## Transfermers mcq questions and answers

The transfer function of a system represents the relationship between the system’s:

A. Inputs and outputs

B. Resistance and capacitance

C. Voltage and current

D. Energy and power

Answer: A

In transfer function representation, Laplace transforms are used to convert:

A. Time-domain signals to frequency-domain signals

B. AC signals to DC signals

C. Digital signals to analog signals

D. Voltage to current signals

Answer: A

The transfer function of a system is a ratio of:

A. Current to voltage

B. Voltage to current

C. Power to energy

D. Output to input

Answer: D

The transfer function of a system can be obtained by taking the Laplace transform of the system’s:

A. Differential equation

B. Integral equation

C. Algebraic equation

D. Trigonometric equation

Answer: A

The poles of a transfer function are the values of s for which the transfer function becomes:

A. Zero

B. Infinity

C. Negative

D. Positive

Answer: B

The transfer function H(s) = (s + 1) / (s^2 + 3s + 2) has how many poles?

A. 1

B. 2

C. 3

D. 4

Answer: B

The zeros of a transfer function are the values of s for which the transfer function becomes:

A. Zero

B. Infinity

C. Negative

D. Positive

Answer: A

The transfer function H(s) = (s – 2) / (s^2 + 4s + 4) has how many zeros?

A. 1

B. 2

C. 3

D. 4

Answer: A

The transfer function of a first-order system has how many poles?

A. 0

B. 1

C. 2

D. It depends on the system

Answer: B

The transfer function of a first-order system is given by H(s) = k / (s + a). The time constant of the system is equal to:

A. k

B. a

C. 1/a

D. 1/k

Answer: C

A transfer function with a high gain at low frequencies is likely to have a:

A. Low-pass behavior

B. High-pass behavior

C. Band-pass behavior

D. Band-stop behavior

Answer: A

The Bode plot is a graphical representation of the transfer function in the:

A. Time domain

B. Frequency domain

C. Voltage domain

D. Current domain

Answer: B

The phase margin of a system indicates its:

A. Stability

B. Gain

C. Bandwidth

D. Damping ratio

Answer: A

The gain margin of a system indicates its:

A. Stability

B. Phase shift

C. Bandwidth

D. Damping ratio

Answer: A

A system is said to be stable if all the poles of its transfer function are located in the:

A. Left-half of the complex plane

B. Right-half of the complex plane

C. Imaginary axis

D. Real axis

Answer: A

The transfer function H(s) = (s + 1) / (s^2 + s + 1) represents a:

A. Low-pass filter

B. High-pass filter

C. Band-pass filter

D. Band-stop filter

Answer: C

The transfer function H(s) = 1 / (s^2 + 2s + 2) represents a:

A. Low-pass filter

B. High-pass filter

C. Band-pass filter

D. Band-stop filter

Answer: D

The transfer function H(s) = (s + 1) / (s^2 + s + 1) has a second-order system response with a:

A. Overdamped response

B. Underdamped response

C. Critically damped response

D. Undetermined response

Answer: B

The transfer function H(s) = 1 / (s + 2) represents a system with a:

A. First-order response

B. Second-order response

C. Third-order response

D. Fourth-order response

Answer: A

The Nyquist stability criterion is used to analyze the stability of a system based on the:

A. Frequency response

B. Step response

C. Impulse response

D. Ramp response

Answer: A