Effect of Adding a Zero to a System MCQ’s

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This set of Control Systems Multiple Choice Questions & Answers (MCQs) focuses on “Effect of Adding a Zero to a System”.

1. Addition of zero increases the stability.
a) True
b) False

2. Zeroes are defined as:
a) Roots of the denominator of the closed loop transfer function
b) Roots of the numerator of the closed loop transfer function
c) Parts of the numerator
d) Parts of the denominator

3. Assertion (A): The zeroes on the real axis near the origin are generally avoided in design.
Reason (R): In a sluggish system introduction of zeroes can improve the transient response
a) Both A and R are true and R is correct explanation of A
b) Both A and R are true but R is not correct explanation of A
c) A is true but R is false
d) A is false but R is true

4. As zero moves sufficiently left from the origin the effect of zero becomes less pronounced.
a) True
b) False

5. A control system is generally met with the time response specifications:
a) Steady state accuracy
b) Damping factor
c) Setting time
d) All of the mentioned

6. Steady state accuracy is determined by suitable choice of____________
a) Steady error
b) Error constants
c) Damping
d) Transient error

7. If number of poles are greater than number of zeroes then the system is known as ______________
a) Stable system
b) Unstable system
c) Minimum phase system
d) Non-minimum phase system

8. Steady state accuracy specified in terms of:
a) Steady state error
b) Damping ratio
c) Natural frequency
d) All of the mentioned

9. Damping factor specifies:
a) Peak overshot to step input.
b) Steady state error
c) Damping ratio
d) Natural frequency

10. If rise time is also taken into consideration it should be ____________ to the settling time.
a) Inconsistent
b) Consistent
c) Perfect
d) Unique

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