When x(t ) is said to be non periodic signal?

If the equation x (t) = x (t + T) is satisfied for only odd values of T

If the equation x (t) = x (t + T) is satisfied for all values of T

If the equation x (t) = x (t + T) is satisfied for only one value of T

If the equation x (t) = x (t + T) is satisfied for no values of T

If the equation x (t) = x (t + T) is satisfied for only odd values of T

Which of the following is true for complex-valued function?

X (-t) = ‚Äö√Ñ√∂‚àö√ë‚àö¬® x(t)

What is single-valued function?

A single pattern is followed by after ‚Äö√Ñ√∂‚àö√ë‚àö‚â§t‚Äö√Ñ√∂‚àö√ë‚àö¬• intervals

Single value for all instants of time

Unique value for every instant of time

A single pattern is followed by after ‚Äö√Ñ√∂‚àö√ë‚àö‚â§t‚Äö√Ñ√∂‚àö√ë‚àö¬• intervals

Different pattern of values is followed by after ‚Äö√Ñ√∂‚àö√ë‚àö‚â§t‚Äö√Ñ√∂‚àö√ë‚àö¬• intervals of time

38 + Mcqs in Classification Signals in Signals Systems Page 1 McqOptions

1.	What is the period of cos2t+sin3t?
A.	pi
B.	2*pi
C.	3*pi
D.	4*pi
Answer» C. 3*pi

Discussion

2.	x(t) or x(n) is defined to be an energy signal, if and only if the total energy content of the signal is a ___________
A.	Finite quantity
B.	Infinite
C.	Zero
D.	None of the mentioned
Answer» B. Infinite

Discussion

3.	All energy signals will have an average power of ___________
A.	Infinite
B.	Zero
C.	Positive
D.	Cannot be calculated
Answer» C. Positive

Discussion

4.	Let x1(t) and x2(t) be periodic signals with fundamental periods T1 and T2 respectively. Then the fundamental period of x(t)=x1(t)+x2(t) is?
A.	LCM of T1 and T2
B.	HCF of T1and T2
C.	Product of T1 and T2
D.	Ratio of T1 to T2
Answer» B. HCF of T1and T2

Discussion

5.	Let x1(t) and x2(t) be periodic signals with fundamental periods T1 and T2 respectively. Which of the following must be a rational number for x(t)=x1(t)+x2(t) to be periodic?
A.	T1+T2
B.	T1-T2
C.	T1/T2
D.	T1*T2
Answer» D. T1*T2

Discussion

6.	For a continuous time signal x(t) to be periodic with a period T, then x(t+mT) should be equal to ___________
A.	x(-t)
B.	x(mT)
C.	x(mt)
D.	x(t)
Answer» E.

Discussion

7.	Which of the following is the odd component of the signal x(t)=e(jt)?
A.	cost
B.	j*sint
C.	j*cost
D.	sint
Answer» C. j*cost

Discussion

8.	The even part of a signal x(t) is?
A.	x(t)+x(-t)
B.	x(t)-x(-t)
C.	(1/2)*(x(t)+x(-t))
D.	(1/2)*(x(t)-x(-t))
Answer» D. (1/2)*(x(t)-x(-t))

Discussion

9.	The deflection voltage of an oscilloscope is a ‘deterministic’ signal.
A.	True
B.	False
Answer» B. False

Discussion

10.	Which of the following is done to convert a continuous time signal into discrete time signal?
A.	Modulating
B.	Sampling
C.	Differentiating
D.	Integrating
Answer» C. Differentiating

Discussion

11.	What is the total energy of the signal shown in fig c?
A.	6
B.	0
C.	3
D.	1
Answer» B. 0

Discussion

12.	What is the total power of the rectangular pulse shown in fig b?
A.	0
B.	8A2
C.	∞
D.	2A
Answer» B. 8A2

Discussion

13.	What is the fundamental frequency of discrete –time wave shown in fig a?
A.	π/6
B.	π/3
C.	2π/8
D.	π
Answer» C. 2π/8

Discussion

14.	Energy signal has zero average power and power signal has zero energy.
A.	True
B.	False
Answer» C.

Discussion

15.	Noise generated by an amplifier of radio is an example for?
A.	Discrete signal
B.	Deterministic signal
C.	Random signal
D.	Periodic signal
Answer» D. Periodic signal

Discussion

16.	Fundamental frequency x[n] is given by ___________
A.	Omega = 2*pi /N
B.	Omega = 2piN
C.	Omega = 4pi 2N
D.	Omega = pi / N
Answer» B. Omega = 2piN

Discussion

17.	X(T)_OR_X(N)_IS_DEFINED_TO_BE_AN_ENERGY_SIGNAL,_IF_AND_ONLY_IF_THE_TOTAL_ENERGY_CONTENT_OF_THE_SIGNAL_IS_A:?$
A.	Finite quantity
B.	Infinite
C.	Zero
D.	None of the mentioned
Answer» B. Infinite

Discussion

18.	NOISE_GENERATED_BY_AN_AMPLIFIER_OF_RADIO_IS_AN_EXAMPLE_FOR??$
A.	Discrete signal
B.	Deterministic signal
C.	Random signal
D.	Periodic signal
Answer» D. Periodic signal

Discussion

19.	What_is_the_period_of_cos2t+sin3t?$
A.	pi
B.	2*pi
C.	3*pi
D.	4*pi
Answer» C. 3*pi

Discussion

20.	Energy_signal_has_zero_average_power_and_power_signal_has_zero_energy.$
A.	True
B.	False
Answer» C.

Discussion

21.	What is the total energy of rectangular pulse shown in fig b?
A.	8A<sup>2</sup>
B.	4A
C.	2A
D.	4A<sup>2</sup>
Answer» B. 4A

Discussion

22.	Calculate the average power of the discrete-time wave shown in fig a?
A.	1
B.	6
C.	0
D.	-1
Answer» B. 6

Discussion

23.	What_is_the_fundamental_frequency_of_discrete_‚Äö√Ñ√∂‚àö√ë‚àö¬®time_wave_shown_in_fig_a?$
A.	‚âà√¨‚àö√ë/6
B.	‚âà√¨‚àö√ë/3
C.	2‚âà√¨‚àö√ë/8
D.	‚âà√¨‚àö√ë
Answer» B. ‚âà√¨‚àö√ë/3

Discussion

24.	All energy signals will have an average power of?
A.	Infinite
B.	Zero
C.	Positive
D.	Cannot be calculated
Answer» C. Positive

Discussion

25.	Fundamental frequency x[n] is given by __________?
A.	Omega = 2*pi /N
B.	Omega = 2piN
C.	Omega = 4pi 2N
D.	Omega = pi / N
Answer» B. Omega = 2piN

Discussion

26.	Let x₁(t) and x₂(t) be periodic signals with fundamental periods T₁ and T₂ respectively. Then the fundamental period of x(t)=x₁(t)+x₂(t) is:
A.	LCM of T<sub>1</sub> and T<sub>2</sub>
B.	HCF of T<sub>1</sub>and T<sub>2</sub>
C.	Product of T<sub>1</sub> and T<sub>2</sub>
D.	Ratio of T<sub>1</sub> to T<sub>2</sub>
Answer» B. HCF of T<sub>1</sub>and T<sub>2</sub>

Discussion

27.	When x(t ) is said to be non periodic signal?
A.	If the equation x (t) = x (t + T) is satisfied for all values of T
B.	If the equation x (t) = x (t + T) is satisfied for only one value of T
C.	If the equation x (t) = x (t + T) is satisfied for no values of T
D.	If the equation x (t) = x (t + T) is satisfied for only odd values of T
Answer» D. If the equation x (t) = x (t + T) is satisfied for only odd values of T

Discussion

28.	Let x₁(t) and x₂(t) be periodic signals with fundamental periods T1 and T2 respectively. Which of the following must be a rational number for x(t)=x₁(t)+x₂(t) to be periodic?
A.	T<sub>1</sub>+T<sub>2</sub>
B.	T<sub>1</sub>-T<sub>2</sub>
C.	T<sub>1</sub>/T<sub>2</sub>
D.	T<sub>1</sub>*T<sub>2</sub>
Answer» D. T<sub>1</sub>*T<sub>2</sub>

Discussion

29.	Which of the following is true for complex-valued function?
A.	X (-t) = x*(t)
B.	X (-t) = x(t)
C.	X (-t) = ‚Äö√Ñ√∂‚àö√ë‚àö¬® x(t)
D.	X (-t) = x*(-t)
Answer» B. X (-t) = x(t)

Discussion

30.	For a continuous time signal x(t) to be periodic with a period T, then x(t+mT) should be equal to:
A.	x(-t)
B.	x(mT)
C.	x(mt)
D.	x(t)
Answer» E.

Discussion

31.	If x (-t) = -x (t) then the signal is said to be _____________
A.	Even signal
B.	Odd signal
C.	Periodic signal
D.	Non periodic signal
Answer» B. Odd signal

Discussion

32.	Which of the following is the odd component of the signal x(t)=e^(jt)?
A.	cost
B.	j*sint
C.	j*cost
D.	sint
Answer» C. j*cost

Discussion

33.	Even signals are symmetric about the vertical axis.
A.	True
B.	False
Answer» B. False

Discussion

34.	The even part of a signal x(t) is:
A.	x(t)+x(-t)
B.	x(t)-x(-t)
C.	(1/2)*(x(t)+x(-t))
D.	(1/2)*(x(t)-x(-t))
Answer» D. (1/2)*(x(t)-x(-t))

Discussion

35.	Discrete time signal is derived from continuous time signal by _____________ process.
A.	Addition
B.	Multiplying
C.	Sampling
D.	Addition and multiplication
Answer» D. Addition and multiplication

Discussion

36.	The deflection voltage of an oscilloscope is a ‚Äö√Ñ√∂‚àö√ë‚àö‚â§deterministic‚Äö√Ñ√∂‚àö√ë‚àö¬•$
A.
B.	True
Answer» B. True

Discussion

37.	In real valued function and complex valued function, time is _______________
A.	Real
B.	Complex
C.	Imaginary
D.	Not predictable
Answer» B. Complex

Discussion

38.	What is single-valued function?
A.	Single value for all instants of time
B.	Unique value for every instant of time
C.	A single pattern is followed by after ‚Äö√Ñ√∂‚àö√ë‚àö‚â§t‚Äö√Ñ√∂‚àö√ë‚àö¬• intervals
D.	Different pattern of values is followed by after ‚Äö√Ñ√∂‚àö√ë‚àö‚â§t‚Äö√Ñ√∂‚àö√ë‚àö¬• intervals of time
Answer» C. A single pattern is followed by after ‚Äö√Ñ√∂‚àö√ë‚àö‚â§t‚Äö√Ñ√∂‚àö√ë‚àö¬• intervals

Discussion

Explore topic-wise MCQs in Signals Systems.

What is the period of cos2t+sin3t?

x(t) or x(n) is defined to be an energy signal, if and only if the total energy content of the signal is a ___________

All energy signals will have an average power of ___________

Let x1(t) and x2(t) be periodic signals with fundamental periods T1 and T2 respectively. Then the fundamental period of x(t)=x1(t)+x2(t) is?

Let x1(t) and x2(t) be periodic signals with fundamental periods T1 and T2 respectively. Which of the following must be a rational number for x(t)=x1(t)+x2(t) to be periodic?

For a continuous time signal x(t) to be periodic with a period T, then x(t+mT) should be equal to ___________

Which of the following is the odd component of the signal x(t)=e(jt)?

The even part of a signal x(t) is?

The deflection voltage of an oscilloscope is a ‘deterministic’ signal.

Which of the following is done to convert a continuous time signal into discrete time signal?

What is the total energy of the signal shown in fig c?

What is the total power of the rectangular pulse shown in fig b?

What is the fundamental frequency of discrete –time wave shown in fig a?

Energy signal has zero average power and power signal has zero energy.

Noise generated by an amplifier of radio is an example for?

Fundamental frequency x[n] is given by ___________

X(T)_OR_X(N)_IS_DEFINED_TO_BE_AN_ENERGY_SIGNAL,_IF_AND_ONLY_IF_THE_TOTAL_ENERGY_CONTENT_OF_THE_SIGNAL_IS_A:?$

NOISE_GENERATED_BY_AN_AMPLIFIER_OF_RADIO_IS_AN_EXAMPLE_FOR??$

What_is_the_period_of_cos2t+sin3t?$

Energy_signal_has_zero_average_power_and_power_signal_has_zero_energy.$

What is the total energy of rectangular pulse shown in fig b?

Calculate the average power of the discrete-time wave shown in fig a?

What_is_the_fundamental_frequency_of_discrete_‚Äö√Ñ√∂‚àö√ë‚àö¬®time_wave_shown_in_fig_a?$

All energy signals will have an average power of?

Fundamental frequency x[n] is given by __________?

Let x1(t) and x2(t) be periodic signals with fundamental periods T1 and T2 respectively. Then the fundamental period of x(t)=x1(t)+x2(t) is:

When x(t ) is said to be non periodic signal?

Let x1(t) and x2(t) be periodic signals with fundamental periods T1 and T2 respectively. Which of the following must be a rational number for x(t)=x1(t)+x2(t) to be periodic?

Which of the following is true for complex-valued function?

For a continuous time signal x(t) to be periodic with a period T, then x(t+mT) should be equal to:

If x (-t) = -x (t) then the signal is said to be _____________

Which of the following is the odd component of the signal x(t)=e(jt)?

Even signals are symmetric about the vertical axis.

The even part of a signal x(t) is:

Discrete time signal is derived from continuous time signal by _____________ process.

The deflection voltage of an oscilloscope is a ‚Äö√Ñ√∂‚àö√ë‚àö‚â§deterministic‚Äö√Ñ√∂‚àö√ë‚àö¬•$

In real valued function and complex valued function, time is _______________

What is single-valued function?

Let x₁(t) and x₂(t) be periodic signals with fundamental periods T₁ and T₂ respectively. Then the fundamental period of x(t)=x₁(t)+x₂(t) is:

Let x₁(t) and x₂(t) be periodic signals with fundamental periods T1 and T2 respectively. Which of the following must be a rational number for x(t)=x₁(t)+x₂(t) to be periodic?

Which of the following is the odd component of the signal x(t)=e^(jt)?