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Automatic Control Systems

Automatic Control Systems
Integral control action

Neither (a) nor (b)
Both (a) and (b)
Removes offset
May lead to oscillatory response

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Automatic Control Systems
The sensor generally used in incremental optical encoder is

LCD
Photodiode
Either (a) or (b)
LED

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Automatic Control Systems
DC tachogenerator can be used in

Neither A nor B
Position control system
Speed control system
Both A and B

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Automatic Control Systems
Which of the following is open loop system?

Aqualing
Respiratory system of animal
System for controlling antirocket missiles
Wind screen wiper

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Automatic Control Systems
Robotic manipulator arms mostly use

Hydraulic actuator
Electric motor actuator
None of these
Pneumatic actuator

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Automatic Control Systems
A system is highly oscillatory if

Gain margin is high and phase margin is 180°
Gain margin is high
Gain margin is close to 1
Gain margin is close to 1 or phase margin is zero

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