Question 51 : The compensator for the system can be:
1. Electrical
2. Mechanical
3. Hydraulic
4. All of the mentioned
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Question 52 : Which of the following will not decrease as a result of introduction of negative feedback?
1. Instability
2. Bandwidth
3. Overall gain
4. Distortion
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Question 53 : Which among the following represents an illustration of closed loop system?
1. Automatic washing machine
2. Automatic electric iron
3. Bread toaster
4. Electric hair drier
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Question 54 : What is the effect of phase lag compensation on the performance of a servo system?
1. For a given relative stability, the velocity constant is increased
2. For a given relative stability, the velocity constant is decreased
3. The bandwidth of the system is increased
4. The time response is made faster
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Question 55 : Steady state error is usually specified in terms of :
1. Error constants
2. Damping factor
3. Speed of response
4. Bandwidth
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Question 56 : Which terminology deals with the excitation or stimulus applied to the system from an external source for the generation of an output?
1. Input signal
2. Output signal
3. Error signal
4. Feedback signal
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Question 57 : Consider the following systems:
System 1: G(s) =1/ (2s+1) and System 2: G(s) =1/ (5s+1)
The true statement regarding the system is:
1. Bandwidth of the system 1 is greater than the bandwidth of the system 2
2. Bandwidth of the system 1 is lower than the bandwidth of the system 2
3. Bandwidth of both the systems are same
4. Bandwidth of both the systems are infinite
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Question 58 : P+D controller:
1. Introduces offset
2. Increases bandwidth
3. Increases margin of stability
4. Reduces velocity constant
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Question 59 : Operations performed by hydraulic controllers:
1. Flexible operations
2. High torque high speed operations
3. Fire and explosion proof operation
4. All of the mentioned
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Question 60 : A good control system should be sensitive to __________
1. Internal disturbances
2. Environmental parameters
3. Parametric variations
4. Input signals (except noise)
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