Pirani gauge is used for the measurement of very high pressure. high vacuum. liq

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Question
Pirani gauge is used for the measurement of
Options
A. very high pressure.
B. high vacuum.
C. liquid level under pressure.
D. liquid level at atmospheric pressure

Correct Answer

high vacuum.

Process Control and Instrumentation problems

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5. The frequency response of a dynamic element shows a constant magnitude ratio at all frequencies. The element exhibits a negative phase shift at all frequencies. The absolute value of the phase shift increases linearly with frequency. The element has the transfer function
Options
A. e^-?_s
B.
C.
D.

8. The characteristic equation for the control system with a closed loop transfer function G₁/1 + G₂ is given by 1 + G₂ = 0. The characteristic equation for the control system
Options
A. depends only upon the open loop transfer function.
B. determines its stability.
C. is the same for set point or load changes.
D. all 'a', 'b' & 'c'

9. The experimental response of the controlled variable y(t) for a step change of magnitude P in the manipulated variable x(t) is shown below :

The appropriate transfer function of the process is
Options
A.
B.
C.
D.

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