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MCQs

Total Questions : 107 | Page 2 of 11 pages
Question 11. . Which of the following does not pertain to timing device
  1.    Charging of a condenser
  2.    Piezoelectric crystal.
  3.    Release of air through a nozzle
  4.    Flow of sand through an opening
 Discuss Question
Answer: Option B. -> Piezoelectric crystal.
Question 12. . The smallest change in measured value to which the instrument will respond is called
  1.    Accuracy
  2.    Precision
  3.    Amplification
  4.    Resolution
 Discuss Question
Answer: Option D. -> Resolution
Question 13. . The ratio of output signal or response of the instrument to a change in input or measured variable is called :
  1.    Sensitivity
  2.    Precision
  3.    Resolution
  4.    Threshold
 Discuss Question
Answer: Option A. -> Sensitivity
Question 14. . Which of the following is used to count the number of brass items passing on a conveyor line, when no contact is permitted with the object :
  1.    Event counter
  2.    Mechanical counter
  3.    Magnetic pick up
  4.    Photoelectric cell
 Discuss Question
Answer: Option D. -> Photoelectric cell
Question 15. . Motion of fast-moving systems may be timed and studied by means of a:
  1.    Streboscope
  2.    Piezoelectric crystal
  3.    Electronic timer
  4.    Chronometer
 Discuss Question
Answer: Option A. -> Streboscope
Question 16. . In which device the input motion changes the inductive coupling between ' primaryand secondary coils
  1.    Potentiometer
  2.    Synchro
  3.    Collimator
  4.    Protractor
 Discuss Question
Answer: Option B. -> Synchro
Question 17. . Pressure measuring devices are not based on
  1.    Measure of an equivalent height of liquid column
  2.    Measure of the force exerted on a fixed area
  3.    Measure of some change in electrical or physical characteristics of the fluid
  4.    Area measurement by polar planimeter
 Discuss Question
Answer: Option D. -> Area measurement by polar planimeter
Question 18. . Which effect is useful in measuring rapidly varying forces :
  1.    Piezoelectric
  2.    Strain gauge
  3.    Photovoltaic
  4.    Pneumatic gauging
 Discuss Question
Answer: Option A. -> Piezoelectric
Question 19. . Which of the following device is used as a standard for calibrating pressure gauges
  1.    Manometer
  2.    Diaphragm
  3.    Bellows
  4.    Dead weight pressure tester
 Discuss Question
Answer: Option D. -> Dead weight pressure tester
Question 20. . Which of the following may be measured by the deflection of an elastic element, by balancing against a known force, by the acceleration produced in an object of known mass :
  1.    Force
  2.    Pressure
  3.    Temperature
  4.    Level
 Discuss Question
Answer: Option A. -> Force

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