Search
.Management Sciences
Category: Process Control and Instrumentation
Pirani gauge is used for the measurement of________________?
A. Very high pressure
B. High vacuum
C. Liquid level under pressure
D. Liquid level at atmospheric pressure
Pick out the first order system from among the following ?
A. Damped vibrator
B. Mercury in glass thermometer kept in boiling water
C. Interacting system of two tanks in series
D. Non-interacting system of two tanks in series
Which of following error integral is considered as the best criterion in controller settings ?
A. ∫0 ∞ |e| dt
B. ∫0 ∞ |e2| dt
C. ∫0 ∞ e2 dt
D. None of these
Emf generated in a thermocouple depends on the temperature ___________________?
A. Of cold junction only
B. Of hot junction only
C. Difference between hot and cold junctions
D. Difference between cold junction and atmospheric temperature
Stalagmometer is used for the measurement of__________________?
A. Kinematic viscosity
B. Surface tension
C. Refractive index
D. Optical activity
_____________ is an example of distributed parameter system ?
A. Tubular reactor
B. CSTR
C. On-off controller
D. None of these
Which of the following shows maximum dip effect (indicating reverse direction of temperature change) ?
A. Mercury thermometer
B. Radiation pyrometer
C. Bimetallic thermometer
D. Thermocouple
For increased speed of response of an expansion pressure spring thermometer, the thermometer bulb should have a__________________?
A. Large area but small mass
B. High thermal conductivity
C. Small specific heat
D. All A , B & C
Bourdon tube is never made of________________?
A. Phosphor bronze
B. Monel metal
C. Stainless steel
D. Cast iron
Recent Comments