In an open loop control system
A. Output is independent of control input
B. Output is dependent on control input
C. Only system parameters have effect on the control output
D. None of the above
Answer: Option A
Zero initial condition for a system means
A. input reference signal is zero
B. zero stored energy
C. ne initial movement of moving parts
D. system is at rest and no energy is stored in any of its components
Which of the following is the input to a controller ?
A. Servo signal
B. Desired variable value
C. Error signal
D. Sensed signal
With feedback _____ increases.
A. system stability
B. sensitivity
C. gain
D. effects of disturbing signals
In a stable control system backlash can cause which of the following ?
A. Underdamping
B. Overdamping
C. Poor stability at reduced values of open loop gain
D. Low-level oscillations
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