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Automatic Control Systems

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

1
less than 1
Zero
More than 1

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

zero
less than 1
more than 1
1

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Automatic Control Systems
DC tachogenerator can be used in

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

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Automatic Control Systems
A conditionally stable system is stable for the value of gain between two critical values. It is unstable if

The gain is decreased below lower critical value
Both A and B
None of these
The gain is increased beyond upper critical value

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

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

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Automatic Control Systems
The addition of a pole to the open loop transfer function pulls the root locus

To the left and making the system more stable
Towards right or left depending on the position of new pole
To the right
None of these

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