Mechanical Engineering : Process Instrumentation And Control QUESTIONS AND ANSWERS :: part3 : 1 to 5
Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
1.Target meter is concerned with measure-ment of: |
flow |
pressure |
viscosity |
density |
level. |
2.Flange taps in case of orifice plate are installed : |
25 mm from each side of the orfice plate |
D (pipe diameter) upstream and D/2 downstream |
just at surface of orifice plate |
2.5 D upstream and 8 D downstream |
any one of the above. |
3.Dall tube is another variation of : |
orifice plate |
nozzle |
venturi tube |
rotameter |
pitot-tube. |
4.Which of the following flow meter maintains a constant pressure differential but varies the orifice area with flow : |
Ledoux bell |
variable area |
straightening vane |
variable head |
vane-type. |
5.Pick up correct statement about calibration of temperature sensors by comparison method using liquid bath : |
water is used for temperatures from 0 to I00�C |
special grade of paraffin oil is used for temperatures between 100 and 200�C |
For temperature between 200 and 600�C, a mixture of sodium nitrate and potassium nitrate is used |
all of above are true |
none of above is true. |
More Process Instrumentation And Control QUESTIONS AND ANSWERS available in next pages
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