Automatic Control Systems MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Automatic Control Systems, a fundamental topic in the field of Electronics and Communication Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Automatic Control Systems MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Automatic Control Systems mcq questions that explore various aspects of Automatic Control Systems problems. Each MCQ is crafted to challenge your understanding of Automatic Control Systems principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Electronics and Communication Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Automatic Control Systems MCQs are your pathway to success in mastering this essential Electronics and Communication Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Automatic Control Systems. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Automatic Control Systems knowledge to the test? Let's get started with our carefully curated MCQs!

Automatic Control Systems MCQs | Page 36 of 48

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Q351.
Assertion (A): The root locus of a control system is symmetrical about real axis.

Reason (R): For all polynomials with real coefficients, complex poles always occur in conjugate pairs.
Discuss
Answer: (a).Both A and R are correct and R is correct explanation of A
Q352.
In log magnitude Bode diagram the slope of high frequency asymptote of (1 + jฯ‰T) is
Discuss
Answer: (a).20 dB per decade
Q353.
Assertion (A): The time response, usually, is slower with lag compensation.

Reason (R): The natural undamped frequency and bandwidth are increased.
Discuss
Answer: (d).R is correct but A is wrong
Q354.
For the factor 1/(1 + 2jฯ‰) the corner frequency is
Discuss
Answer: (a).0.5 rad/sec
Discuss
Answer: (c).high frequency range
Q356.
A stepper motor is essentially
Discuss
Answer: (a).a synchronous motor
Discuss
Answer: (a).input is angular position of rotor shaft and output is stator voltages
Discuss
Answer: (c).negative imaginary axis
Q359.
For an unstable system the gain margin is indicative of how much the gain should be decreased to make the system stable.
Discuss
Answer: (a).True
Q360.
For a stable system having two or more gain crossover frequencies the phase margin is measured
Discuss
Answer: (b).at highest gain crossover frequency