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Automatic Control Systems

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

Charge
Electrostatic energy
Voltage
Magnetic flux linkage

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Automatic Control Systems
The sensor generally used in incremental optical encoder is

Photodiode
LED
LCD
Either (a) or (b)

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Automatic Control Systems
Lag compensation permits a high gain at low frequencies.

True
False

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

Thermistor
Synchro
Load cell
Strain gauge

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Automatic Control Systems
A lead compensator

Increases the stability margin and speeds up the transient-response.
None of these
Speeds up the transient response
Increases the stability margin

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Automatic Control Systems
M circles are symmetrical with respect to

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

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