Transfer Function Mathematical Modelling - Electronic Engineering (MCQ) questions & answers

1)   Which among the following are the elements of rotational motion?

a. Mass, Spring, Friction
b. Inertia, Damper, Spring
c. Work, Energy, Power
d. Force, Pressure, Viscocity
Answer  Explanation 

ANSWER: Inertia, Damper, Spring

Explanation:
No explanation is available for this question!
2)   If an impulse response of a system is e-5t, what would be its transfer function?

a. 1/ s - 5
b. 1/ s + 5
c. (s+1) / (s+5)
d. (s2 - 5s)/ (s-5)
Answer  Explanation 

ANSWER: 1/ s + 5

Explanation:
No explanation is available for this question!
3)   The fundamental function of a tachometer is the conversion of angular _______ into voltage

a. Velocity
b. Displacement
c. Acceleration
d. Current
Answer  Explanation 

ANSWER: Velocity

Explanation:
No explanation is available for this question!
4)   Laplace transform of an impulse response is regarded as  _____function of the system

a. Analytic
b. Parabolic
c. Transfer
d. Hypothetical
Answer  Explanation 

ANSWER: Transfer

Explanation:
No explanation is available for this question!
5)   If a signal is passed through an integrator, it _____the amplitude of noise signal.

a. Enhances
b. Reduces
c. Stabilizes
d. Factorizes
Answer  Explanation 

ANSWER: Reduces

Explanation:
No explanation is available for this question!
6)   For the transfer function given below, where does the zero of the system lie?

G(s) = 5s -1 / s2 + 5s + 4

a. s = -1 & s = -1/4
b. s = -4 & s = -1
c. s = 1/5
d. s = -1/5
Answer  Explanation 

ANSWER: s = 1/5

Explanation:
No explanation is available for this question!
7)   By equating the denominator of transfer function to zero, which among the following will be obtained?

a. Poles
b. Zeros
c. Both a and b
d. None of the above
Answer  Explanation 

ANSWER: Poles

Explanation:
No explanation is available for this question!
8)   Basically, poles of transfer function are the laplace transform variable values which causes the transfer function to become ___________

a. Zero
b. Unity
c. Infinite
d. Average value
Answer  Explanation 

ANSWER: Infinite

Explanation:
No explanation is available for this question!
9)   The output is said to be zero state response because ______conditions are made equal to zero.

a. Initial
b. Final
c. Steady state
d. Impulse response
Answer  Explanation 

ANSWER: Initial

Explanation:
No explanation is available for this question!
10)   How is an output represented in the control systems?

a. r(t)
b. c(t)
c. x(t)
d. y(t)
Answer  Explanation 

ANSWER: c(t)

Explanation:
No explanation is available for this question!

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