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MCQs

Total Questions : 177 | Page 3 of 18 pages
Question 21. Load cell is sensitive to minute strains.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 22. Mass of only about 20 kg can be measured by a load cell.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 23. Resistance temperature detector is ___________
  1.    a electrical transducer
  2.    a mechanical transducer
  3.    a chemical transducer
  4.    a physical transducer
 Discuss Question
Answer: Option A. -> a electrical transducer
Answer: (a).a electrical transducer
Question 24. Relation between temperature and resistance of a conductor is ________
  1.    Rₜ = Rref [1+t]
  2.    Rₜ = Rref [1+α∆t]
  3.    Rₜ = Rref [1-αt]
  4.    Rₜ = Rref [1-t]
 Discuss Question
Answer: Option B. -> Rₜ = Rref [1+α∆t]
Answer: (b).Rₜ = Rref [1+α∆t]
Question 25. Sensing element in the thermometer must provide ________
  1.    small change in resistance
  2.    no change in resistance
  3.    large change in resistance
  4.    infinite change in resistance
 Discuss Question
Answer: Option C. -> large change in resistance
Answer: (c).large change in resistance
Question 26. Thermistor has a resistance of ________
  1.    250 ῼ to 500 kῼ
  2.    50 ῼ to 10 kῼ
  3.    1 ῼ to 1 kῼ
  4.    100 ῼ to 100 kῼ
 Discuss Question
Answer: Option D. -> 100 ῼ to 100 kῼ
Answer: (d).100 ῼ to 100 kῼ
Question 27. Change in resistance is measured using a ________
  1.    Anderson’s bridge
  2.    Wheatstone’s bridge
  3.    Hay’s bridge
  4.    Maxwell’s bridge
 Discuss Question
Answer: Option B. -> Wheatstone’s bridge
Answer: (b).Wheatstone’s bridge
Question 28. Thermistor material is pressed ________
  1.    under zero pressure
  2.    under low pressure
  3.    under high pressure
  4.    under low volume
 Discuss Question
Answer: Option C. -> under high pressure
Answer: (c).under high pressure
Question 29. Thermistors are suited for precision temperature measurements.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 30. Thermistor follows which law for small variations ________
  1.    Charle’s law
  2.    KVL
  3.    KCL
  4.    Ohm’s law
 Discuss Question
Answer: Option D. -> Ohm’s law
Answer: (d).Ohm’s law

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