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Automatic Control Systems

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

less than 1
zero
more than 1
1

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Automatic Control Systems
For type 1 system the velocity lag error is

Independent of gain constant
Directly proportional to gain constant
Inversely proportional to gain constant
Inversely proportional to bandwidth of system

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Automatic Control Systems
For any transfer function, the constant phase angle loci are

Neither (a) nor (b)
A family of circles
Either (a) or (b)
A family of straight lines

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Automatic Control Systems
In force current analogue, mechanical mobility is analogous to

Impedance Z
Reactance X
Admittance Y
Conductance G

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Automatic Control Systems
DC tachogenerator can be used in

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

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Automatic Control Systems
Magnetic amplifier is used for

Frequency amplification
Power amplification
Voltage amplification
Current amplification

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