U.S.C.G. Merchant Marine Exam Assistant Engineer – OSV ... · Q654 Electrical-Electronics-Control Engineering U.S.C.G. Merchant Marine Exam Assistant Engineer-OSV Illustrations:

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U.S.C.G. Merchant Marine Exam

Assistant Engineer – OSV

Q654 Electrical-Electronics-Control Engineering

(Sample Examination)

Page 1 of 38 Q654 Electrical-Electronics-Control Engineering

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Q654 Electrical-Electronics-Control Engineering U.S.C.G. Merchant Marine Exam Assistant Engineer-OSV Illustrations: 19

Choose the best answer to the following Multiple Choice Questions

1. In the flow of one cycle of single phase alternating current past any given point in a circuit, how many times will the current peak to a positive or a negative maximum value?

o (A) one time • (B) two times o (C) three times o (D) four times

If choice B is selected set score to 1.

2. For the purpose of calculating line current, which of the following procedures should be used to determine the total line current of a three-phase, delta wound, AC generator?

• (A) Multiply the amperage in one phase by the square root of three. o (B) Divide the total amperage in all phases by three. o (C) Divide the total amperage in all phases by the square root of three. o (D) Multiply the amperage in one phase by three.

If choice A is selected set score to 1.

3. Four incandescent lamps are connected in series in a single circuit. If one of the lamp filaments burns out, what will happen to the other lamps?

• (A) all go out o (B) become dimmer o (C) no change in brightness o (D) become brighter


4. Which statement is true concerning the total power consumed in a parallel circuit?

o (A) The total power is the sum of the powers consumed by each load (resistor) divided by the number of loads.

o (B) The total power is always less than the power consumed by the smallest load. o (C) The total power is never more than the power consumed by the largest load. • (D) The total power is equal to the sum of the powers consumed by each individual load.

If choice D is selected set score to 1.


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5. How is the power dissipated as heat in a simple direct current circuit consisting of one resistive load calculated?

o (A) P/R • (B) I2R o (C) (IR)/T o (D) E/I


6. Periodic testing using a special sensing device may be performed to detect potentially dangerous loose or corroded bus bar and controller connections. What is the name of this testing technology?

o (A) electric vibro-analysis o (B) visual pyrotronics • (C) infra-red thermography o (D) corrosion electrolysis

If choice C is selected set score to 1.

7. (What practice could potentially damage a multimeter?

o (A) placing the test leads across a de-energized and isolated resistance to measure resistance while in the voltmeter mode

• (B) placing the test leads across a voltage source to measure voltage while in the resistance mode

o (C) placing the test leads across a de-energized and isolated resistance to measure resistance while in the ammeter mode

o (D) placing the test leads in series with the load of a circuit to measure current while in the voltmeter mode


8. What is an ammeter used to measure?

o (A) continuity • (B) current o (C) resistance o (D) voltage



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9. If a digital multimeter set up to measure AC volts reads low value, but constantly changing "ghost voltages" when its leads are disconnected, what does this indicate?

o (A) Stray electromagnetic fields from electrical equipment exist in the air. o (B) The digital multimeter test leads are acting as an antenna. o (C) The digital multimeter AC voltage range is at its lowest value. • (D) All the above conditions must exist.


10. To keep emergency lead-acid batteries in a full state of charge for emergency use, what is normally done?

o (A) Batteries are kept charged by performing an equalizing charge daily. • (B) Batteries are kept charged by maintaining a continuous trickle charge. o (C) Batteries are kept charged by maintaining the maximum charging rate. o (D) Batteries are kept charged by cycling through discharge and charge cycles daily.


11. What type of rotor is most commonly used in the split-phase family of single phase induction motors?

o (A) Cylindrical rotor • (B) Squirrel cage rotor o (C) Wound rotor o (D) Salient pole rotor


12. Which of the following motors has a frame configuration for solid base mounting only? Illustration EL-0184

• (A) A o (B) B o (C) C o (D) D


13. Which of the illustrated motors has an open, drip-proof (ODP) motor enclosure? Illustration EL-0001

o (A) A o (B) B • (C) C o (D) D



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Q654 Electrical-Electronics-Control Engineering U.S.C.G. Merchant Marine Exam Assistant Engineer-OSV Illustrations: 19 14. What is the characteristic of a wound-rotor induction motor, with a high resistance inserted in series

with the rotor winding at startup?

o (A) relatively high starting torque and high stator current o (B) relatively low starting torque and high stator current o (C) relatively low starting torque and low stator current • (D) relatively high starting torque and low stator current


15. What is the primary advantage of stranded cable over solid cable which establishes the basis for the requirement for stranded cable for shipboard applications?

o (A) limits the number of supports needed for a horizontal overhead run o (B) reduces the overall weight of the cable run • (C) provides the flexibility required for easy handling and installation o (D) reduces the resistance to current flow for a given wire size


16. In preparing a battery-operated digital megohmmeter (resistance tester) for use, what statement is true?

o (A) The circuit or circuit component under test must be energized, AND the megohmmeter test voltage must be set to a value less than the equipment exposure voltage.

o (B) The circuit or circuit component under test must be de-energized, AND the megohmmeter test voltage must be set to a value less than the equipment exposure voltage.

• (C) The circuit or circuit component under test must be de-energized, AND the megohmmeter test voltage must be set to a value equal to or greater than the equipment exposure voltage.

o (D) The circuit or circuit component under test must be energized, AND the megohmmeter test voltage must be set to a value equal to or greater than the equipment exposure voltage.


17. The leads from an ohmmeter are attached to the leads of the opposite ends of an AC induction motor stator coil. If a reading of infinity (OL) is obtained, what does this indicate?

o (A) shunted stator coil • (B) open stator coil o (C) grounded stator coil o (D) shorted stator coil



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18. Grounds occurring in electrical machinery as a result of insulation failure may result from deterioration over time and excessive heat. What could be another contributing cause?

o (A) extended periods of operation at low ambient temperature • (B) extended periods of vibration o (C) extended operation at normal loads o (D) extended periods of operation at low load


19. As shown in figure "B" of the typical ground fault relay shown in the illustration, what statement concerning the leakage current setting adjustment is true? Illustration EL-0223

• (A) Setting the leakage current for too low a value may increase the likelihood of nuisance trips and setting the leakage current for too high a value may result in incidental damage due to a ground fault.

o (B) Setting the leakage current for too high a value may increase the likelihood of nuisance trips and setting the leakage current for too low a value may result in incidental damage due to a ground fault.

o (C) Setting the leakage current for too high or too low a value may increase the likelihood of nuisance trips.

o (D) Setting the leakage current for too high or too low a value may result in incidental damage due to a ground fault.


20. If the cooling water system is isolated for repairs, but in an operational emergency, it is still desirable to run the alternator pictured in figure "A" of the illustration, what must be done? Illustration EL-0037

o (A) The emergency air inlet panel and air outlet doors must remain closed, which requires the alternator to be run only at reduced loads.

o (B) The emergency air inlet panel and air outlet doors must be opened, but in doing so allows the alternator to be run at rated load.

• (C) The emergency air inlet panel and air outlet doors must be opened and only then can the alternator be run, but at reduced load.

o (D) The alternator may not be run without cooling water under any circumstances.


21. Three 12 volt, lead-acid, batteries connected in series will develop how many volts?

o (A) 12 volts o (B) 24 volts • (C) 36 volts o (D) 48 volts



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Q654 Electrical-Electronics-Control Engineering U.S.C.G. Merchant Marine Exam Assistant Engineer-OSV Illustrations: 19 22. As shown in the illustration, the wet cell storage batteries are connected in what configuration?

Illustration EL-0071

• (A) series o (B) parallel o (C) compound o (D) tandem


23. What is the most reliable and preferred method for determining the state of charge of a wet cell NiCad battery while it is being charged?

o (A) Measuring the specific gravity of each cell with a hydrometer. o (B) Measuring the battery voltage with a solenoid type voltage tester. • (C) Measuring the battery voltage with a digital voltmeter. o (D) Measuring the temperature corrected specific gravity of each cell with a hydrometer and

thermometer.


24. Which of the listed motors will operate at the highest RPM, assuming that each operates at the same frequency?

• (A) A four-pole synchronous motor under normal load. o (B) A four-pole induction motor under no load. o (C) A six-pole synchronous motor under normal load. o (D) A six-pole induction motor under full load.


25. As shown in figure "B" of the illustration, what does the M-G set's three-phase drive motor mechanically drive? Illustration EL-0101

o (A) the DC generator field o (B) the DC motor armature • (C) the DC generator armature o (D) the field rectifier



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26. Referring to the illustration of a steering gear hydraulic power unit motor controller, if the motor is drawing current no greater than full load current, what will the status of the overload relay contacts and the control relay contacts be? Illustration EL-0119

o (A) The overload relay contacts will be OPEN The control relay contacts will be OPEN

o (B) The overload relay contacts will be OPEN The control relay contacts will be CLOSED

• (C) The overload relay contacts will be CLOSED The control relay contacts will be OPEN

o (D) The overload relay contacts will be CLOSED The control relay contacts will be CLOSED


27. What is the name of the type of motor control circuit that will not permit automatic restarting after power is restored, following a power failure?

• (A) low voltage protection o (B) reduced voltage restart o (C) overload lockout o (D) low voltage release


28. Which of the following statements represents the main difference between an electromagnetic relay and an electromagnetic contactor as used in motor control and power circuits?

o (A) A relay is series connected and a contactor is parallel connected. o (B) Contactors control current and relays control voltage. • (C) Contactor contacts can handle heavier loads than relay contacts. o (D) Contactor contacts are made from silver and relay contacts are made from copper.



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29. As shown in the illustrated one-line diagram of a two-tiered emergency power system for a passenger ship, what statement is true? Illustration EL-0166

o (A) On a loss of normal ship's power, the "Final Emergency Loads" power source is battery (from AC/DC UPS "B"), whereas the "Temporary Emergency Loads" power source is the emergency generator.

• (B) On a loss of normal ship's power, the "Temporary Emergency Loads" power source is battery (from AC/DC UPS "B"), whereas the "Final Emergency Loads" power source is the emergency generator.

o (C) On a loss of normal ship's power, the "Temporary Emergency Loads" power source is battery (from AC/DC UPS "A"), whereas the "Final Emergency Loads" power source is the emergency generator.

o (D) On a loss of normal ship's power, the "Final Emergency Loads" power source is battery (from AC/DC UPS "A"), whereas the "Temporary Emergency Loads" power source is the emergency generator.


30. Contact with any energized electrical system conductor is potentially hazardous and precautions should be taken to prevent exposure. With all other factors considered equal (such as voltage, conducting path through the body and the duration of contact), contact with an energized electrical system conductor of which system type would produce the most damaging effect?

o (A) DC systems • (B) 60 Hz AC systems o (C) 10 kHz AC systems o (D) All the above systems would be equally as damaging


31. Which of the following voltage testers would be associated with high quality, be safe to use, and minimize the electric shock hazard?

o (A) a voltage tester with a low input impedance and a lower voltage rating than any expected measured voltages

o (B) a voltage tester with a low input impedance and a higher voltage rating than any expected measured voltages

o (C) a voltage tester with a high input impedance and a lower voltage rating than any expected measured voltages

• (D) a voltage tester with a high input impedance and a voltage rating higher than any expected measured voltages



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32. At a minimum threshold, how many milliamps of current through the body produces a painful sensation that most people would perceive as an electric shock?

• (A) 3 to 7 mA o (B) 10 to 16 mA o (C) 30 mA o (D) 100 mA for 2.5 sec.


33. If a three-phase motor controlled by the control circuit illustrated in figure "B" of the illustration is running in the forward direction, which of the following sequences must occur before the motor will reverse rotation assuming that the stop button is depressed first? Illustration EL-0011

o (A) Next, the normally open 'F' contacts must re-close, and finally the reverse start button must be depressed.

o (B) Next, the normally open 'F' contacts must re-open, and finally the reverse start button must be depressed.

o (C) Next, the normally closed 'F' contacts must re-open, and finally the reverse start button must be depressed.

• (D) Next, the normally closed 'F' contacts must re-close, and finally the reverse start button must be depressed.


34. How are AC and DC generators similar?

• (A) They both internally generate alternating current voltages. o (B) They both rectify the current before delivery. o (C) They both internally produce three-phase power. o (D) They are both constructed at the same physical size for the same kilowatt rating.


35. When shore power is being connected to a ship in dry-dock, what must be ensured, assuming that the ship's generators are rated at 450 VAC, 60 Hz with a total plant generating capacity of 10000 kW?

o (A) exactly 60 Hz must be supplied from shore, with no deviation permitted o (B) exactly 450 volts must be supplied from shore, with no deviation permitted • (C) shore power phase sequence must agree with that of the ship o (D) shore power must be capable of delivering a total of 10000 kW



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Q654 Electrical-Electronics-Control Engineering U.S.C.G. Merchant Marine Exam Assistant Engineer-OSV Illustrations: 19 36. From the information given in the illustration, which of the following statements is correct? Illustration

EL-0106

• (A) During normal operation, the main-emergency bus-tie circuit breaker and any on-line ship's service generator circuit breakers are simultaneously closed.

o (B) It is possible for the main-emergency bus-tie circuit breaker and the emergency generator circuit breaker to be simultaneously closed.

o (C) The emergency generator is capable of being connected directly to the main 480 VAC bus. o (D) Shore power, in port, is only capable of feeding emergency loads.


37. In terms of propulsion generator type, power conditioning schemes, and propulsion motor type, what combination of equipment is included in modern AC-DC SCR rectified DC propulsion drive systems?

o (A) propulsion generators which produce AC power that is directly delivered to the synchronous AC propulsion motor

o (B) propulsion generators which produce DC power that is directly delivered to the shunt-wound DC propulsion motor

o (C) propulsion generators which produce DC power that is converted to AC power for the asynchronous (induction) AC propulsion motor

• (D) propulsion generators which produce AC power that is converted to DC power for the separately excited DC propulsion motor


38. How are fuses usually rated?

o (A) watts only o (B) amps only o (C) volts and amps only • (D) volts, amps, and interrupting capacity


39. A common type of molded case circuit breaker has both thermal and magnetic trip elements. If a branch circuit breaker has only thermal or magnetic trip elements (but not both), it is common to use multiple series-connected protective devices to provide both short-circuit and overload protection. If a motor branch circuit is protected with both a thermal trip-type circuit breaker and fuses, what is the protective purpose of the fuses used in this arrangement?

• (A) short-circuit protection o (B) sustained overload protection o (C) short duration surge protection o (D) time-delay protection



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Q654 Electrical-Electronics-Control Engineering U.S.C.G. Merchant Marine Exam Assistant Engineer-OSV Illustrations: 19 40. What is the basic similarity between a circuit breaker and a fuse?

o (A) after a short or overload condition, both must be reset to re-energize the circuit o (B) after a short or overload condition, both have to be replaced before the circuit can be re-

energized • (C) after a short or overload condition, both should open to de-energize the circuit o (D) a circuit breaker and a fuse have no similarities


41. Referring to the illustration, what is the position of the three circuit breakers labeled in figure A, B, and C respectively? Illustration EL-0033

o (A) Circuit breaker in figure A is in the ON position. Circuit breaker in figure B is in the OFF position. Circuit breaker in figure C is in the TRIPPED position.

• (B) Circuit breaker in figure A is in the OFF position. Circuit breaker in figure B is in the ON position. Circuit breaker in figure C is in the TRIPPED position.

o (C) Circuit breaker in figure A is in the ON position. Circuit breaker in figure B is in the TRIPPED position. Circuit breaker in figure C is in the OFF position.

o (D) Circuit breaker in figure A is in the OFF position. Circuit breaker in figure B is in the TRIPPED position. Circuit breaker in figure C is in the ON position.


42. The transformer diagram shown in figure "B" of the illustration represents what type of transformer? Illustration EL-0082

o (A) open delta transformer o (B) Scott-connected transformer o (C) autotransformer • (D) step-down transformer with dual voltage secondary


43. In consideration of what a wattmeter is designed to measure, how would a wattmeter be electrically connected in a circuit?

o (A) In series o (B) In parallel • (C) In series-parallel o (D) Inductively



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44. Which of the substances listed can be used to shield sensitive equipment from static magnetic fields?

• (A) Iron o (B) Mica o (C) Bakelite o (D) Glass


45. The multiplier prefix "giga" (G) such as used in "gigabytes" represents what multiplication factor?

o (A) thousand (10 to the 3rd power) o (B) million (10 to the 6th power) • (C) billion (10 to the 9th power) o (D) trillion (10 to the 12th power)


46. What does the symbol in figure "1" shown in the illustration represent? Illustration EL-0065

• (A) PNP bipolar junction transistor o (B) silicon controller rectifier o (C) junction field effect transistor o (D) NPN bipolar junction transistor


47. A silicon controlled rectifier (SCR) is a solid state device used for what functional purpose?

• (A) triggering the operation of a switching function o (B) automatic impedance matching function o (C) attenuating of voltage, current, and/or power o (D) amplifying voltage, current, and/or power


48. Assuming a 120 VAC input across TP1 and TP2 and a regulated output of 24 VDC across TP5 and ground, in which section of the 24 VDC power supply circuit illustrated does the greatest absolute change in voltage level take place? Illustration EL-0085

• (A) A o (B) B o (C) C o (D) D



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Q654 Electrical-Electronics-Control Engineering U.S.C.G. Merchant Marine Exam Assistant Engineer-OSV Illustrations: 19 49. In referring to the frequency response filters shown in the illustration, what determines the band pass

or band stop frequencies as appropriate? Illustration EL-0078

o (A) The value of the total load resistance o (B) The value of the RC time constant • (C) The value of the resonant frequencies associated with L and C o (D) The magnitude of the incoming voltage


50. As shown in all four diagrams included in the illustration, what type of logic circuit is represented? Illustration EL-0227

o (A) AND gate • (B) OR gate o (C) NAND gate o (D) NOR gate


51. Which of the listed temperature measuring devices installed on a large turbo-electric alternating current propulsion generator would be the most reliable for monitoring generator temperatures to avoid premature winding insulation failure?

• (A) Temperature sensors inserted in the stator slots for measuring stator winding temperature. o (B) Temperature sensors measuring the temperature of the cooling water associated with the

generator air cooler. o (C) Temperature sensors measuring the temperature of the cooling air associated with the

generator air cooler. o (D) Current transformers are the most reliable means of monitoring generator temperatures.


52. Ships requiring extremely rapid maneuvering response using propeller shaft speed and direction as the sole means of controlling propeller thrust are most likely to use what type of drive system?

o (A) Steam turbine geared drive • (B) Diesel-electric drive o (C) Direct or geared diesel drive o (D) Gas turbine geared drive



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53. As shown in the illustration, if the port propulsion motor field excitation circuit experienced a failure of an individual component, of the following listed field excitation circuit components, the failure of which component would allow the use of the standby excitation transformer and field controller to resume normal operation? Illustration EL-0164

o (A) port motor field winding o (B) port rotary transformer • (C) port field controller o (D) port rotating rectifier


54. The propulsion motor most often utilized in an AC drive system operating in the moderate to high power range is of what type?

o (A) squirrel-cage induction type o (B) wound rotor induction type • (C) synchronous type with wound field o (D) split-phase induction type


55. By what means is a synchronous motor started and brought nearly to synchronous speed?

o (A) By the use of interpoles, also known as commutating poles. o (B) By the use of starting capacitors, also known as condensers. • (C) By the use of a squirrel-cage induction winding, also called an amortisseur winding. o (D) By the use of compensating windings, also known as starting windings.


56. Which of the following fixed temperature heat-actuated fire detectors can be reused after it has detected a fire?

o (A) liquid expansion o (B) thermostatic cable • (C) bimetallic snap-disc o (D) fusible metal



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57. A bearing temperature monitoring system such as that used for measuring selected propulsion plant bearings uses what technology?

o (A) self-powered thermocouples (TC) o (B) self-powered resistance temperature detectors (RTD) o (C) externally powered thermocouples (TC) • (D) externally powered resistance temperature detectors (RTD)


58. Referring to the illustration pertaining to the semi-automatic navigation light panel circuit, if the buzzer sounds and the masthead indicator light comes on, what statement is true concerning acknowledging and responding to the alarm while minimizing the danger to navigation? Illustration EL-0108

o (A) The buzzer is immediately silenced by turning the master switch in the master section off. The masthead light can only be illuminated by replacing the burned out bulb.

• (B) The buzzer is immediately silenced by turning the masthead transfer switch in the line section to the secondary lamp position. The masthead light will then immediately illuminate.

o (C) The buzzer is immediately silenced by turning the masthead transfer switch in the line section off. The masthead light can only be illuminated by replacing the burned out bulb.

o (D) The buzzer cannot be silenced and the masthead light cannot be illuminated until the burned out masthead lamp is replaced.


59. What may happen if the CAPAC system is not turned on when underway?

o (A) The paint film may be damaged. o (B) More fouling may occur on the ship's hull. • (C) Hull corrosion may occur at an accelerated rate. o (D) All of the above.


60. When the control handle is in the "off" position, what is the status of the solenoid actuated brake of an electric winch?

o (A) energized and the brake is released • (B) de-energized and the brake is set by a spring o (C) energized and the brake is set by a spring o (D) de-energized and the brake is released



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61. In the event of a power failure during cargo loading operations, the movement of an electric powered cargo winch will be stopped by what means?

o (A) the weight of the load on the boom • (B) a spring set brake o (C) a hand-operated band brake o (D) a manual override switch


62. What is the best method of determining the state of charge of a flooded lead-acid storage battery?

• (A) specific gravity of the electrolyte o (B) total cell voltages o (C) ampere-hour capacity of the battery o (D) testing of the individual cell voltages


63. What statement is true concerning the charging of a 100 amp-hour lead-acid battery?

• (A) The initial charging rate should be no greater than 100% of the battery amp-hour rating. o (B) The temperature of the electrolyte should not be allowed to exceed 90°F. o (C) The charging rate should be 100 amps for one hour. o (D) The source of power for charging should be 2.0 volts per cell.


64. What would be the indication of a grounded switch or cable as measured by a megohmmeter?

o (A) being unsteady in the high range o (B) infinity o (C) being unsteady in the low range • (D) "zero"


65. What should be included in the routine periodic maintenance checks for electrical motors?

• (A) checking for vibration o (B) checking for watertight integrity o (C) checking for reactive power o (D) checking for speed droop



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66. Why are electric strip heaters used in motor controllers?

o (A) prevent freezing of movable contactso (B) minimize resistance in internal circuitso (C) keep the components at their design ambient temperature• (D) prevent condensation of moisture


67. When you are making a high potential test (insulation resistance) on the motor coils of repairedelectrical machinery to ground, what would a low resistance reading indicate?

o (A) good insulation• (B) bad insulationo (C) high insulation power factoro (D) a high slot discharge factor


68. What is a useful instrument for checking 3-phase AC motor performance by measuring possibleunbalanced currents?

o (A) hand or battery-operated meggero (B) vibrating-reed frequency metero (C) D'Arsonval iron-vane probe• (D) clamp-on ammeter


69. Referring to the containership one-line distribution diagram shown in the illustration, what statementis true concerning the battery charger? Illustration EL-0014

o (A) The battery charger gets its AC power from the 120 VAC section of the main switchboard andis capable of providing DC charging current to both battery banks simultaneously.

o (B) The battery charger gets its AC power from the 120 VAC section of the emergencyswitchboard and is capable of providing DC charging current to both battery bankssimultaneously.

• (C) The battery charger gets its AC power from the 120 VAC section of theemergency switchboard and is capable of providing DC charging current to only one battery bankat a given time.

o (D) The battery charger gets its AC power from the 120 VAC section of the main switchboard andis capable of providing DC charging current to only one battery bank at a given time.



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70. In the illustration of the one-line distribution system diagram, if at sea the 450 VAC section of themain switchboard experiences a complete loss of power, what statement is true concerning theoperation of the emergency diesel-generator? Illustration EL-0014

o (A) It will automatically start and automatically supply power to the 450 VAC section of the mainbus through the automatic bus transfer device.

• (B) It will automatically start and automatically supply power to the 450 VAC section of theemergency bus through the automatic bus transfer device.

o (C) It will automatically start but the automatic bus transfer device must be manually shifted to"Emergency Power" to supply the 450 VAC section of the emergency bus.

o (D) It must be manually started but once running will automatically supply power to the 450 VACsection of the emergency bus through the automatic bus transfer device.



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National Maritime Center

Serving Our Nation’s Mariners

10/5/2018

EL-0001

Adapted for testing purposes only from MAZUR, Troubleshooting

Electric Motors, Fourth Edition

Copyright © 2010 by American Technical Publishers, Inc.

Further reproduction prohibited without permission Page 20 of 38 Q654 Electrical-Electronics-Control Engineering



10/5/2018

EL-0011

Figure A

Adapted for testing purposes only from HUBERT,

Operating, Testing, and Preventive Maintenance of

Electrical Power Apparatus

Copyright © 2003 by Pearson Education, Inc.

Further reproduction prohibited without permission

Figure B

Adapted for testing purposes only from ROSENBERG,

Electric Motor Repair, Third Edition

Copyright © 2002 by Delmar Learning





10/5/2018

EL-0014

Adapted for testing purposes only from HUNT, Modern Marine Engineer’s Manual,

Volume II, Third Edition

Copyright © 2002 by Cornell Maritime Press, Inc.




10/5/2018

EL-0033

Adapted for testing purposes only from HUBERT, Operating, Testing and Preventive

Maintenance of Electrical Power Apparatus

Copyright © 2003 Pearson Education




10/5/2018

EL-0037

Adapted for testing purposes only from HALL, Practical Marine

Electrical Knowledge, Second Edition

Copyright © 1999 by Dennis T. Hall




10/5/2018

EL-0065

Adapted for testing purposes only from GROB, Basic Electronics, 4th Edition

Copyright © 1977 by The McGraw-Hill Companies, Inc.





10/5/2018

EL-0071

Adapted for testing purposes only


Page 26 of 38




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EL-0078

Adapted for testing purposes only from GROB, Basic Electronics, 4th Edition

Copyright © 1977 by McGraw-Hill Inc.


Page 27 of 38




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EL-0082

Adapted for testing purposes only from HUBERT, Operating, Testing, and Preventive

Maintenance of Electrical Power Apparatus

Copyright © 2003 by Pearson Education, Inc.


Page 28 of 38




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EL-0085

Adapted for testing purposes only from Introduction to Solid-State Devices and

Power Supplies Training Series, Module 7

NAVEDTRA 14179


Page 29 of 38




10/9/2018

EL-0101

Adapted for testing purposes only from HALL, Practical Marine Electrical Knowledge, 3rd Edition



Page 30 of 38




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EL-0106 One Line Distribution Diagram

Adapted for testing purposes only from HARRINGTON, Marine Engineering

Copyright © 1992 by The Society of Naval Architects and Marine Engineers


Page 31 of 38




5/16/2019

EL-0108

Adapted for testing purposes only from HUNT, Modern Marine Engineer’s Manual, Volume II, 3rd Edition





10/9/2018

EL-0119

Adapted for testing purposes only from SMITH, Modern Marine Electricity and Electronics





10/10/2018

EL-0164

Adapted for testing purposes only from HALL, Practical Marine Electrical Knowledge, 3rd Edition



Page 34 of 38




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EL-0166

Adapted for testing purposes only from HARRINGTON, Marine Engineering

Copyright © 1992 by The Society of Naval Architects and Marine Engineers


Page 35 of 38




10/10/2018

EL-0184

Adapted for testing purposes only Further reproduction prohibited without permission




10/11/2018

EL-0223

Figure A: Adapted for testing purposes only from

MILLER, Industrial Electricity and Motor Controls

Copyright © 2008 by The McGraw-Hill Companies, Inc. Further reproduction prohibited without permission




10/11/2018

EL-0227 Relay and PLC Logic Compared

Fig. A and B: Adapted for testing purposes only from

HERMAN, Industrial Motor Control, 6th Edition

Copyright © 2010 by Delmar, Cengage Learning


Fig. C and D: Adapted for testing purposes only from

BOLTON, Programmable Logic Controllers, 5th Edition

Copyright © 2009 by Elsevier Ltd.



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