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 33 of 48

Discover more Topics under Electronics and Communication Engineering

Q321.
Examine the following statements

1. A small size hydraulic actuator can develop good torque.
2. It is easy to maintain a hydraulic system leak proof.
3. Both linear and rotatary hydraulic actuators are available.
4. Hydraulic power is more easily available than electric power.

Which of the above statements are correct?

a.

all

b.

1 and 2 only

c.

1 and 3 only

d.

2, 3 and 4 only

Discuss
Answer: (c).1 and 3 only
Q322.
Consider the following statements regarding negative feedback

1. It increases system gain
2. It improves sensitivity
3. It improves system stability

Which of these are not correct?

a.

all

b.

1, 2

c.

1, 3

d.

1 only

Discuss
Answer: (d).1 only
Q323.
Which of the following are applications of position control systems?

a.

Control of sheet and metal thickness in hot rolling mill

b.

Missile guidance of ships

c.

Radar tracking system

d.

All of the above

Discuss
Answer: (d).All of the above
Q324.
Assertion (A): Increasing the system gain improves steady state behaviour but may result in instability.

Reason (R): A compensator is inserted into a system to ensure specified performance.

a.

Both A and R are correct and R is correct explanation of A

b.

Both A and R are correct but R is not correct explanation of A

c.

A is correct but R is wrong

d.

R is correct but A is wrong

Discuss
Answer: (b).Both A and R are correct but R is not correct explanation of A
Q325.
Assertion (A): Inverse Laplace transform can be found from P(s) by inversion integral.

Reason (R): The function f(t) is assumed to be zero for t < 0.

a.

Both A and R are correct and R is correct explanation of A

b.

Both A and R are correct but R is not correct explanation of A

c.

A is correct but R is wrong

d.

R is correct but A is wrong

Discuss
Answer: (b).Both A and R are correct but R is not correct explanation of A
Q326.
Assertion (A): Derivative control action is also called rate control and has an anticipatory character.

Reason (R): Derivative control amplifies noise signals.

a.

Both A and R are correct and R is correct explanation of A

b.

Both A and R are correct but R is not correct explanation of A

c.

A is correct but R is wrong

d.

R is correct but A is wrong

Discuss
Answer: (b).Both A and R are correct but R is not correct explanation of A
Q327.
Assertion (A): When a PID controller is added to a system, the peak overshoot to step input cannot be determined easily.

Reason (R): Use of PID controller introduces a zero in the forward path.

a.

Both A and R are correct and R is correct explanation of A

b.

Both A and R are correct but R is not correct explanation of A

c.

A is correct but R is wrong

d.

R is correct but A is wrong

Discuss
Answer: (a).Both A and R are correct and R is correct explanation of A
Q328.
The slope of log magnitude asymptote changes by - 40 dB/ decade at a certain frequency and the error between asymptote and actual curve is - 6 dB. This means that

a.

a double pole is present

b.

a pair of complex conjugate poles is present

c.

either a double pole or a pair of complex conjugate poles is present

d.

either a pole or zero at that frequency is present

Discuss
Answer: (a).a double pole is present
Q329.
Friction forces acts in a direction

a.

opposite to that of velocity

b.

same as that of velocity

c.

at right angle to that of velocity

d.

partly opposite and partly at right angle to the direction of velocity

Discuss
Answer: (a).opposite to that of velocity
Q330.
For a second order system delay time td is the time required to reach

a.

half the final value for the very first time

b.

the final value for the very first time

c.

90% of the final value for the very first time

d.

none of the above

Discuss
Answer: (a).half the final value for the very first time
Page 33 of 48