Search
.Management Sciences
Category: Process Control and Instrumentation
Response of a linear control system for a change in set point is called __________________?
A. Frequency response
B. Transient response
C. Servo problem
D. Regulator problem
In a closed loop system, the process to be controlled is an integrating process with transfer function 1/2s. The controller proposed to be used in an integral controller with transfer function 1/T1s. When a step change in set point is applied to such a closed loop system, the controlled variable will exhibit__________________?
A. Overdamped response
B. Underdamped response
C. Undamped response
D. Unstable response
Stability of a control system containing a transportation lag can be best analysed by_______________?
A. Routh test
B. Root locus methods
C. Frequency response methods
D. None of these
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
Recent Comments