Measuring Instruments MCQ

11. Induction type instruments are used in

  1. AC
  2. DC
  3. Both
  4. None of the above
Answer
Answer. a

12. Watt-hour instrument is the type of

  1. Indicating
  2. integrating
  3. recording
  4. none of the above
Answer
Answer. b

13. Which instruments have a uniform scale

  1. Spring control instrument
  2. Gravity control instrument
  3. Both (a) and (b)
  4. None of the above
Answer
Answer. a

14. Damping torque is essential to

  1. Increase oscillation
  2. Reduce oscillation
  3. Maintain oscillation unchanged
  4. None of these
Answer
Answer. b

15. Which of the following statements is not an advantage of electrodynamic instruments?

  1. Free from hysteresis errors
  2. Low power consumption
  3. Low accuracy
  4. Low sensitivity
Answer
Answer. d

16. An induction meter can handle current up to

  1. 10 A
  2. 30 A
  3. 60 A
  4. 100 A
Answer
Answer. d

17. If a galvanometer is sensitive, it will provide large deflection on providing

  1. No current
  2. Large power
  3. Small current
  4. large voltage
Answer
Answer. c

18. The material of hair spring used in measuring instruments is made of which of the material of the following

  1. Copper
  2. Bronze
  3. Alnico
  4. None of these
Answer
Answer. b

19. Which torque is essential for indicating instruments?

  1. Deflecting
  2. Controlling
  3. Damping
  4. All of the above
Answer
Answer. d

20. The type of instruments used mainly for standardizing instruments in laboratories is

  1. Indicating instrument
  2. Integrating instrument
  3. Absolute instrument
  4. Recording instrument
Answer
Answer. c
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