Control Systems MCQ Questions & Answers

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Each section contains 100 MCQs on Control Systems .

For a stable system having two or more gain crossover frequencies the phase margin is measured at the highest crossover frequency.

A) True B) False

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

In the field controlled motor the entire damping comes from

A) Armature resistance B) Back emf C) Motor friction and load D) Field resistance

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

In Bode plots the frequency at which two asymptotes meet is called corner frequency.

A) True B) False

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Integral control action

A) Removes offset B) May lead to oscillatory response C) Both (a) and (b) D) Neither (a) nor (b)

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Gain margin and phase margin can be determined from Bode plots as well as Nyquist plot.

A) True B) False

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

For type 1 system the velocity lag error is

A) Inversely proportional to bandwidth of system B) Directly proportional to gain constant C) Inversely proportional to gain constant D) Independent of gain constant

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

The effect of adding poles and zeros can be determined quickly by

A) Nichols chart B) Nyquist plot C) Bode plot D) Root locus

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Which of the following can be used as a rotating amplifier in a control system?
1. Amplidyne
2. Separately excited dc generator
3. Synchro
4. Self excited dc generator

A) 3 and 4 B) 1 and 2 C) 1, 2 and 3 D) All

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

In control systems the output of sensor usually, is

A) Analog electrical signal B) Digital electrical signal C) Mechanical signal D) Analog or digital electrical signal

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

M circles are symmetrical with respect to

A) Real and imaginary axis B) M = 1 straight line and real axis C) M = 1 straight line and imaginary axis D) M = 1 straight line

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

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Control Systems MCQ Questions & Answers | ECE