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ESE (IES) Quiz on Control Systems
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Question 1
An electromechanical closed-loop control system has the transfer function
Which one of the following is correct?
Which one of the following is correct?
Question 2
The characteristic equation of second-order sampled data system is given by
F(z) = a2z2 + a1z + a0 = 0, a2 > 0
What are the stability constraints for this system?
1) a2 + a1 + a0 > 0
2) a2 - a1 + a0 > 0
3) |a0| < a2
4) |a0| > a2
5) |a1| < a2
Select the correct answer using the code given below:
F(z) = a2z2 + a1z + a0 = 0, a2 > 0
What are the stability constraints for this system?
1) a2 + a1 + a0 > 0
2) a2 - a1 + a0 > 0
3) |a0| < a2
4) |a0| > a2
5) |a1| < a2
Select the correct answer using the code given below:
Question 3
Match list-| (Name of the control system component)with List-II ( Use of the Component in control System) and slect the correct answer using the code given below:
List-I
A) Amplidyne
B) Potentiometer
C) Stepper motor
D) AC tacho-generator
List-II
1) Feedback element
2) Actuator
3) Control Amplifier
4) Error detector
List-I
A) Amplidyne
B) Potentiometer
C) Stepper motor
D) AC tacho-generator
List-II
1) Feedback element
2) Actuator
3) Control Amplifier
4) Error detector
Question 4
Assertion (A) : For a prototype second order system, the larger the bandwidth, the faster the system will respond.
Reason (R) : Bandwidth and rise time are inversely proportional
Reason (R) : Bandwidth and rise time are inversely proportional
Question 5
Which one of the following statements is correct of phase-shift type and Wein bridge type R-C oscillators?
Question 6
Consider the following statements :
The gain cross-over point is the point where
1) the magnitude
in polar plot
2) the magnitude curve of G(jw) crosses zero dB line in Bode plot.
3) magnitude vs phase plot touches the zero dB loci in Nichol’s chart.
Which of the statements given above are correct?
The gain cross-over point is the point where
1) the magnitude
in polar plot 2) the magnitude curve of G(jw) crosses zero dB line in Bode plot.
3) magnitude vs phase plot touches the zero dB loci in Nichol’s chart.
Which of the statements given above are correct?
Question 7
match List-| (Polar Plot of system ) with List-|| (System type) and select the correct answer using the code given below the lists:
List-|
A)
B)
C)
List-||
1) Type 0
2) Type 1
3) Type 2
List-|
A)
B)
C)
List-||
1) Type 0
2) Type 1
3) Type 2
Question 8
The block diagram for a particular control system is shown in the below figure. What is the transfer function C(s)/R(s) for this system?
Question 9
Consider the following statements made on the basis of root locus analysis:
1) The intersection of asymptotes must always be on the real axis.
2) The asymptotes of root loci refer to the angle of root loci when gain K is zero.
Which of the statements given above is/are correct?
1) The intersection of asymptotes must always be on the real axis.
2) The asymptotes of root loci refer to the angle of root loci when gain K is zero.
Which of the statements given above is/are correct?
Question 10
Which one of the following is correct?
The value of the system gain at any point on a root locus can be obtained as a
The value of the system gain at any point on a root locus can be obtained as a
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Mar 31ESE & GATE EE
