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Process Instrumentation and Control - Interview Questions and Answers

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106. The immediately apparent feature of an observed transient performance is :
A. the existence and magnitude of the maximum overshoot
B. the frequency of the transient oscilla-tion
C. the response time
D. all of the above
E. none of the above.
Explanation:
107. The transient performance, i.e. the behaviour of the output variable as the system changes, from one steady-state condition to another, is evaluated in terms of;
A. accuracy
B. settling time
C. response time
D. peak time
E. maximum overshoot, rise time, and response time.
Explanation:
108. When an automatic control system is the output variable overshoots its desired steady-state condition and a transient oscillation occurs :
A. underdamped
B. over damped
C. critically damped
D. damped
E. without damping.
Explanation:
109. The steady state output of the system to input sinusoids of varying frequency is referred to as :
A. frequency response of a system
B. Nyquist plot
C. Bode plot
D. transient response
E. logarithmic plot.
Explanation:
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