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Automatic Control Systems

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

more than 1
zero
less than 1
1

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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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Automatic Control Systems
Magnetic amplifier is used for

Voltage amplification
Current amplification
Frequency amplification
Power amplification

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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
Transport lag usually exists in

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

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

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

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