Question 1 : The band width, in a feedback amplifier.
1. Remains unaffected
2. Decreases by the same amount as the gain increase
3. Increases by the same amount as the gain decrease
4. Decreases by the same amount as the gain decrease
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Question 2 : The mechanism of control of body temperature is non feedback system?
1. True
2. False
3.
4.
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Question 3 : A control system with excessive noise, is likely to suffer from
1. Saturation in amplifying stages
2. Loss of gain
3. Vibrations
4. Oscillations
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Question 4 : Feedback can always reduce the effects of noise and disturbance on system performance?
1. True
2. False
3.
4.
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Question 5 : Feedback can cause a system that is originally stable to become___________
1. Stable
2. Unstable
3. Conditionally stable
4. Either more stable or unstable
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Question 6 : The second derivative input signals modify which of the following?
1. The time constant of the system
2. Damping of the system
3. The gain of the system
4. The time constant and suppress the oscillations
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Question 7 : Which of the following statements is correct for any closed loop system?
1. All the co-efficient can have zero value
2. All the co-efficient are always non-zero
3. Only one of the static error co-efficient has a finite non-zero value
4. None of the mentioned
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Question 8 : Regenerative feedback is also called as_________________
1. Negative feedback
2. Positive feedback
3. No feedback
4. Negative and Positive Feedback
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Question 9 : Feedback always increases the gain?
1. True
2. False
3.
4.
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Question 10 : Feedback control systems are:
1. Insensitive to both forward and feedback path parameter changes
2. Less sensitive to feedback path parameter changes than to forward path parameter changes
3. Less sensitive to forward path parameter changes that to feedback path parameter changes
4. Equally sensitive to forward feedback path parameter changes
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