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Automatic Control Systems

Automatic Control Systems
In Bode plots the frequency at which two asymptotes meet is called corner frequency.

True
False

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Automatic Control Systems
DC tachogenerator can be used in

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

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Automatic Control Systems
Magnetic amplifier is used for

Voltage amplification
Frequency amplification
Current amplification
Power amplification

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

Synchro
Thermistor
Strain gauge
Load cell

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

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

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

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

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