Question 21 : " The first order control system, which is well designed, has a"
1. " Small bandwidth"
2. " Negative time constant"
3. " Large negative transfer function pole"
4. " None of the mentioned"
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Question 22 : " A.C. servomotor is basically a"
1. " Universal motor"
2. " Single phase induction motor"
3. " Two phase induction motor"
4. " Three phase induction motor"
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Question 23 : " When human being tries to approach an object, his brain acts as,"
1. " An error measuring device"
2. " A controller"
3. " An actuator"
4. " An amplifier"
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Question 24 : " The values of the characteristic equation is given by:"
1. " Eigen values"
2. " State matrix"
3. " Eigen vector"
4. " None of the mentioned"
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Question 25 : " Consider the following statements relating to synchro's:
1. The rotor of the control transformer is either disc shaped
2. The rotor of the transmitter is so constructed as to have a low magnetic reluctance
3. Transmitter and control transformer pair is used as an error detector
Which of these statements are correct?"
1. " 1,2 and3"
2. " 1 and 2"
3. " 2 and3"
4. " 1 and 3"
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Question 26 : " An amplidyne can give which of the following characteristics?"
1. " Constant current"
2. " Constant voltage"
3. " Constant current as well as constant voltage"
4. " Constant current, constant voltage and constant power"
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Question 27 : " Which of the following can be used as a tacho generator in control systems?"
1. " Microsyn"
2. " DC servomotor"
3. " AC servomotor"
4. " Magnetic Amplifier"
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Question 28 : The transfer function for the state representation of the continuous time LTI system:
dq(t)/dt=Aq(t)+Bx(t)
Y(t)=Cq(t)+Dx(t)
is given by:
1. C(sI-A)^-1B+D
2. B(sI-A)^-1B+D
3. C(sI-A)^-1B+A
4. D(sI-A)^-1B+C
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Question 29 : " The matrix constructed by placing the Eigen vectors together is diagonalizing matrix."
1. " True"
2. " False"
3.
4.
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Question 30 : " An electric motor is developing 10KW at a speed of 900rpm. The torque available at the shaft is:"
1. " 106 N-m"
2. " 66 N-m"
3. " 1600 N-m"
4. " 90 N-m"
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