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Automatic Control Systems

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

True
False

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

Back emf
Armature resistance
Motor friction and load
Field resistance

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Automatic Control Systems
In control systems the output of sensor usually, is

Analog electrical signal
Analog or digital electrical signal
Mechanical signal
Digital electrical signal

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

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

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Automatic Control Systems
A system is highly oscillatory if

Gain margin is high and phase margin is 180°
Gain margin is close to 1 or phase margin is zero
Gain margin is high
Gain margin is close to 1

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

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

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