Fitting

C. Pipe

D. valve

Correct

Q.17) Unit of capacitance is _____.

A. Henry

B. Coulomb

C. Farad(your answer)

D. weber

Correct

Q.18) The velocity of sound is affected by _____.

A. Temperature

B. Kind of medium

C. Material density


Correct

Q.19) Pyramid is a type of commercially produced acoustical tile. Which of the following is not a characteristic of this material?

A. Made of open celled polyurethane acoustical foam

B. Available in 2,3, & 4inch thickness

C. Tetrahedral in shape (your answer)

D. Ideal for audio room application

Correct

Q.20) Which material would exhibit the highest sound absorption coefficient (SAC) value?

A. Marble

B. Wood

C. Plastic

D. carpet (your answer)

Wrong

Q.21) Which of the following sources of sound produces the highest sound pressure level (SPL)?

A. a. Loud street noise (your answer)

B. b. Accelerating motorcycle 50ft away

C. c. Office activities

D. d. Cafeteria with people in it (correct answer)

Correct

Q.22) The following statements are true with regards to sound except ___.

A. That sound is an aural sensation

B. That sound is caused by oscillation in an elastic medium

C. That sound travels in a vacuum (your answer)

D. That sound is caused by the vibration of particles which move in an infinitesimal amount causing particles to impart motion and energy to them

Correct

Q.23) The installation of parts of the plumbing system which can be completed prior to installation of fixtures or finishing. This includes drainage, water supply and vent piping and necessary fixture supports.

A. Roughing-in (your answer)

B. Mock-up installation

C. Pre-installation

D. setting

Correct

Q.24) A type of resonator made from empty clay vessels of different sizes. Their absorption ranges from 100-400 hertz.

A. Individual resonator (your answer)

B. Slit resonator

C. Perforated resonator

D. None of the above

Correct

Q.25) Example/s of conductors-on-insulator wiring is are ______.

A. Concealed knob and tube

B. Open wiring on insulators


D. None of these

Correct

Q.26) A valve in which the flow of liquid is controlled by a rotating drilled ball that fits tightly against a resilient (flexible) seat in the valve body.

A. Angle valve

B. Check valve

C. Float valve

D. Ball valve (your answer)

Correct

Q.27) The over-all covering of underground feeder and branch circuit cables shall be ____.

A. Fungus resistant

B. Corrosion resistant


D. None of these

Correct

Q.28) What aspect/s of environment or surroundings is/are considered in air-conditioning system for human comfort?

A. Temperature of the surrounding air

B. Motion of air


D. None of these

Correct

Q.29) The basic elements of an electric circuit are the following except ____.

A. Source

B. Switch (your answer)

C. Conducting path

D. Electrical load

Correct

Q.30) Cables are conductors that are ____.

A. Larger than wires

B. Stranded (no.6 AWG and larger)


D. None of these

Correct

Q.31) Any pipe which conveys the discharge of water closet, urinal or fixtures having similar function, with or without the discharges from other fixtures to the building drain or building sewer.

A. Soil pipe (your answer)

B. Waste pipe

C. Building drain

D. Building sewer

Correct

Q.32) A kind of return bend of small-sized faucet, one end of which is about one foot long and the other end is about three inches. It is commonly used as a faucet for pantry sink and drinking fountain. Also the lead connection between the service pipe and the water main. Also a p-trap.

A. Spigot

B. Faucet

C. Tailpiece

D. gooseneck (your answer)

Correct

Q.33) What is the minimum distance between the handrails of escalators?

A. 600mm

B. 558mm (your answer)

C. 658mm

D. 650mm

Correct

Q.34) A factory assembly of two or more insulated conductors having an outer sheath of moisture-resistant, flame retardant, non metallic material.

A. Service entrance cable (type SE and USE)

B. Shielded non metallic sheathed cable (type SNM )

C. Non metallic sheathed cable (type NM and NMC) (your answer)

D. Mineral insulated metal sheathed cable (type MI)

Correct

Q.35) A common measure of the probable discharge into the drainage system by various types of plumbing fixtures on the basis of one unit of this being equal to a discarge rate of 7.5 gallons per minute or one cubic foot of water per minute.

A. Flow rate

B. Drainage fixture unit (your answer)

C. Flow pressure

D. Drainage flow

Wrong

Q.36) A circuit type where components are electrically connected end to end.

A. Series circuit (correct answer)

B. Parallel circuit

C. Series parallel circuit (your answer)

D. None of these

Correct

Q.37) A continuous belt (chain) attached to the handrail and directly connected to the steps is known as _____.

A. Endless belt (your answer)

B. Balustrade assembly

C. Sprocket assembly

D. handrail

Correct

Q.38) The recommended speed for escalators ranges from____.

A. 90-120fpm (your answer)

B. 130-180fpm

C. 165-180fpm

D. 60-80fpm

Correct

Q.39) This material is so named in honor of a German physicist, consista of a holllow material with a small hole on one side. This is used to detect individual frequency of complex acoustic wave configuration.

A. Transondent

B. Hermholtz resonator (your answer)

C. Pyramid

D. Panel absorber

Correct

Q.40) Copper as a conductor has the property/properties of being ____.

A. Ductile

B. Malleable

C. A only

D. A and b (your answer)

Documents

Building Utilities