Electrical Control Systems MCQ Questions & Answers

11

By which of the following the control action is determined when a man walks along a path?

A) Brain B) Hands C) Legs D) Eyes

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Answer & Solution

Answer: Option D

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12

In a control system integral error compensation _______ steady state error

A) increases B) minimizes C) does not have any effect on D) any of the above

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Answer & Solution

Answer: Option B

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13

The type-2 system has ________ at the origin.

A) No net pole B) Net pole C) Simple pole D) Two poles

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Answer & Solution

Answer: Option D

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14

Which of the following should be done to make an unstable system stable ?

A) The gain of the system should be decreased B) The gain of the system should be increased C) The number of poles to the loop transfer function should be increased D) The number of zeros to the loop transfer function should be increased

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Answer & Solution

Answer: Option B

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15

With feedback _____ increases.

A) system stability B) sensitivity C) gain D) effects of disturbing signals

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Answer & Solution

Answer: Option A

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16

Which of the following is an electromagnetically device ?

A) Induction relay B) Thermocouple C) LVDT D) Any of the above E) None of the above

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Answer & Solution

Answer: Option C

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17

Which of the following can be measured by LVDT?

A) Displacement B) Velocity C) Acceleration D) Any of the above

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Answer & Solution

Answer: Option D

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18

The frequency and time domain are related through which of the following?

A) Laplace Transform and Fourier Integral B) Laplace Transform C) Fourier Integral D) Either (B) or (C)

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Answer & Solution

Answer: Option A

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19

Addition of zeros in transfer function causes which of the following?

A) Lead-compensation B) Lag-compensation C) Lead-lag compensation D) None of the above

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Answer & Solution

Answer: Option A

Solution:

Addition of zeros in transfer function causes lead-compensation.

Lead-compensation is achieved by adding zeros to the transfer function, which advances the phase of the system and improves the transient response.

In a lead-compensated system, the zero increases the system's responsiveness by increasing the phase margin, leading to a faster response.

Lag-compensation and lead-lag compensation involve different configurations of poles and zeros to achieve specific performance characteristics.

20

In force-voltage analogy, velocity is analogous to

A) current B) charge C) inductance D) capacitance

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Answer & Solution

Answer: Option A

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Electrical Control Systems MCQ Questions & Answers | Electrical Engineering