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.Management Sciences
Category: Control Systems
Which of the following can be measured by the use of a tachogenerator ?
A. Acceleration
B. Speed
C. Speed and acceleration
D. Displacement
F. None of the above
In an automatic control system which of the following elements is not used ?
A. Error detector
B. Final control element
C. Sensor
D. Oscillator
Transfer function of a system is used to calculate which of the following ?
A. The order of the system
B. The time constant
C. The output for any given input
D. The steady state gain
The transient response of a system is mainly due to________________?
A. inertia forces
B. internal forces
C. stored energy
D. friction
The output of a feedback control system must be a function of_________________?
A. reference and output
B. reference and input
F. input and feedback signal
D. output and feedback signal
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
A differentiator is usually not a part of a control system because it______________?
A. reduces damping
B. reduces the gain margin
C. increases input noise
D. increases error
Velocity error constant of a system is measured when the input to the system is unit ___________ function?
A. parabolic
B. ramp
C. impulse
D. step
A.C. servomotor is basically a____________?
A. universal motor
B. single phase induction motor
C. two phase induction motor
D. three phase induction motor
Which of the following is the output of a thermocouple ?
A. Alternating current
B. Direct current
C. A.C. voltage
D. D.C. voltage
F. None of the above
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