Q.1
Given x (t) = [2 + e-3t] u (t). The final value of x(t) is ___________
  • a) 2
  • b) 3
  • c) e-3t
  • d) 0
Q.2
The Fourier series of the given signal is _______________
Questionsignals-systems-questions-answers2.jpg
  • a) -4/π sin x
  • b) 4/π sin x
  • c) 4/π cos x
  • d) -4/π cos x
Q.3
For the circuit given below, the effective inductance of the circuit across the terminal AB, is ___________
Questionsignals-systems-questions-answers3.jpg
  • a) 9 H
  • b) 21 H
  • c) 11 H
  • d) 6 H
Q.4
For the circuit given below, the inductance measured across the terminals 1 and 2 wasH with open terminals 3 andIt wasH when terminals 3 and 4 were short-circuited. Both the inductors are having inductances 2H. The coefficient of coupling is ______________
Questionsignals-systems-questions-answers4.jpg
  • a) 1
  • b) 0.707
  • c) 0.5
  • d) Inderminate due to insufficient data
Q.5
Q meter operator is the principle of __________
Questionsignals-systems-questions-answers5.jpg
  • a) Series resonance
  • b) Current resonance
  • c) Self-inductance
  • d) Eddy currents
Q.6
The probability cumulative distribution function must be monotone as well as ___________
  • a) Increasing
  • b) Decreasing
  • c) Non-increasing
  • d) Non-decreasing
Q.7
The impedance seen by the source in the circuit is given by __________
  • a) (0.54 + j0.313) Ω
  • b) (4 – j2) Ω
  • c) (4.54 – j1.69) Ω
  • d) (4 + j2) Ω
Q.8
In the circuit given below, the capacitor is initially having a charge ofC. 1 second after the switch is closed, the current in the circuit is ________
Questionsignals-systems-questions-answers8.jpg
  • a) 14.7 A
  • b) 18.5 A
  • c) 40.0 A
  • d) 50.0 A
Q.9
Convolution is used to find ____________
Questionsignals-systems-questions-answers9.jpg
  • a) Impulse of an LTI system
  • b) Frequency response of an LTI system
  • c) Time response of an LTI system
  • d) Phase response of an LTI system
Q.10
The Fourier transform of a rectangular function is ___________
  • a) Another rectangular pulse
  • b) Triangular pulse
  • c) Sinc function
  • d) Impulse
Q.11
The property of Fourier Transform which states that the compression in time domain is equivalent to expansion in the frequency domain is ___________
  • a) Duality
  • b) Scaling
  • c) Time scaling
  • d) Frequency shifting
Q.12
A coil of inductanceH, resistanceΩ is connected as shown in the figure. After the switch S has been in connection with point 1 for a very long time, it is moved to point 2 at t=For the value of R obtained, the time taken for% of the stored energy dissipated is close to?
  • a) 0.10 s
  • b) 0.15 s
  • c) 0.50 s
  • d) 1.0 s
Q.13
The function which has its Fourier transform, Laplace transform, and Z transform unity is __________
Questionsignals-systems-questions-answers13.jpg
  • a) Gaussian
  • b) Impulse
  • c) Sinc
  • d) Pulse
0 h : 0 m : 1 s