Sampling Theorem Quiz | Sampling Theorem Multiple Choice Questions and Answers

Sports GK Questions and Answers 2024 (Latest Updated)

Awards & Honours GK Questions 2024 (Latest Updated)

Questions
1 A periodic signal is
A Repeats itself at regular intervals
B May be represented by g(t) = g(t + T0)
C Value may be determined at any point
D All of the above

Answer: All of the above
2 Sine wave is a
A Periodic signal
B Deterministic signal
C Aperiodic signal
D Both a and c

Answer: Periodic signal
Advertisement
Article and Schedule Quiz Start Test!
DOWNLOAD CURRENT AFFAIRS PDF FROM APP
3 In Unit impulse function
A Height of pulse goes to infinity
B Area of pulse curve is unity
C Pulse width is zero
D All of the above

Answer: All of the above
4 For a Unit ramp function area of pulse curve is unity
A Starts at time t=0 and linearly increases with t
B Discontinuous at time t=0
C Both a and b
D None of the above

Answer: Starts at time t=0 and linearly increases with t
5 The desired signal of maximum frequency wm centered at frequency w=0 may be recovered if
A Filter has the cut off frequency wm
B The sampled signal is passed through low pass filter
C Both a and b
D None of the above

Answer: Both a and b
6 Calculate the minimum sampling rate to avoid aliasing when a continuous time signal is given by x(t) = 5 cos 400πt
A 400 Hz
B 250 Hz
C 100 Hz
D None of the above

Answer: 400 Hz
7 Calculate the Nyquist rate for sampling when a continuous time signal is given by x(t) = 5 cos 100πt +10 cos 200πt – 15 cos 300πt
A 300Hz
B 150Hz
C 600Hz
D None of the above

Answer: 300Hz
8 A low pass filter is
A Is used to recover signal from sampled signal
B Passes the frequencies lower than the specified cut off frequency
C Rejects higher frequencies
D All of the above

Answer: All of the above
9 The instantaneous sampling
A Has the negligible power content
B Has a train of impulses
C Has the pulse width approaching zero value
D All of the above

Answer: All of the above
10 The sampling technique having the minimum noise interference is
A Natural sampling
B Flat top sampling
C Instantaneous sampling
D None of the above

Answer: Natural sampling
11 Superposition of signals in a linear system refers to the
A Output that is product of all the signals
B Output that is sum of all the signals
C Output that is of highest amplitude of all the signals
D Output that is of largest spectrum of all the signals

Answer: Output that is sum of all the signals
12 Random signals is
A May be specified in time
B Occurrence is random
C Repeat over a period
D None of the above

Answer: Occurrence is random
13 An even function f(x) for all values of x and x holds
A f(x) = f(-x)
B f(x) = f(x)f(-x)
C f(x) = -f(x)
D None of the above

Answer: f(x) = f(-x)
14 Unit step function is
A Exists only for positive side
B Is zero for negative side
C Discontinuous at time t=0
D All of the above

Answer: All of the above
15 The spectrum of the sampled signal may be obtained without overlapping only if
A fs ≥ 2fm
B fs < fm
C fs < 2fm
D fs > fm

Answer: fs ≥ 2fm
16 A distorted signal of frequency fm is recovered from a sampled signal if the sampling frequency fs is
A fs < 2fm
B fs ≥ 2fm
C fs > 2fm
D fs = 2fm

Answer: fs < 2fm
17 The techniques used for sampling are
A Flat top sampling
B Instantaneous sampling
C Natural sampling
D All of the above

Answer: All of the above
18 Types of analog pulse modulation systems are
A Pulse amplitude modulation
B Pulse time modulation
C Frequency modulation
D Both a and b

Answer: Both a and b
19 In pulse amplitude modulation,
A Amplitude of the pulse train is varied
B Width of the pulse train is varied
C Frequency of the pulse train is varied
D None of the above

Answer: Amplitude of the pulse train is varied
20 Pulse time modulation (PTM) includes
A Pulse width modulation
B Pulse position modulation
C Pulse amplitude modulation
D Both a and b

Answer: Both a and b

Random GK Questions

Q. Small farmers in the country have been defined as those farmers having land holding of
Q. The chemical name of baking soda is
Q. Mashelkar Committee was constituted to report on:
Q. Heavy water is used in nuclear reactor as :
Q. A horizontal demand curve is
Q. Which country is the largest producer of coal in the world ?
Assam Direct Recruitment Test Series

Teacher Eligibility Test

Assam Direct Recruitment Test Series