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.
Consider the following statements about root locus

1. The root locus is symmetrical about real axis.
2. If a root locus branch moves along the real axis from an open loop pole to zero or to infinity, this root locus branch is called real root branch.
3. The breakaway points of the root locus are the solutions of dK/dS = 0

Which statements out of above are correct?
Discuss
Answer: (c).1, 2 and 3
Q352.
In Bode plots the frequency at which two asymptotes meet is called corner frequency.
Discuss
Answer: (a).True
Q353.
In Bode plots, frequency is plotted on log scale.
Discuss
Answer: (a).True
Q354.
For a type 1 system and unit step input, the steady state error is
Discuss
Answer: (a).0
Q355.
Nichol's chart is symmetric about - 180° axis.
Discuss
Answer: (a).True
Q356.
If the Nyquist plot encircles the (-1 + j0) point clockwise once or more number of times, the system is unstable.
Discuss
Answer: (a).True
Q357.
Which dc servomotor requires strongest permanent magnet?
Discuss
Answer: (c).Surface wound with stationary rotor
Discuss
Answer: (c).magnitude and phase angle loci in log-magnitude versus phase diagram
Q359.
Consider the following statements about root locus

1. The intersection of root locus branches with the imaginary axis can be determined by the use of Routh criterion
2. Segments of real axis having an odd number of real axis open loop poles plus zeros to their right are not parts of root locus
3. The number of root locus branches terminating on infinity is always zero

Which of the above statements are correct?
Discuss
Answer: (b).1 and 2 only
Q360.
The poles with greater displacement from the real axis correspond to
Discuss
Answer: (a).higher frequencies of oscillations