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Automatic Control Systems

Automatic Control Systems
Integral control action

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

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

False
True

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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
Load cell
Strain gauge
Thermistor

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Automatic Control Systems
Transport lag usually exists in

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

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Automatic Control Systems
Nichols chart consists of

Constant magnitude loci
Constant phase angle loci
Magnitude and phase angle loci in log-magnitude versus phase diagram
None of these

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