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MCQs

Total Questions : 1634 | Page 11 of 164 pages
Question 101. Which of the following is not a speed measuring instrument?
  1.    Psychrometer
  2.    Stroboscope
  3.    Tachometer
  4.    All of the above
 Discuss Question
Answer: Option A. -> Psychrometer
Question 102. A stable system is the one
  1.    For which the output response is bounded for all bounded input
  2.    Which exhibits an unbounded response to a bounded input
  3.    Which satisfies the conditions for a servo problem
  4.    None of these
 Discuss Question
Answer: Option A. -> For which the output response is bounded for all bounded input
Question 103. Which of the following is the dynamic characteristics of an instrument?
  1.    Reproducibility
  2.    Sensitivity
  3.    Dead zone
  4.    Fidelity
 Discuss Question
Answer: Option D. -> Fidelity
Question 104. Radiation thermometer can not measure the temperature
  1.    Inside a pressure vessel
  2.    Of an object without coming in contact with it
  3.    Of liquid oxygen
  4.    Of moving objects at high temperature
 Discuss Question
Answer: Option C. -> Of liquid oxygen
Question 105. Liquid flow rate in a small channel is best measured by a/an
  1.    Weir
  2.    Pitot tube
  3.    Vane meter
  4.    Venturimeter
 Discuss Question
Answer: Option B. -> Pitot tube
Question 106. High temperature of around 2000°C of incandescent gas mantles is measured by a/an
  1.    Specially designed thermocouple
  2.    Optical pyrometer
  3.    Radiation pyrometer
  4.    None of these
 Discuss Question
Answer: Option C. -> Radiation pyrometer
Question 107. Zirconia probe is used for the continuous measurment of __________ flue gases going out of the furnace.
  1.    Oxygen in
  2.    Carbon dioxide in
  3.    Carbon monoxide in
  4.    Temperature of
 Discuss Question
Answer: Option A. -> Oxygen in
Question 108. Which of the following filled system expansion thermometer has the capability to measure the lowest temperature?
  1.    Mercury in glass thermometer
  2.    Mercury in steel thermometer
  3.    Alcohol in glass thermometer
  4.    Fused metal (Na or K) in steel thermometer
 Discuss Question
Answer: Option C. -> Alcohol in glass thermometer
Question 109. Stability of a control system containing a transportation lag can be best analysed by
  1.    Routh test
  2.    Root locus methods
  3.    Frequency response methods
  4.    None of these
 Discuss Question
Answer: Option C. -> Frequency response methods
Question 110. Starting temperature of optical radiation pyrometer is __________ °C.
  1.    800
  2.    400
  3.    1200
  4.    1500
 Discuss Question
Answer: Option A. -> 800

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