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Automatic Control Systems

Automatic Control Systems
Gain margin and phase margin can be determined from Bode plots as well as Nyquist plot.

False
True

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Automatic Control Systems
The relative stability of a system is given by

Both phase and gain margins
Phase margin alone
Gain margin alone
Either (a) or (b)

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Automatic Control Systems
In the field controlled motor the entire damping comes from

Armature resistance
Back emf
Motor friction and load
Field resistance

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

Either (a) or (b)
LED
LCD
Photodiode

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Automatic Control Systems
Which of the following is open loop system?

System for controlling antirocket missiles
Respiratory system of animal
Aqualing
Wind screen wiper

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

True
False

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