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Automatic Control Systems
A conditionally stable system is stable for the value of gain between two critical values. It is unstable if
The gain is decreased below lower critical value
The gain is increased beyond upper critical value
Both A and B
None of these
The gain is decreased below lower critical value
The gain is increased beyond upper critical value
Both A and B
None of these
Answer
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Related Question
Automatic Control Systems
Transport lag usually exists in
Thermal, hydraulic and pneumatic systems
Pneumatic systems
Hydraulic systems and thermal systems
Thermal systems
Thermal, hydraulic and pneumatic systems
Pneumatic systems
Hydraulic systems and thermal systems
Thermal systems
Answer
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Automatic Control Systems
The distance of poles from origin depends on
Neither A nor B
Uqndamped natural frequency
Both A and B
Damping ratio
Neither A nor B
Uqndamped natural frequency
Both A and B
Damping ratio
Answer
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Automatic Control Systems
In a two phasor servomotor, the direction of rotation of the rotating field depends on
Magnitudes of voltages applied to the two stator windings
None of these
Phase relation of voltages applied to the two stator windings
Both magnitude and phase relationship of voltages applied to the two stator windings
Magnitudes of voltages applied to the two stator windings
None of these
Phase relation of voltages applied to the two stator windings
Both magnitude and phase relationship of voltages applied to the two stator windings
Answer
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Automatic Control Systems
If the poles lie in second quadrant, damping ratio is
less than 1
more than 1
zero
1
less than 1
more than 1
zero
1
Answer
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Automatic Control Systems
In a simple on-off controller with differential gap, the magnitude of differential gap determines
Both (a) and (b)
The life of controller
The level of accuracy
Neither (a) nor (b)
Both (a) and (b)
The life of controller
The level of accuracy
Neither (a) nor (b)
Answer
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