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.Management Sciences
Category: Process Control and Instrumentation
Thermocouple in a thermal well behaves as a true ________________?
A. First order system
B. Second order system (overdamped)
C. Multiple first order system
D. Second order system (underdamped)
Very low pressure is expressed in microns (μ), which is equal to ____________ mm of Hg column (absolute) at 0°C?
A. 0.0001
B. 0.001
C. 0.01
D. 0.1
The frequency at which maximum amplitude ratio is attained is called the ______________ frequency?
A. Corner
B. Resonant
C. Cross-over
D. Natural
The ____________ of the fluid contained in the temperature sensing element (i.e., bulb) of filled system thermometers changes with change in temperature ?
A. Pressure
B. Volume
C. Viscosity
D. All A., B. and C.
Which of the following controllers has the least maximum deviation ?
A. P-controller
B. P-I controller
C. P-I-D controller
D. P-D controller
Starting temperature of optical radiation pyrometer is ______________ °C?
A. 800
B. 400
C. 1200
D. 1500
Feed forward controller accounts for the ______________ changes?
A. Set point
B. Load
C. Both A. & B.
D. Neither A. nor B.
The pressure sensing element of elastic type pressure gauge is never made in the form of a_________________?
A. Bellow
B. Diaphragm
C. Strip
D. Bourdon tube
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