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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