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MCQs

Total Questions : 120 | Page 9 of 12 pages
Question 81. Which of the following represents materials used for thickness measurement using inductive transducer?
  1.    Material should be magnetic in nature
  2.    Material should be magnetic and conducting
  3.    Material should be magnetic and non-conducting
  4.    All of the mentioned
 Discuss Question
Answer: Option D. -> All of the mentioned
Answer: (d).All of the mentioned
Question 82. Which of the following device can be used for measuring relative angular displacement between two systems?
  1.    Tachometer
  2.    Synchro
  3.    Speedo meter
  4.    None of the mentioned
 Discuss Question
Answer: Option B. -> Synchro
Answer: (b).Synchro
Question 83. Which of the following is correct for synchro?
  1.    Transformer type displacement transducer
  2.    Inductive type displacement transducer
  3.    Capacitive type displacement transducer
  4.    Resistive type displacement transducer
 Discuss Question
Answer: Option A. -> Transformer type displacement transducer
Answer: (a).Transformer type displacement transducer
Question 84. For thickness measurement, the material should have constant permeability and resistivity.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 85. Inductive potentiometers are used to measure ________________
  1.    Voltage
  2.    Current
  3.    Displacement
  4.    None of the mentioned
 Discuss Question
Answer: Option C. -> Displacement
Answer: (c).Displacement
Question 86. Capacitive transducers can be used by _______________
  1.    Measuring change in distance between plates
  2.    Measuring change in area of plates
  3.    Change in a dielectric material
  4.    All of the mentioned
 Discuss Question
Answer: Option D. -> All of the mentioned
Answer: (d).All of the mentioned
Question 87. Which of the following is correct for the capacitive transducer?
  1.    Capacitive strain gauges
  2.    Capacitive tachometers
  3.    Capacitive pressure transducer
  4.    All of the mentioned
 Discuss Question
Answer: Option D. -> All of the mentioned
Answer: (d).All of the mentioned
Question 88. Capacitive transducers cannot be used as strain gauges.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 89. For a material capacitance increases with _____________
  1.    Decrease in area of plates, all other factors constant
  2.    Increase in distance between plates, all other factors constant
  3.    Decrease in distance between plates, all other factors constant
  4.    None of the mentioned
 Discuss Question
Answer: Option C. -> Decrease in distance between plates, all other factors constant
Answer: (c).Decrease in distance between plates, all other factors constant
Question 90. Which of the following is correct for moisture transducers?
  1.    Dielectric constant of pure water greater than other materials
  2.    Dielectric constant of pure water much less than other materials
  3.    Dielectric constant of pure water and of other materials are equal
  4.    None of the mentioned
 Discuss Question
Answer: Option A. -> Dielectric constant of pure water greater than other materials
Answer: (a).Dielectric constant of pure water greater than other materials

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