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MCQs

Total Questions : 52 | Page 2 of 6 pages
Question 11. In a measuring system what is the term used to specify a difference between higher and lower calibration values?
  1.    Range
  2.    Span
  3.    Drift
  4.    Threshold
 Discuss Question
Answer: Option B. -> Span
Answer: (b).Span
Question 12. Using a voltmeter measured value is 24.3V, while its true value is 24V. What is the relative error of measurement?
  1.    1.25%
  2.    1.2%
  3.    1.3%
  4.    1.4%
 Discuss Question
Answer: Option A. -> 1.25%
Answer: (a).1.25%
Question 13. What is the span of an ammeter with range -30 to +30A?
  1.    60
  2.    -60
  3.    30
  4.    20
 Discuss Question
Answer: Option A. -> 60
Answer: (a).60
Question 14. ______________ is used to prevent oscillation in moving system.
  1.    Oscillatory system
  2.    Controlling
  3.    Damping system
  4.    Deflecting
 Discuss Question
Answer: Option C. -> Damping system
Answer: (c).Damping system
Question 15. Given a DC voltmeter has a sensitivity of 500 ohm/V. For a full scale reading in 100V range, what will be the current through voltmeter?
  1.    500mA
  2.    200mA
  3.    250mA
  4.    300mA
 Discuss Question
Answer: Option B. -> 200mA
Answer: (b).200mA
Question 16. Which transducer is known as ‘self-generating transducer’?
  1.    Active transducer
  2.    Passive transducer
  3.    Secondary transducer
  4.    Analog transducer
 Discuss Question
Answer: Option A. -> Active transducer
Answer: (a).Active transducer
Question 17. What is the principle of operation of LVDT?
  1.    Mutual inductance
  2.    Self-inductance
  3.    Permanence
  4.    Reluctance
 Discuss Question
Answer: Option A. -> Mutual inductance
Answer: (a).Mutual inductance
Question 18. What is the relation between scale factor and sensitivity of a transducer?
  1.    Scale factor is double of sensitivity
  2.    Scale factor is inverse of sensitivity
  3.    Sensitivity is inverse of scale factor
  4.    Sensitivity is equal to scale factor
 Discuss Question
Answer: Option B. -> Scale factor is inverse of sensitivity
Answer: (b).Scale factor is inverse of sensitivity
Question 19. Which of the following is an analog transducer?
  1.    Encoders
  2.    Strain gauge
  3.    Digital tachometers
  4.    Limit switches
 Discuss Question
Answer: Option B. -> Strain gauge
Answer: (b).Strain gauge
Question 20. Which of the following can be measured using Piezo-electric transducer?
  1.    Velocity
  2.    Displacement
  3.    Force
  4.    Sound
 Discuss Question
Answer: Option C. -> Force
Answer: (c).Force

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