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.Management Sciences
Category: Control Systems
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
A car is raining at a constant speed of 50 km/h, which of the following is the feedback element for the driver ?
A. Clutch
B. Eyes
C. Needle of the speedometer
D. Steering wheel
F. None of the above
In force-voltage analogy, velocity is analogous to______________?
A. current
B. charge
C. inductance
D. capacitance
has tendency to oscillate______________?
A. Open loop system
B. Closed loop system
C. Both A. and B.
D. Neither A. nor B.
The capacitance, in force-current analogy, is analogous to_____________?
A. momentum
B. velocity
C. displacement
D. mass
Which of the following is an open loop control system ?
A. Field controlled D.C. motor
B. Ward leonard control
C. Metadyne
D. Stroboscope
If a step function is applied to the input of a system and the output remains below a certain level for all the time, the system is_____________?
A. not necessarily stable
B. stable
C. unstable
D. always unstable
F. any 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
Mass, in force-voltage analogy, is analogous to________________?
A. charge
B. current
C. inductance
D. resistance
The initial response when tne output is not equal to input is called_____________?
A. Transient response
B. Error response
C. Dynamic response
D. Either of the above
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