Mechanical Engineering Questions And Answers :: Process Instrumentation And Control: part3



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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