Explore topic-wise MCQs in Analog Electronic Circuits.

This section includes 31 Mcqs, each offering curated multiple-choice questions to sharpen your Analog Electronic Circuits knowledge and support exam preparation. Choose a topic below to get started.

1.

If G(f) represents the Fourier Transform of a signal g (t) which is real and oddsymmetric in time, then G (f) is

A. imaginary.
B. complex.
C. real and non-negative.
D. real.
Answer» B. complex.
Discussion
2.

slotted antenna is used for

A. UHF
B. VHF
C. None of the above.
D. Both VHF & UHF
Answer» E.
Discussion
3.

Two sequences x1 (n) and x2 (n) are related by x2 (n) = x1 (- n). In the z- domain, theirROC’s are

A. reciprocal of each other.
B. the same.
C. complements of each other
D. negative of each other.
Answer» B. the same.
Discussion
4.

Duration of vertical blanking is

A. 0.2 milli second
B. 4.7 m second
C. None of the above.
D. 1.6 milli second
Answer» E.
Discussion
5.

The step response of a LTI system when the impulse response h(n) is unit stepu(n) is

A. n
B. n 1
C. 2n
D. n-1
Answer» C. 2n
Discussion
6.

The system characterized by the equation y(t ) = ax(t ) b is

A. linear if b > 0.
B. linear for any value of
C. non-linear.
D. linear if b < 0.
Answer» D. linear if b < 0.
Discussion
7.

A shift register can be used for ?

A. Parallel to serial conversion
B. Serial to parallel conversion
C. All of the above
D. Digital delay line
Answer» E.
Discussion
8.

If f ( t ) = A d( t - a ), F( s ) is

A. A e - as
B. A e as
C. A a e -as
D. A a e as
Answer» B. A e as
Discussion
9.

If , the coefficient of term e - t in f ( t ) will be

A. 1
B. 0
C. 0.5
D. 2/3
Answer» E.
Discussion
10.

A signal g ( t ) = A then g ( t ) is a

A. energy signal
B. power signal
C. neither energy nor power signal
D. insufficient data
Answer» C. neither energy nor power signal
Discussion
11.

Two function g 1 ( t ) and g 2 ( t ) with correlation of 6 has average power of 4 and 5 respectively. The power of g 1 ( t ) + g 2 ( t ) is

A. 9
B. 21
C. 3
D. 15
Answer» C. 3
Discussion
12.

If , the terms in f ( t ) will have

A. e - t and e -2 t
B. e t and e 2 t
C. te - t and te -2 t
D. none of the above
Answer» B. e t and e 2 t
Discussion
13.

Inverse Laplace transform of is

A. 2 exp (- 2.5 t ) cosh (0.5 t )
B. exp (- 2 t ) + exp (- 3 t )
C. 2 exp (- 2.5 t ) sinh (0.5 t )
D. 2 exp (- 2.5 t ) cos 0.5 t
Answer» C. 2 exp (- 2.5 t ) sinh (0.5 t )
Discussion
14.

The analog signal given below is sampled by 600 samples per second for m ( t ) = 3 sin 500 p t + 2 sin 700 p t then folding frequency is

A. 500 Hz
B. 700 Hz
C. 300 Hz
D. 1400 Hz
Answer» D. 1400 Hz
Discussion
15.

A signal m ( t ) is multiplied by a sinusoidal waveform of frequency f c such that v ( t )= m ( t ) cos 2 p f c t If Fourier transform of m ( t ) is M( f ), Fourier transform of v ( t ) will be

A. 0.5 M( f + f c )
B. 0.5 M( f - f c )
C. 0.5 M( f + f c ) + 0.5 M( f - f c )
D. 0.5 M( f - f c ) + 0.5 M( f - f c )
Answer» D. 0.5 M( f - f c ) + 0.5 M( f - f c )
Discussion
16.

If I ( s ) , the final value of i ( t ) is

A. 5A
B. 12.5 A
C. 0.05 A
D. 1250 A
Answer» C. 0.05 A
Discussion
17.

If

A. - 12
B. 12
C. 20
D. - 20
Answer» B. 12
Discussion
18.

In Laplace transform, multiplication by e - at in time domain becomes

A. translation by a in s domain
B. translation by (- a ) in s domain
C. multiplication by e -as in s domain
D. none of the above
Answer» B. translation by (- a ) in s domain
Discussion
19.

The analog signal m ( t ) is given below m ( t ) = 4 cos 100 p t + 8 sin 200 p t + cos 300 p t , the Nyquist sampling rate will be

A. 1/100
B. 1/200
C. 1/300
D. 1/600
Answer» D. 1/600
Discussion
20.

For the discrete time system of the given figure

A. y k - 0.5 y k - 1 - 0.25 y k - 2 = u k
B. y k + 0.5 y k - 1 - 0.25 y k - 2 = u k
C. y k - 0.5 y k - 1 + 0.25 y k - 2 = u k
D. y k + 0.5 y k - 1 + 0.25 y k - 2 = u k
Answer» D. y k + 0.5 y k - 1 + 0.25 y k - 2 = u k
Discussion
21.

If then for this to be true x ( t ) is

A. exp ( j 2 p f/t )
B. exp (- j 2 p f/t )
C. exp ( j 2 p ft )
D. exp (- j 2 p f/t )
Answer» D. exp (- j 2 p f/t )
Discussion
22.

If I ( s ) , initial value of i ( t ) is

A. 5A
B. 12.5 A
C. 0.05 A
D. 1250 A
Answer» B. 12.5 A
Discussion
23.

The continuous time system with impulse response h ( t ) = is stable, for n is even, when

A. a = 0
B. a > 0
C. a < 0
D. a ? 0
Answer» D. a ? 0
Discussion
24.

If transfer function of a system is H( z ) = 6 + z -1 + z -2 then system is

A. minimun phase
B. maximum phase
C. mixed phase
D. none
Answer» B. maximum phase
Discussion
25.

The z -transform of a particular signal is given where The system after implementation will be

A. casual and stable
B. non-casual and stable
C. non-casual and unstable
D. casual and unstable
Answer» B. non-casual and stable
Discussion
26.

In the given figure the ratio T/ d is the duty factor.

A. True
B. False
C. -
D. -
Answer» C. -
Discussion
27.

A first order system will never be able to give a __________ response

A. 1, 2, 3 true
B. 1 and 3 true, 2 false
C. 1, 2 are true 3 is false
D. 1, 2 are false, 3 is true
Answer» D. 1, 2 are false, 3 is true
Discussion
28.

In an ac circuit the fundamental component of current wave lags the corresponding voltage wave by 20°. The third harmonic component of current wave lags the corresponding voltage by an angle.

A. less than 20°
B. more than 20°
C. equal to 20°
D. equal to or more than 20°
Answer» C. equal to 20°
Discussion
29.

A voltage V( t ) is a Gaussian ergodic random process with a mean of zero and a variance of 4 volt 2 . If it is measured by a dc meter. The reading will be

A. 0
B. 4
C. 2
D. 2
Answer» B. 4
Discussion
30.

An energy signal has G( f ) = 10. Its energy density spectrum is

A. 10
B. 100
C. 50
D. 20
Answer» C. 50
Discussion
31.

What about the stability of system in

A. system is stable
B. unstable
C. stable at 0.4
D. cant say
Answer» B. unstable
Discussion