U.S.C.G. Merchant Marine Exam OSV-Assistant … · Choose the best answer to the following Multiple Choice Questions . 1. What is true concerning the installation of batteries used

National Maritime Center Providing Credentials to Mariners

U.S.C.G. Merchant Marine Exam

OSV-Assistant Engineer

Q654 Electrical-Electronics-Control Engineering

(Sample Examination)

Page 1 of 36 Q654 Electrical-Electronics-Control Engineering

8/31/2017

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

Choose the best answer to the following Multiple Choice Questions.

1. What is true concerning the installation of batteries used for diesel engine starting?

• (A) be located as close as possible to the engine o (B) be located in a locker on the weather deck o (C) only be of the nickel alkaline type o (D) have sufficient capacity to provide at least 50 starts consecutively without recharging

If choice A is selected set score to 1.

2. How are AC and DC generators similar?

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

If choice D is selected set score to 1.

3. A signal derived from an amplifier output and returned to the amplifier input is called what type of signal?

o (A) monitoring signal • (B) feedback signal o (C) reverse signal o (D) inverse signal

If choice B is selected set score to 1.

4. When shore power is being connected to a ship in drydock, what must be ensured, assuming that the ship's generators are rated at 450 VAC, 60 Hz with a total capacity of 5000 kW?

o (A) shore power must be capable of delivering a total of 5000 kW o (B) exactly 60 Hz must be supplied from shore, as no tolerance is permitted • (C) shore power phase sequence must agree with that of the ship o (D) exactly 450 volts must be supplied from shore, as no tolerance is permitted

If choice C is selected set score to 1.

5. In a 60 Hz AC system, what is the duration in seconds for one complete cycle?

o (A) 60 sec. o (B) 6 sec. o (C) 1 sec. • (D) 0.016 sec.



8/31/2017

U.S.C.G. Merchant Marine Exam OSV-Assistant Engineer Q654 Electrical-Electronics-Control Engineering Illustrations: 19 6. If the cooling water system is isolated for repairs, but 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.

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


7. In a series circuit, what is the applied voltage (or sum of the applied voltages) equal to?

o (A) the total current divided by the total resistance o (B) the sum of the individual currents multiplied by the number of resistors o (C) the total resistance divided by the total current • (D) the sum of the individual voltage drops


8. What practice could potentially damage a multimeter?

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

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


9. When a self-excited alternator's field has lost its residual magnetism due to a prolonged idle period, it will fail to produce a voltage. Flashing the field is the procedure used to restore the residual magnetism. Using a 12 volt storage battery, how is this performed?

o (A) The S+ and S- leads are disconnected from the alternator stator. The S+ lead is connected to the positive terminal of the battery, and the S- lead is connected to the negative terminal.

o (B) The S+ and S- leads are disconnected from the alternator stator. The S+ lead is connected to the negative terminal of the battery, and the S- lead is connected to the positive terminal.

o (C) The F+ and F- leads are disconnected from the alternator field. The F+ lead is connected to the negative terminal of the battery, and the F- lead is connected to the positive terminal.

• (D) The F+ and F- leads are disconnected from the alternator field. The F+ lead is connected to the positive terminal of the battery, and the F- lead is connected to the negative terminal.



8/31/2017

U.S.C.G. Merchant Marine Exam OSV-Assistant Engineer Q654 Electrical-Electronics-Control Engineering Illustrations: 19 10. What type of motor is used in the AC hoist controller as shown in the illustration? Illustration EL-0102

• (A) wound rotor induction motor o (B) synchronous motor o (C) stepper motor o (D) squirrel-cage induction motor


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

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


12. Using the temperature correction factor for the winding insulation temperature graph shown in the illustration, what would be the correction factor and the corrected temperature to 40 degrees C for a motor with an insulation resistance of 4 megohms measured at 50 degrees C? Illustration EL-0046

o (A) The temperature correction factor is 0.5 and the corrected resistance is 2 megohms at 40 degrees C.

o (B) The temperature correction factor is 0.5 and the corrected resistance is 8 megohms at 40 degrees C.

o (C) The temperature correction factor is 2 and the corrected resistance is 2 megohms at 40 degrees C.

• (D) The temperature correction factor is 2 and the corrected resistance is 8 megohms at 40 degrees C.


13. Which statement is TRUE concerning electric propulsion drives?

• (A) The propeller speed and direction of rotation are easily controllable. o (B) Lower transmission losses compared to other types of propulsion drives. o (C) Inability to be utilized as a source of ships service power. o (D) Lack of flexibility of arrangement between the prime mover and motor.



8/31/2017

U.S.C.G. Merchant Marine Exam OSV-Assistant Engineer Q654 Electrical-Electronics-Control Engineering Illustrations: 19 14. Which of the following illustrated manual motor starters represents the wiring diagram illustrated in

figure "A"? Illustration EL-0023

• (A) 1 o (B) 2 o (C) 3 o (D) 4


15. Referring to the containership one-line distribution diagram shown in the illustration, what statement is 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 and is 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 emergency switchboard and is capable of providing DC charging current to both battery banks simultaneously.

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

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


16. What shipboard system uses the synchronous transmission system?

o (A) Turbocharger RPM indicator system o (B) Shaft revolution indicator system • (C) Rudder angle indicator system o (D) Centrifuge RPM indicator system


17. 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



8/31/2017

U.S.C.G. Merchant Marine Exam OSV-Assistant Engineer Q654 Electrical-Electronics-Control Engineering Illustrations: 19 18. Which of the wave shapes shown in the illustration is termed a sinusoidal wave? Illustration EL-0088

• (A) A o (B) B o (C) C o (D) D


19. As shown in figure "A" of the illustrated propulsion motor variable speed drive, what statement is true? Illustration EL-0140

o (A) both the bridge rectifier and the controller inverter bridge are thyristor controlled in terms of switching

o (B) both the bridge rectifier and the controller inverter bridge are transistor controlled in terms of switching

o (C) the bridge rectifier is uncontrolled and the controller inverter bridge is thyristor controlled in terms of switching

• (D) the bridge rectifier is uncontrolled and the controller inverter bridge is transistor controlled in terms of switching


20. Which of the listed battery charging circuits is used to maintain a wet cell, lead-acid, storage battery in a fully charged state during long periods of disuse?

o (A) Normal charging circuit o (B) High ampere charging circuit o (C) Quick charging circuit • (D) Trickle charging circuit


21. What is the name of the component labeled CR1 as shown in section "D" of the regulated DC power supply illustrated? Illustration EL-0085

o (A) rectifier diode • (B) zener diode o (C) tunnel diode o (D) diac



8/31/2017

U.S.C.G. Merchant Marine Exam OSV-Assistant Engineer Q654 Electrical-Electronics-Control Engineering Illustrations: 19 22. When testing a capacitor with a digital multimeter set up as an ohmmeter, what would be the

indication on the display when testing an initially discharged capacitor in good condition?

• (A) the display would immediately show very low resistance but gradually climb to "OL" o (B) the display would immediately show very low resistance but rapidly climb to a slightly higher

value and remain there o (C) the display would immediately show very low resistance and remain at this value o (D) the display would immediately show "OL" ohms and remain at this value


23. The motor fails to start on an attempted startup. With the start button depressed, a voltmeter reading between 1 and 5, as in figure "A" shown in the illustration, indicates line voltage available to the control circuit, what should be your next step in the troubleshooting process? Illustration EL-0007

• (A) attempt to reset the overload relay and determine the cause of the overload if applicable o (B) test the stop button for continuity and replace if necessary o (C) ensure that the disconnect switch (DS) is closed o (D) test the contactor coil "M" for continuity and replace if necessary


24. As shown in figure "A" of the illustration, with the switch closed what statement is true if "R1" and "R2" have unequal resistance values? Illustration EL-0019

o (A) The energy dissipated in "R1" will be the same as the energy dissipated in "R2". o (B) The voltage drop across "R1" will not be equal to the voltage drop across "R2". o (C) The current flow through "R1" will equal the current flow through "R2". • (D) The current flow through "R1" will differ from the current flow through "R2".


25. What will be the impact of reduced voltage applied to a motor during the starting period?

o (A) increase the starting current and decrease the acceleration time o (B) decrease the starting current and decrease the acceleration time o (C) increase the starting current and increase the acceleration time • (D) decrease the starting current and increase the acceleration time


26. As shown in the illustrated feeder disconnect controller, what statement is true? Illustration EL-0138

• (A) the feeder disconnect contactor remains closed on a loss of power o (B) the feeder disconnect contactor is electrically latched o (C) the feeder disconnect contactor is electrically tripped o (D) the feeder disconnect contactor is mechanically closed



8/31/2017

U.S.C.G. Merchant Marine Exam OSV-Assistant Engineer Q654 Electrical-Electronics-Control Engineering Illustrations: 19 27. Fuses are sometimes placed in series with a thermal trip-type circuit breaker. What is the purpose of

a fuse used in this arrangement?

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


28. What is the purpose of a potential transformer in an electric circuit?

o (A) generate its own electrical power • (B) increase or decrease circuit voltage as required o (C) convert AC current to DC current o (D) transform electrical energy into mechanical energy


29. What is one major advantage of a diesel-electric propulsion plant?

o (A) less maintenance o (B) lower fuel consumption • (C) excellent maneuverability o (D) low cost and weight


30. The arc resulting from the tripping of a circuit breaker is prevented from damaging the contacts. How is this done?

• (A) directing the arc into an arc chute o (B) an inverse timed thermal trip for short circuit currents o (C) instantaneous magnetic trip for overload currents o (D) designing the contacts to open slowly


31. The root mean square (RMS) value of a sine-wave current may also be referred to as what value?

o (A) instantaneous value • (B) effective value o (C) maximum value o (D) average value



8/31/2017

U.S.C.G. Merchant Marine Exam OSV-Assistant Engineer Q654 Electrical-Electronics-Control Engineering Illustrations: 19 32. Which of the following is the only known perfect dielectric for the purpose of serving as electrical

insulation?

o (A) mica o (B) ceramic o (C) glass • (D) vacuum


33. What is the operating function of a cycloconverter (CCV) as a static power converter used in electric propulsion motor drives?

• (A) provides adjustable frequency to power an AC propulsion drive motor o (B) provides constant frequency output power to an AC propulsion drive motor o (C) converts DC power to AC power in an AC propulsion motor o (D) converts AC power to DC power in a DC propulsion drive system


34. What is the circuit shown in the illustration used to measure? Illustration EL-0024

o (A) battery discharge rate in ampere-hours • (B) resistance o (C) gauss or magnetic field strength o (D) capacitance


35. What is the basic similarity between a circuit breaker and a fuse?

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

energized o (D) a circuit breaker and a fuse have no similarities


36. 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) overload lockout o (C) reduced voltage restart o (D) low voltage release



8/31/2017

U.S.C.G. Merchant Marine Exam OSV-Assistant Engineer Q654 Electrical-Electronics-Control Engineering Illustrations: 19 37. Which of the following physical characteristics does a three-phase wound-rotor induction motor

possess that a squirrel-cage induction motor does not?

• (A) Slip rings o (B) A centrifugal switch o (C) Compensating windings o (D) A commutator


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

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


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

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


40. 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.


41. Which of the substances listed should be applied to battery terminals to help prevent corrosion?

o (A) Zinc chromate • (B) Petroleum jelly o (C) Lead hydroxide o (D) Lead peroxide



8/31/2017

U.S.C.G. Merchant Marine Exam OSV-Assistant Engineer Q654 Electrical-Electronics-Control Engineering Illustrations: 19 42. How are operational amplifiers, used primarily in analog circuits, characterized?

o (A) low input impedance, low gain and high output impedance o (B) high input impedance, high gain and high output impedance o (C) low input impedance, high gain and low output impedance • (D) high input impedance, high gain and low output impedance


43. To properly use a clamp-on-type ammeter to check current flow, what must be done FIRST?

o (A) de-energize the circuit to allow connection of the instrument in series o (B) short the test leads and calibrate the instrument to zero o (C) connect the voltage test leads to the appropriate terminals • (D) hook the jaws of the instrument around the insulated single conductor


44. As shown in the illustrated plots of uncorrected and temperature corrected insulation resistance readings for a particular piece of equipment, at what point in time should the equipment have been refurbished or replaced? Illustration EL-0120

o (A) 2006 o (B) 2008 o (C) 2010 • (D) no refurbishment or replacement was necessary through 2011


45. Which of the following statements correctly applies to bipolar junction transistors?

o (A) The emitter separates the base and collector. • (B) The three terminals are called the emitter, base, and collector. o (C) The collector separates the emitter and base. o (D) LED and LCD are the two basic types of transistors.


46. As shown in figure "A" of the illustrated motor nameplate, how much current could the motor safely draw on a continuous basis at sea level without overheating? Illustration EL-0171

o (A) 142 amps o (B) 156 amps o (C) 163 amps • (D) 187 amps



8/31/2017

U.S.C.G. Merchant Marine Exam OSV-Assistant Engineer Q654 Electrical-Electronics-Control Engineering Illustrations: 19 47. What is the functional purpose of the "MS 2" contacts in the hoist controller circuit shown in the

illustration? Illustration EL-0102

o (A) The "MS 2" contacts are used to select for "second point" hoisting and lowering o (B) The "MS 2" contacts are used to select for "first point" hoisting and lowering • (C) The "MS 2" contacts are not used in this particular application o (D) The "MS 2" contacts are used for resetting the under voltage (UV) contactor


48. Which of the following methods should be used to dress the face of silver-plated contacts?

o (A) Knurling with a knurling tool o (B) Filing with a mill file o (C) Burnishing with a burnishing tool • (D) Sanding with 0000 sandpaper


49. What is the measure of the opposition that a magnetic circuit offers to the magnetic lines of force (flux) called?

• (A) reluctance o (B) inductance o (C) resistance o (D) impedance


50. In an impressed current cathodic hull protection system, what statement is true concerning the composition and arrangement of the anodes?

o (A) The protective anodes are made of zinc and are electrically insulated from the hull. o (B) The protective anodes are made of lead or platinized titanium and are electrically bonded

to the hull. • (C) The protective anodes are made of lead or platinized titanium and are electrically insulated

from the hull. o (D) The protective anodes are made of zinc and are electrically bonded to the hull.


51. What is the primary means by which an electrical maintenance worker is protected from electrical hazards while performing work on an electrical circuit?

o (A) shutting down the necessary equipment o (B) using the appropriate personal protective equipment o (C) posting of safety warning signs • (D) performing a lock-out/tag-out procedure



8/31/2017

U.S.C.G. Merchant Marine Exam OSV-Assistant Engineer Q654 Electrical-Electronics-Control Engineering Illustrations: 19 52. Referring to the illustration pertaining to the semi-automatic navigation light panel circuit, assuming

that the transfer switch is in the primary lamp position, in addition to the buzzer sounding, what will be the response of the indicator lamps when the primary lamp of the particular navigation light burns out? Illustration EL-0108

o (A) The indicator lamp in the master section will go OUT The indicator lamp in the effected line section will come ON

• (B) The indicator lamp in the master section will remain ON The indicator lamp in the effected line section will come ON

o (C) The indicator lamp in the master section will go OUT The indicator lamp in the effected line section will go OUT

o (D) The indicator lamp in the master section will remain ON The indicator lamp in the effected line section will go OUT


53. Not only can a synchronous motor drive a load with greater efficiency than an induction motor, a fringe benefit of the synchronous motor is the ability for power factor correction. What statement is true?

o (A) If the overall plant has a lagging power factor, the synchronous motor is over-excited. o (B) If the overall plant has a lagging power factor, the synchronous motor is normally-excited. • (C) If the overall plant has a unity power factor, the synchronous motor is normally-excited. o (D) If the overall plant has a leading power factor, the synchronous motor is under-excited.


54. When a megohmmeter is used to test insulation, what condition causes the gradual rise of the pointer reading as a result of continued cranking?

• (A) the dielectric-absorption effect of the insulation o (B) good conductor resistance o (C) the inductive reactance of the windings o (D) the leakage of current along the surface of dirty insulation


55. 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 CLOSED

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

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

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



8/31/2017

U.S.C.G. Merchant Marine Exam OSV-Assistant Engineer Q654 Electrical-Electronics-Control Engineering Illustrations: 19 56. Assuming that the electrolyte has had sufficient time to be uniformly diffused throughout the cell, if

the open-circuit cell voltage as measured by a digital multimeter is 2.12, what would be the approximate specific gravity?

o (A) 1.260 o (B) 1.270 • (C) 1.280 o (D) 1.290


57. 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)


58. Which of the conditions listed will indicate the need to clean the insulation on the windings of an electric motor?

o (A) Excessive vibration at normal speed. o (B) Sparking at the brushes. • (C) Higher than normal operating temperature. o (D) High megger readings.


59. In a typical fire detection control unit, what would be indicated by an illuminated blue light?

o (A) normal power is on • (B) trouble in the system o (C) fire or smoke detected o (D) backup power is on


60. From the instant of start-up, through the acceleration period, and until the motor reaches rated speed, when is the counter EMF produced in the windings of a DC motor "zero"?

o (A) motor is at rated speed • (B) armature is not yet turning o (C) armature has just begun to turn o (D) motor is almost up to rated speed



8/31/2017

U.S.C.G. Merchant Marine Exam OSV-Assistant Engineer Q654 Electrical-Electronics-Control Engineering Illustrations: 19 61. How will the value of the output frequency change if the load is removed from a turbo-generator

having a governor speed droop setting of 3%?

o (A) It will become variable. • (B) It will increase. o (C) It will decrease by approximately 3%. o (D) It will remain unchanged.


62. In the illustration of the one-line distribution system diagram, if the ship's service generator on line fails, what statement is true concerning the operation 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 main bus through the automatic bus transfer device.

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


63. At a minimum threshold, how many milliamps of current through the body produces a condition where most people would suffer ventricular fibrillation and could only be resuscitated with a ventricular defibrillator?

o (A) 3 to 7 mA o (B) 10 to 16 mA o (C) 30 mA • (D) 75 mA for 5 sec.


64. The torque-speed and current-speed curves for a three-phase induction motor with a squirrel-cage rotor are shown in figures "A" and "B" of the illustration. Which of the following statements is true concerning the depicted curves? Illustration EL-0056

o (A) Rated torque and rated current occur at approximately 20% slip. o (B) The starting current is nearly 1.5 times the normal full load current value. • (C) Starting current is approximately 4.75 times the normal full load current value. o (D) The pull-up point on the torque curve is about 20% of the normal full load torque value.



8/31/2017

U.S.C.G. Merchant Marine Exam OSV-Assistant Engineer Q654 Electrical-Electronics-Control Engineering Illustrations: 19 65. 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?

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


66. In a diesel-electric plant, raising the generator's field excitation current will have what effect on the DC propulsion motor speed?

o (A) effect generator speed only o (B) decrease in speed • (C) increase in speed o (D) effect main motor speed if done in conjunction with higher generator engine speeds


67. Why are nickel-cadmium batteries superior to lead-acid batteries for standby service?

• (A) they are able to hold their charge for long periods of time without recharging o (B) they need fewer cells connected in series for the same voltage and require less mounting

space o (C) they have higher output voltages for the same number of cells and require no maintenance o (D) they have a lower cost of acquisition


68. What are the operational characteristics of the split-phase motor shown in figure "A" of the illustration? Illustration EL-0215

o (A) The motor is reversible and dual-voltage, configured for high volts. o (B) The motor is non-reversible and dual-voltage, configured for low volts. • (C) The motor is reversible and dual-voltage, configured for low volts. o (D) The motor is non-reversible and dual-voltage, configured for high volts.


69. What is the ampere-hour rating of a lead-acid battery that can deliver 20 amperes continuously for 10 hours?

o (A) 20 o (B) 40 • (C) 200 o (D) 400



8/31/2017

U.S.C.G. Merchant Marine Exam OSV-Assistant Engineer Q654 Electrical-Electronics-Control Engineering Illustrations: 19 70. The timer element of a reverse power relay cannot be energized unless what condition is met?

• (A) the power flow is the same as the tripping direction o (B) the movement of the disk is damped by a permanent magnet o (C) the power flow is the opposite to the tripping direction o (D) one generator is fully motorized



8/31/2017


4/21/2015

EL-0007

Adapted for testing purposes only from HARRINGTON, Marine Engineering. © 1992 SNAME. Reproduced with permission from The Society of Naval Architects and Marine Engineers. Further

reproduction prohibited without permission. Page 18 of 36

Q654 Electrical-Electronics-Control Engineering


2/25/2015

Adapted for testing purposes only from HUNT, Modern Marine Engineer’s Manual, Vol. II. © 2002 Cornell Maritime Press. Reproduced with permission from Cornell Maritime Press, a

division of Schiffer Publishing, Ltd.

Further reproduction prohibited without permission.

EL-0014



6/1/2016

EL-0019

Adapted for testing purposes only Further reproduction prohibited without permission.



3/9/2015

Adapted for testing purposes only from ROSENBURG/HAND. Electric Motor Repair. © 2002 Delmar Learning, a part of Cengage Learning, Inc. Reproduced with permission.

www.cengage.com/permissions


EL-0023



6/1/2016

EL-0024




3/9/2015

Adapted for testing purposes only from HALL, Practical Marine Electrical Knowledge, 2E. © 2003 Dennis T. Hall. Reproduced with permission from Witherby Publishing Group, LTD.


EL-0037



3/9/2015

Adapted for testing purposes only from HUBERT, Operating, Testing and Preventive Maintenance of Electrical Power Apparatus. © 2003 Pearson Education. Reproduced with permission from

Pearson Education, Inc. Further reproduction prohibited without permission.

EL-0046



3/30/2015

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

of Electrical Power Apparatus. © 2003 Pearson Education. Reproduced with permission

from Pearson Education, Inc. Further reproduction prohibited without permission.

EL-0056



6/2/2016

EL-0085




6/2/2016

EL-0088




4/13/2015



EL-0102



4/13/2015

Adapted for testing purposes only from HUNT, Modern Marine Engineer’s Manual, Vol. II. © 2002 Cornell Maritime Press. Reproduced with permission from Cornell Maritime Press, a

division of Schiffer Publishing, Ltd.


EL-0108



4/20/2015

Adapted for testing purposes only from SMITH, Modern Marine Electricity and Electronics. © 1966 Cornell Maritime Press. Reproduced with permission from Cornell Maritime Press,

a division of Schiffer Publishing, Ltd.


EL-0119



4/20/2015



EL-0120



5/29/2015

Adapted for testing purposes only from MILLER/MILLER, Industrial Electricity and Motor Controls. © 2008 McGraw-Hill. Reproduced with permission from Allen-Bradley Co.


EL-0138



4/27/2015

Adapted for testing purposes only from HALL, Practical Marine Electrical Knowledge, 2E. © 2003 Dennis T. Hall. Reproduced with permission from Witherby Publishing Group, LTD.


EL-0140



6/2/2016

EL-0171




5/18/2015

Adapted for testing purposes only from HUBERT, Operating, Testing and Preventive Maintenance of Electrical Power Apparatus. © 2003 Pearson Education

Reproduced with permission from Pearson Education, Inc. Further reproduction prohibited without permission.

EL-0215



5/26/2015

Figures A and B Adapted for testing purposes only from HERMAN, Industrial Motor Control

© 2010 Delmar Learning, a part of Cengage Learning, Inc. Reproduced with permission.

www.cengage.com/permissions


EL-0227


Documents

U.S.C.G. Merchant Marine Exam OSV-Assistant … · Choose the best answer to the following Multiple Choice Questions . 1. What is true concerning the installation of batteries used