The first order control system, which is well designed, has a_______________?
(A) small bandwidth
(B) negative time constant
(C) large negative transfer function pole
(D) none of the above
The transfer function technique is considered as inadequate under which of the following conditions ?
(A) Systems having complexities and non-linearities
(B) Systems having stability problems
(C) Systems having multiple input disturbances
(D) All of the above
With feed back ____________ reduces?
(A) system stability
(B) system gain
(C) system stability and gain
(D) none of the above
Which of the following is an electromagnetically device ?
(A) Induction relay
(B) Thermocouple
(C) LVDT
(D) Any of the above F. None of the above
__________________can be extended to systems which are time-varying ?
(A) Bode-Nyquist stability methods
(B) Transfer functions
(C) Root locus design
(D) State model representatives
The effect of error damping is to______________?
(A) provide larger settling lime
(B) delay the response
(C) reduce steady state error
(D) any of the above F. none of the above
In pneumatic control systems the control valve used as final control element converts____________?
(A) pressure signal to electric signal
(B) pressure signal to position change
(C) electric signal to pressure signal
(D) position change to pressure signal F. none of the above
The phase lag produced by transportation relays_____________?
(A) is independent of frequency
(B) is inverseh’proportional to frequency
(C) increases linearly with frequency
(D) decreases linearly with frequency
Addition of zeros in transfer function causes which of the following ?
(A) Lead-compensation
(B) Lag-compensation
(C) Lead-lag compensation
(D) None of the above
Which of the following is the best method for determining the stability and transient response ?
(A) Root locus
(B) Bode plot
(C) Nyquist plot
(D) None of the above