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