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Automatic Control Systems

Automatic Control Systems
Which of the following is used to obtain output position in a position control system?

Load cell
Thermistor
Synchro
Strain gauge

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Automatic Control Systems
DC tachogenerator can be used in

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

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Automatic Control Systems
The permanent magnet field system of brushless dc servo- motor is generally on

Rotor
Stator
Either (a) or (b)
Partly on stator and partly on rotor

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Automatic Control Systems
Nyquist stability criterion uses open loop frequency response characteristics.

True
False

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Automatic Control Systems
M circles are symmetrical with respect to

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

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Automatic Control Systems
Integral control action

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

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