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.Management Sciences
Category: Control Systems
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
A signal other than the reference input that tends to affect the value of controlled variable is known as_________________?
A. disturbance
B. command
C. control element
D. reference input
___________From which of the following transfer function can be obtained ?
A. Signal flow graph
B. Analogous table
C. Output-input ratio
D. Standard block system
F. None of the above
A control system in which the control action is somehow dependent on the output is known as____________?
A. Closed loop system
B. Semiclosed loop system
C. Open system
D. None of the above
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