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.Management Sciences
Category: Control Systems
Which of the following devices is used for conversion of co-ordinates ?
A. Microsyn
B. Selsyn
C. Synchro-resolver
D. Synchro-transformer
A phase lag lead network introduces in the output_______________?
A. lag at all frequencies
B. lag at high frequencies and lead at low frequencies
C. lag at low frequencies and lead at high frequencies
D. none of the above
In thermal-electrical analogy charge is considered analogous to_______________?
A. heat flow
B. reciprocal of heat flow
C. reciprocal of temperature
D. temperature
F. none of the above
signal will become zero when the feedback signal and reference signs are equal?
A. Input
B. Actuating
C. Feedback
D. Reference
In electrical-pneumatic system analogy the current is considered analogous to_____________?
A. velocity
B. pressure
C. air flow
D. air flow rate
With feedback __________ increases?
A. system stability
B. sensitivity
C. gain
D. effects of disturbing signals
The band width, in a feedback amplifier_______________?
A. remains unaffected
B. decreases by the same amount as the gain increase
C. increases by the sane saaaajajt as the gain decrease
D. decreases by the same amount as the gain decrease
If the gain of the critical damped system is increased it will behave as______________?
A. oscillatory
B. critically damped
C. overdamped
D. underdamped
F. none of the above
The second derivative input signals modify which of the following ?
A. The time constant of the system
B. Damping of the system
C. The gain of the system
D. The time constant and suppress the oscillations
F. None of the above
Which of the following can be measured by LVDT ?
A. Displacement
B. Velocity
C. Acceleration
D. Any of the above
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