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Automatic Control Systems

Automatic Control Systems
If the poles lie in second quadrant, damping ratio is

zero
1
more than 1
less than 1

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Automatic Control Systems
Which control action can never be used alone?

Derivative
Integral
Both (b) and (c)
Proportional

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Automatic Control Systems
Lag compensation permits a high gain at low frequencies.

False
True

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Automatic Control Systems
Robotic manipulator arms mostly use

None of these
Hydraulic actuator
Electric motor actuator
Pneumatic actuator

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

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

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Automatic Control Systems
The poles with greater displacement from the real axis correspond to

Unbounded output
Lower frequencies of oscillations
Stable response
Higher frequencies of oscillations

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