NEETS Module 03 Assignment 1: Circuit Measurement

(Last Updated On: December 8, 2017)
NEETS Assignment 1: Circuit Measurement

This is the Textbook Assignment: Chapter 1, “Circuit Measurement” from the Module 3 — Introduction to Circuit Protection, Control, and Measurement in Navy Electricity and Electronics Training Series (NEETS) . If you are looking for a reviewer in Electronics Engineering this will definitely help. I can assure you that this will be a great help in reviewing the book in preparation for your Board Exam. Make sure to familiarize each and every questions to increase the chance of passing the ECE Board Exam.

Start Practice Exam Test Questions

Choose the letter of the best answer in each questions.

1. Circuit measurement is used for which of the following purposes?

  • A. To find the weight of a circuit
  • B. To increase the power used in a circuit
  • C. To discover the length and width of a circuit
  • D. To determine the reason a circuit is not functioning properly

2. An in-circuit meter is used for which of the following purposes?

  • A. To reduce circuit losses
  • B. To monitor circuit operation
  • C. To control power to a circuit
  • D. To prevent circuit overload conditions

3. Out-of-circuit meters have which of the following advantages over in circuit meters?

  • A. They can be used on more than one device
  • B. They are lighter weight
  • C. They are more rugged
  • D. All of the above

7. The d’Arsonval meter movement is based on which of the following principles?

  • A. Moving vane
  • B. Electrostatic
  • C. Electrodynamic
  • D. Permanent-magnet moving-coil

8. Current through a meter results in the pointer. In d’Arsonval meter movement, what force produces this deflection?

  • A. Thermocouple action
  • B. Electrostatic repulsion
  • C. Mechanical spring tension
  • D. The interaction of magnetic fields

9. The hairsprings in a d’Arsonval meter movement perform which of the following functions?

  • A. They keep the pointer in the position of the last indication when current is removed
  • B. They aid the movement of the pointer when there is current through the meter
  • C. They make electrical connections to the meter movement
  • D. All of the above

12. What device allows a d’Arsonval meter movement to measure ac by converting ac to pulsating dc?

  • A. A pulsator
  • B. A modulator
  • C. A rectifier
  • D. A converter

13. What is meant by the term "meter damping"?

  • A. Moistening the felt pads
  • B. Smoothing the oscillations of the pointer
  • C. Preventing excessive current through the coil
  • D. Compensating for electromagnetic induced interference

14. Which of the following methods is used to dampen a meter?

  • A. Mount the meter in a mu-metal case
  • B. Install a fuse in one of the input leads
  • C. Incorporate an airtight chamber containing a van
  • D. Provide a fluid reservoir and sponge arrangement next to the pads

15. A d’Arsonval meter movement reacts to which of the following values of voltage?

  • A. Peak
  • B. Average
  • C. Effective
  • D. Peak-to-peak

16. What value of ac is indicated by a meter scale?

  • A. Peak
  • B. Average
  • C. Effective
  • D. Peak-to-peak

17. Which of the following meter movements will measure either ac or dc without the use of a rectifier?

  • A. GMS
  • B. d’Arsonval
  • C. Electrostatic
  • D. Electrodynamic

18. What electrical property is reacted to by the electrodynamic, d’Arsonval, moving vane, and thermocouple meter movements?

  • A. Power
  • B. Current
  • C. Voltage
  • D. Resistance

19. What electrical property is measured by an ammeter?

  • A. Power
  • B. Current
  • C. Voltage
  • D. Resistance

20. How are ammeters connected in an electrical circuit?

  • A. In series with the load
  • B. In parallel with the load
  • C. In accordance with Lenz’s Law
  • D. In series-parallel with the load

21. How does an ammeter affect the circuit being measured?

  • A. It acts as a resistances in series and lowers the circuit current
  • B. It acts as a resistance in series and raises the circuit current
  • C. It acts as a resistance in parallel and lowers the circuit current
  • D. It acts as a resistance in parallel and raises the circuit current

22. How is the effect that an ammeter produces in a circuit kept to a minimum?

  • A. By using a large resistor in series with the ammeter
  • B. By using a large capacitor in parallel with the ammeter
  • C. By ensuring that the meter resistance is low compared to circuit resistance
  • D. By ensuring that the meter resistance is high compared to circuit resistance

23. The ammeter with the greatest sensitivity has which of the following characteristics?

  • A. The lowest amount of current for fullscale deflection indication
  • B. The highest amount of current for fullscale deflection indication
  • C. A low ratio of internal resistance to full-scale deflection indication
  • D. A high ratio of internal resistance to full-scale deflection indication

24. Ammeters measure various ranges through the addition of which of the following components?

  • A. Shunt resistors in series with the meter movement
  • B. Shunt resistors in parallel with the meter movement
  • C. Capacitors in series with the meter movement
  • D. Capacitors in parallel with the meter movement

25. What range of an ammeter should you use for an initial measurement?

  • A. The lowest range
  • B. The highest range
  • C. The mid-scale range
  • D. None of these

26. What portion of the ammeter scale should be used to take a final reading?

  • A. The upper half
  • B. The lower half
  • C. The mid-scale portion
  • D. Anywhere on the meter face

27. When, if ever, can you use a dc ammeter to measure ac values?

  • A. When the ac is high frequency
  • B. For low values
  • C. Always
  • D. Never

28. Which of the following safety precautions should be observed prior to connecting an ammeter into a circuit?

  • A. Switch to the highest range
  • B. Observe proper dc polarity
  • C. Deenergize the circuit
  • D. All of the above

29. What electrical property is measured by a voltmeter?

  • A. Power
  • B. Current
  • C. Voltage
  • D. Resistance

30. A voltmeter should be connected in an electrical circuit in what manner?

  • A. In series with the load
  • B. In parallel with the load
  • C. In accordance with Lenz’s Law
  • D. In series-parallel with the load

31. A voltmeter has an effect on the circuit being measured; what is this effect called?

  • A. Loading
  • B. Damping
  • C. Rectification
  • D. Eddy-current drag

32. To keep the effect of a voltmeter on a circuit to a minimum, the internal resistance of the voltmeter must have which of the following relationships to the circuit load?

  • A. Equal to
  • B. Lower than
  • C. Higher than
  • D. In proportion to

33. Which of the following types of meters can be made from a current sensitive meter movement?

  • A. Ammeter
  • B. Ohmmeter
  • C. Voltmeter
  • D. Each of the above

34. A voltmeter has a high sensitivity when it has which of the following characteristics?

  • A. Low deflection indication
  • B. High deflection indication
  • C. Low ratio of internal resistance to full scale deflection indication
  • D. High ratio of internal resistance to full-scale deflection indication

35. Which of the following configurations extends the range of a voltmeter?

  • A. A resistor in series with the meter movement
  • B. A resistor in parallel with the meter movement
  • C. A capacitor in series with the meter movement
  • D. A capacitor in parallel with the meter movement

36. What voltmeter range should be used for initial measurements?

  • A. The lowest
  • B. The highest
  • C. The mid-scale
  • D. None of these

37. The electrostatic meter movement reacts to which of the following electrical properties?

  • A. Power
  • B. Current
  • C. Voltage
  • D. Resistance

38. Electrostatic meter movements are used to measure which of the following current/voltage values?

  • A. Low voltage
  • B. Low current
  • C. High voltage
  • D. High current

39. Which of the following safety precautions should be observed when a voltmeter is used?

  • A. Deenergize the circuit before connecting the meter
  • B. Start with the lowest range of the meter
  • C. Connect the meter in series with the circuit
  • D. All of the above

40. What electrical property is measured with an ohmmeter?

  • A. Power
  • B. Current
  • C. Voltage
  • D. Resistance

41. An ohmmeter is used to check for which of the following conditions?

  • A. Continuity
  • B. Overheating
  • C. Overcurrent
  • D. Undercurrent

42. How should an ohmmeter be connected in an electrical circuit?

  • A. In series with the load
  • B. In parallel with the load
  • C. In parallel with the source
  • D. In series-parallel with the load

43. An ohmmeter can measure different ranges because of the use of which of the following components?

  • A. Range coils
  • B. Range resistors
  • C. Range capacitors
  • D. Range potentiometers

44. What area of an ohmmeter scale should be used when a measurement is taken?

  • A. Upper half
  • B. Lower half
  • C. Mid-scale portion
  • D. Anywhere on the meter face

45. Ohmmeter are classified by type. What are the two types of ohmmeters?

  • A. Series and shunt
  • B. Normal and reverse
  • C. Full- and half-scale
  • D. None of these

46. What is the most obvious differences in the two types of ohmmeters?

  • A. The ranges of the meters
  • B. The scales of the meters
  • C. The power sources of the meters
  • D. The size of the test leads of the meters

47. Which of the following safety precautions should be observed when an ohmmeter is used?

  • A. Always start with the highest scale of the meter
  • B. Deenergize the circuit before connecting the meter
  • C. Observe proper polarity
  • D. All of the above

48. Meggers (megohmmeters) are used to measure which of the following quantities?

  • A. Low voltage
  • B. High voltage
  • C. Low resistance
  • D. High resistance

49. When a megger is used to check the insulation of a wire, which of the following indications should be considered normal?

  • A. ∞
  • B. 0
  • C. 500 V
  • D. 1000 V

50. Which of the following safety precautions should be observed when a megger is used?

  • A. Do not use a dc megger to measure circuits that are powered by ac
  • B. Always start with the highest scale selection of the meter
  • C. Do not touch the meter leads when a measurement is being taken
  • D. All of the above

51. A multimeter can be used to measure which of the following electrical properties?

  • A. Voltage
  • B. Current
  • C. Resistance
  • D. Each of the above

52. The function switch on a multimeter does NOT perform which of the following functions?

  • A. Selection of the meter range
  • B. Determination of the proper scale
  • C. Selection of ac or dc capability
  • D. Changing of the multimeter from an ammeter to a voltmeter

53. One of the problems encountered in building a multimeter is that the meter movement gives different readings for the same values of ac and dc. Which of the following features of a multimeter will solve this problem?

  • A. A rectifier
  • B. An ac/dc switch
  • C. Separate scales for ac and dc
  • D. A mirror on the face of the meter

54. Why is there a mirror on the face of a multimeter?

  • A. To illuminate the meter face
  • B. To aid in reducing parallax error
  • C. To reduce the friction between the pointer and the meter face
  • D. To compensate for the difference in ac and dc measurements

55. If the mirror on the face of a multimeter is used properly, where will the image of the pointer appear?

  • A. Hidden behind the pointer
  • B. Barely visible on either side of the pointer
  • C. Clearly visible to the left of the pointer
  • D. Clearly visible to the right of the pointer

56. Which of the following safety precautions does NOT apply to a multimeter?

  • A. Observe proper dc polarity when measuring dc
  • B. Deenergize the circuit before connecting the meter
  • C. Be sure the meter is switched to ac for ac measurements
  • D. Never apply power to the circuit when measuring voltage with the meter

57. If a multimeter has no OFF position, and it is returned to storage, on which of the following positions should the meter be set?

  • A. +dc; highest voltage range
  • B. -dc; higher resistance range
  • C. Ac; highest voltage range
  • D. Ac; highest current range

58. When the current in a conductor is measured without the conductor being disconnected, which of the following meters could be used?

  • A. Multimeter
  • B. Hook-on voltameter
  • C. Induction wattmeter
  • D. Transformer voltmeter

59. Which of the following electrical quantities is measured by a wattmeter?

  • A. Power
  • B. Energy
  • C. Voltage
  • D. Current

60. Which of the following electrical quantities is measured by a watt hour meter?

  • A. Power
  • B. Energy
  • C. Voltage
  • D. Current

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NEETS Module 03 Assignment 1: Circuit Measurement
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