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Automatic Control Systems

Automatic Control Systems
DC tachogenerator can be used in

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

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Automatic Control Systems
In force current analogy, displacement x is analogous to

Magnetic flux linkage
Electrostatic energy
Voltage
Charge

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

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Automatic Control Systems
Transport lag usually exists in

Thermal, hydraulic and pneumatic systems
Thermal systems
Pneumatic systems
Hydraulic systems and thermal systems

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Automatic Control Systems
In the field controlled motor the entire damping comes from

Armature resistance
Field resistance
Back emf
Motor friction and load

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MORE MCQ ON Automatic Control Systems

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