8. An instantenous trip type fuse will ?

6. The amount of sodium phosphate in treated boiler water can be measured by ?

50. On a vessel with turbo-electric drive, which of the following conditions would indicate that the propulsion motor had cut-out from synchronization with the propulsion generator ?

31. It is defined as the movement of electrical charge (the flow of electrons) through an electrical circuit is called ?

25. In a faceplate-type motor starter, the starting arm is held in the 'OFF' position by alan

35. What is the process of breaking up fuel oil into fine particles to ensure good combustion?

18. What is the use of a magnetic blowout coil in a ship,s crane using DC motor controller contactor ?

3. What kind of overload relay that is being actuated by an electromagnetic coil ?

32. What represents an application of a silicon controlled rectifier?

1. What will happen if a low impedance connection is accidentally created across a charged capacitor within a high-voltage electrical network?

19. In SF6 circuit breakers what is the meaning of SF6?

34. How is the operator ensured that he is not in contact with any unearthed conductor before insulation resistance(IR) measurement of a HV system?

47. In a three-phase electrical system, three ground detecting lamps are provided. One lamp goes dark and the others increase in brightness. When the test button is pushed, all lamps have equal illunination. You should called that

20. When trouble shooting electronic equipment, you should use a high impedance multimeter

45. The following are rating of circuit breakers except

46. a triac thyristor functions as a control device and is basically

22. In a liquid dielectric, which of the following impurity has significant effect in reducing the breakdown strength ?

36. How do shipboard electrical cables cross-sectional area express?

15. What do you call the emission of electrons from hot bodies?

30. You are attempting to parallel two AC generators, and the synchroscope pointer is revolving past in the clockwise direction. What indicates that the frequency of the incoming machine?

14. Which of the following problems will most likely occur if the starting winding of a split-phase induction motor failed to cutout once the motor was in continuous operation ?

16. Which of the following statements describes the significance of ambient temperature in relation to the service life of electronic components?

44. Ammeters and voltmeters use in a sinusoidal AC power system indicates which of the following values of the waveforms measured?

17. The first requirement for logical trouble shooting of any system is the ability to

29. To locate a grounded field coil in a synchronous motor, which of the instruments listed could be used ?

26. The shunt use in an ammeter should be connected to?

10. When a solid-state component of an electronic circuit is mounted to a metalic mass, the general purpose of that mass is to

12. After clipping the two leads together, prior to taking a resistance reading with a volt-ohmmilliammeter, the 'zero' setting must be adjusted. ylf you find the adjustment knob will not return the pointer to 'zero'. it is likely an indication of ?

42. The following are main things you should ccheck when synchronizing a generator except for?

39. Which of the following indicate when paralleling two alternators, the synchronizing lamps remain lit as the synchroscope pointer approaches the 0° position?

4. What kind of resistance thermometer utilizes semi-conductor material which have a characteristic of a resistance decrease with temperature increase?

2. When troubleshooting an electronic circuit, a cold solder joint can be located with the aid of an ohmmeter. Once the problem has been located, what should you do next?

48. While starting a synchronous motor, the ammeter pegs out at maximum and then returns to the proper value after synchronization. What is this an indication of?

43. What type of widely used thermocouple, also termed as Ni-Chromium/Ni-Alumel, with enhanced reliability, preciseness, inexpensive and operate at temperature ranges between -270 to 1,260 degc?

41. What is the degree angle when the voltage and current are out of phase so that the true power is equal to zero?

33. In a circuit that is not energized, which of the listed instrument is used ?

24. On an engine throttle control system, the auxiliary control circuits are provided with devices to prevent excessive over travel of the pilot valve by the synchronous motor. These devices are called_

49. When using an ohmmeter to test a semi conductor diode, you find a low resistance in both forward and reverse bias direction. This indicates that the diode is,

38. What is the first step in removing a generator from parallel operation.

7. What determines the power factor of an electrical distribution system being supplied by a single AC generator?

23. A loss of field excitation to an AC generator while operating in parallel will cause to

40. What cause the main feed pump which can handle high temperature water without becoming vapor bound?

11. A bus disconnect link is used to isolate?

9. What is the transformer winding where power source is connected?

21. How would you show your understanding to a communication device that allows to talk to each other with the use of a handset, similar to a conventional telephone but without the use of external power?

13. Electric propulsion coupling excitation is reduced at slow speed to

28. What do you call an instrument that used to measure the specific gravity of the electrolyte in a rechargeable battery ?

5. What is the ratio of effective value of the counter EMF in volts to the effective value of the current in amperes?

27. Which of the following statements concerning analog and digital devices are correct?

37. RTD type sensor utilizes which principle in temperature measurement?