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1. Which of the following statements will affect the capacities value of a capacitor?

 
 
 
 

2. When applying the left-hand rule generators, your forefinger will point to the __.

 
 
 
 

3. This is developed whenever there is a relative motion of action between a magnetic field and a conductor. It is called___.

 
 
 
 

4. When applying the left-hand rule for generators, your middle finger will point to the____.

 
 
 
 

5. Depending in their atomic structure, different material have different quantities of free electrons. Therefore, the various conductors used in electrical applications have different value of___.

 
 
 
 

6. Assume that a 208 volt is applied to the autotransformer and there is a 10.4 resistive load connected to the secondary winding of the transformer. The output voltage of the secondary winding is 104 volts. The load current should be__.

 
 
 
 

7. In an electrical circuit, the resistance unit of measure is specified in___.

 
 
 
 

8. Which of the following electronic component can store electrical energy?

 
 
 
 

9. The direction of rotation of an induction motor is___________.

 
 
 
 

10. The number of cells in 12-volt lead acid battery is__________.

 
 
 
 

11. The part of the shipboard electrical system used to control the distribution of power to the branch circuit.

 
 
 
 

12. Handled phase sequence indicators are useful when____.

 
 
 
 

13. In a 15 horse power induction-type motor with a cage rotor. The current required at stand still to produce starting torque is approximately___.

 
 
 
 

14. The simplest methods of controlling the terminal voltage compound wound DC generators is with a _____.

 
 
 
 

15. Motor controllers or starter contacts may become pitted and welded together if the contacts is _____________.

 
 
 
 

16. As load is added to an AC generator provided with constant field excitation, the prime mover slow down with the effect of ___.

 
 
 
 

17. The governor control switch of an alternator is moved to the raise position. This action will____.

 
 
 
 

18. Which of the following will happen to the alternator frequency if the load is removed from a turbo generator whose governor has 3% speed droop?

 
 
 
 

19. When the operating handle of a molded case circuit breaker is in the mid-position, it indicated that the circuit breaker is___.

 
 
 
 

20. When the voltage remains constant and the resistance is increased in a series circuit, the flow of current___.

 
 
 
 

21. Nickel-Cadmium batteries are superior to lead-acid discharge rates because they___.

 
 
 
 

22. When power is restored after a complete power failure, a steering gear pump will__.

 
 
 
 

23. Basic electrical motor action depends on___.

 
 
 
 

24. As load is added to a shunt motor, the motor will_______.

 
 
 
 

25. When the ship board electrical distribution circuit are connected in parallel, additional parallel circuits will cause the total circuit resistance to___.

 
 
 
 

26. When the voltage and current developed in an AC circuit reach their peak value at the same time, the power factor is___.

 
 
 
 

27. What type of electric motor is commonly used to start small auxiliary diesel engines?

 
 
 
 

28. Electrostatic forces in the high voltage circuits cause indicating instrument to give ____.

 
 
 
 

29. The voltage of the battery is equal to _____________.

 
 
 
 

30. How many 1.5 volt batteries are required to supply a load of 12 volts if the batteries are connected in series?

 
 
 
 

31. Three 12 volt storage batteries connected in parallel will give a total voltage of _____.

 
 
 
 

32. On a DC generator, where is the pigtail located?

 
 
 
 

33. If the DC generator was rotated in the wrong direction, it would fail to up to voltage because the__.

 
 
 
 

34. A generator operates on the principle that___.

 
 
 
 

35. What is the overall result of increasing the load on the secondary the transformer?

 
 
 
 

36. A horseshoe magnet has___.

 
 
 
 

37. In DC circuits, power expressed as the product of____.

 
 
 
 

38. When paralleling two alternators, the synchroscope pointer approaches 0 degree position. This indicates that the alternator frequencies are ______.

 
 
 
 

39. The characteristic of an electrical circuit that opposes the starting, stopping, or changing of current flow is called a/an _

 
 
 
 

40. The following is a device that transfers electrical energy from one circuit to another by electromagnetic induction

 
 
 
 

41. The heat dissipating capability of a resistor is measured in _________.

 
 
 
 

42. The open circuit voltage of a fully charged lead-acid battery cell is ____.

 
 
 
 

43. When placed in a magnetic field, which of the following materials listed will maintain the highest permeability?

 
 
 
 

44. On AC vessels, which of the following statements represents the most difficult problem involved in obtaining a DC potential suitable for use by computer components?

 
 
 
 

45. The voltage output of an AC generator is accurately controlled by _______.

 
 
 
 

46. Frequency of an operating alternator is controlled by the _______.

 
 
 
 

47. If the specific gravity of a 12-volt battery at 80 degrees Fahrenheit is 1.225, the battery is:

 
 
 
 

48. Counter electromotive force is measured in ______.

 
 
 
 

49. Volts times amperes equals _______.

 
 
 
 

50. The unit of electrical force is the ______.

 
 
 
 

51. Electrically operated safety devices on auxiliary diesel engines function to stop the engine by ____.

 
 
 
 

52. Flame scanner is used with bailer combustion control system to monitor flame quality and to:

 
 
 
 

53. Which of the following represents a limitation to be aware of when the boiler auto combustion control is operated in?

 
 
 
 

54. An overspeed trip stops the diesel engine when the engine _________.

 
 
 
 

55. The over speed device installed in some engines is automatically activated by:

 
 
 
 

56. Another device that detects engine speed is the ____________.

 
 
 
 

57. When a fluorescent lamp has reached the end of its useful life, it should be replaced immediately since the resulting flashing may ______.

 
 
 
 

58. Current flowing only in one direction is called ________.

 
 
 
 

59. Electric motors intended for use outside the engine room and boiler rooms are frequently rated at a designed ambient temperature of 40oC. What is the equivalent in Fahrenheit?

 
 
 
 

60. Capacitance is the property of an electric circuit that resists or opposes amp charge of the _____________.

 
 
 
 

61. A circuit where a fuse has blown would be categorized as a/an ______.

 
 
 
 

62. Electric circuits are protected against overloads and short circuits by means of a/an:

 
 
 
 

63. Which of the following characteristics is most critical in determining the size of the cable to be used in a particular circuit?

 
 
 
 

64. In an impressed current cathode protection system, the anode is ____.

 
 
 
 

65. Impressed current cathodic protection is used on vessels instead of ___.

 
 
 
 

66. Under voltage trips are frequently o switchboard circuits breakers to trip ___.

 
 
 
 

67. H2SO4 means ________.

 
 
 
 

68. When two AC generators are being paralleled, the breaker should be closed with the synchroscope pointer rotating in the ___.

 
 
 
 

69. When two generators are on the line and are sharing the load equality, they are said to be operating in _____.

 
 
 
 

70. The direction of rotation of a DC motor can be reversed by _____.

 
 
 
 

71. In general, DC motor brush sparking can be caused by _____.

 
 
 
 

72. The operator of electrical motors should keep a constant check on ____.

 
 
 
 

73. If a single phase induction motor fails to start, the problem may be _________.

 
 
 
 

74. Which of the following is NOT classified as a DC generator according to their excitation methods?

 
 
 
 

75. When precise speed control and varying loads are needed, you should use a/ an

 
 
 
 

76. In general, the DOST of an AC motor as compare to DC motor is that an AC motor costs:

 
 
 
 

77. The type of AC motor employed on washing machines, refrigerator,compressors, bunch grinders and pumps is often a/ an __________.

 
 
 
 

78. When charging 100 amp hour lead-acid battery __.

 
 
 
 

79. When lead-acid batteries are charging, they always give off hydrogen gas that is _______.

 
 
 
 

80. Which of the following activities occur during the charging process of a lead-acid storage battery?

 
 
 
 

81. When a lead-acid battery begins gassing freely while receiving a normal charge, the charging current should _____

 
 
 
 

82. Due to the operating characteristics of the system, time lag fuse (or dual element fuses) is necessary for use in ______.

 
 
 
 

83. Which of the following materials is a good electrical insulator?

 
 
 
 

84. What will happen to the prime mover of AC generator if the load removed?

 
 
 
 

85. The slowing down of AC generator prime mover speed every time a load is added will be raised to original speed by the___.

 
 
 
 

86. As load is added to an AC generator the prime mover speed will____.

 
 
 
 

87. A change in field excitation of an alternator operating is parallel will bring change to its ______________.

 
 
 
 

88. If an AC generator experience voltage failure, the cause may be____

 
 
 
 

89. An alternator will fail to produce line voltage as result of_____.

 
 
 
 

90. When paralleling two AC generators, the frequency of the incoming generator prior to closing its breaker should be__.

 
 
 
 

91. The load sharing characteristics of two diesel generator engines operating in parallel are mostly dependent on their governor____.

 
 
 
 

92. The diversion of load between two parallel running generators is determined by the___.

 
 
 
 

93. The kilowatt load is evenly distributed between two alternators just place in parallel by adjusting its_____:

 
 
 
 

94. Equal load factors on paralleled AC generators are maintained by an automatic____.

 
 
 
 

95. After closing the circuit breaker to place the two similar alternators in parallel, the next step is to balance the____:

 
 
 
 

96. The total voltage induced into the secondary windings of a transformer is determined mainly by the ratio of the number of turns in primary to the number of turns in the secondary and by the___.

 
 
 
 

97. When paralleling two alternators, the synchronizing lamp grows dim. This indicates that the incoming alternator is___.

 
 
 
 

98. The part of a transformer whose function is to deliver the load received is called the____.

 
 
 
 

99. Capacitance is measured in units called_____.

 
 
 
 

100. When applying the left-hand rule for generators, your thumb will point to the___.

 
 
 
 

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