Question 41 : " A closed loop system is distinguished from open loop system by which of the following?"
1. " Servomechanism"
2. " Feedback"
3. " Output pattern"
4. " Input pattern"
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Question 42 : " The method of choosing compensator is the configuration must be:"
1. " Forward path"
2. " Cascade and feedback compensation"
3. " Feed forward configuration"
4. " All of the mentioned"
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Question 43 : " Pneumatic controller"
1. " Flexible operation"
2. " High torque high speed operation"
3. " Fire and explosion proof operation"
4. " No leakage"
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Question 44 : " For minimizing the transfer function the condition is :"
1. " Second differentiation of the function must be zero"
2. " Second differentiation of the function must be positive"
3. " Second differentiation of the function must be negative"
4. " Second differentiation of the function must be complex"
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Question 45 : " Hydraulic controller:"
1. " Flexible operation"
2. " High torque high speed operation"
3. " Fire and explosion proof operation"
4. " No leakage"
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Question 46 : " The position and velocity errors of a type-2 system are :"
1. " Constant, constant"
2. " Constant, infinity"
3. " Zero, constant"
4. " Zero, zero"
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Question 47 : " The differential term in the riccati equation in infinite regulator is:"
1. " Finite"
2. " Positive"
3. " Infinite"
4. " Zero"
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Question 48 : " As a result of introduction of negative feedback which of the following will not decrease?"
1. " Band width"
2. " Overall gain"
3. " Distortion"
4. " Instability"
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Question 49 : " Tracking problem can be in:"
1. " Infinite state regulators"
2. " Finite state regulator"
3. " Sub-optimal state regulators"
4. " Non-linear regulators"
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Question 50 : " A.C. servomotor resembles"
1. " Two phase induction motor"
2. " Three phase induction motor"
3. " Direct current series motor"
4. " Universal motor"
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