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Automatic Control Systems

Automatic Control Systems
If poles lie in first quadrant, damping ratio is

More than 1
less than 1
Zero
1

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

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

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Automatic Control Systems
Which of the following can be used as a rotating amplifier in a control system? 1. Amplidyne 2. Separately excited dc generator 3. Synchro 4. Self excited dc generator

1 and 2
All
1, 2 and 3
3 and 4

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

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

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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
The poles with greater displacement from the real axis correspond to

Lower frequencies of oscillations
Higher frequencies of oscillations
Unbounded output
Stable response

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