Mechanical Engineering Questions And Answers :: Process Instrumentation And Control: part1



Mechanical Engineering : Process Instrumentation And Control QUESTIONS AND ANSWERS :: part1 : 6 to 10

Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :

6.Pick up false statement about pressure measurements :

low pressure is normally measured by manometers
medium pressure by diaphragms or bellows
medium and high pressure by Bourdon gauge
all pressures by transducers
absolute pressure by piezoelectric crystal.

7.Which gauge can be used to measure pressure below 1 |xm :

dead weight tester
pirani gauge
ionization gauge
McLeod gauge
absolute pressure sensor.

8.Which is not correct statement about selection of tube material for a Bourdon gauge:

Have high creep strength to withstand high temperature
Be stable enough to maintain its calibration indefinitely
Be immune to corrosion from the fluid inside the tube, and from the atmosphere outside it
Be hard enough to withstand the applied pressure without any part of it being stressed above the limit of proportionality
Be easy to fabricate.

9.The condition of how much successive readings differ from one another for a fixed value of the variable is called :

accuracy
error
sensitivity
resolution
precision.

10.Which of the following device is used as a standard for calibrating pressure gauges :

manometer
diaphragm
bellows
dead weight pressure tester
piezoelectric crystal.

More Process Instrumentation And Control QUESTIONS AND ANSWERS available in next pages

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