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Automatic Control Systems

Automatic Control Systems
DC tachogenerator can be used in

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

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Automatic Control Systems
M circles are symmetrical with respect to

M = 1 straight line and real axis
M = 1 straight line
M = 1 straight line and imaginary axis
Real and imaginary axis

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Automatic Control Systems
A system is highly oscillatory if

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

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Automatic Control Systems
Integral control action

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

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

Integral
Both (b) and (c)
Proportional
Derivative

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Automatic Control Systems
Temperature is analogous to

Voltage
Flux
Charge
None of these

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