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.Management Sciences
Category: Process Control and Instrumentation
Pressure of 0.0001 absolute psi can be measured by _____________ gauge?
0
A. Mcleod
B. Pirani
C. Thermocouple
D. None of these
Which of the following measurements can be made by the measurement of emf ?
A. pH value
B. Degree of hydrolysis
C. Composition of complex ions
D. All A., B. & C.
Which of the following relates the absorption & evolution of heat at the junctions of a thermocouple to the current flow in the circuit ?
A. Seebeck effect
B. Peltier effect
C. Joule heating effect
D. Thomson effect
Liquid column manometers are used for measuring the pressure ______________ kgf/cm2?
A. > 2 (gage)
B. < 3 (gage)
C. < 10 (gage)
D. < atmospheric
Gain margin is equal to the_________________?
A. Amplitude ratio
B. Reciprocal of amplitude ratio
C. Gain in P controller
D. Gain in P-I controller
Continuous measurement of specific gravity of a liquid is done by __________________?
A. Hydrometer
B. Contact-type electric indicators
C. Displacement meter
D. Both A. and C.
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