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Signals-and-systems Questions Set 59:

Quiz Mode

Is the signal x(n) = u(n + 4) – u(n – 4) causal?

YES

Solution:

What is the Laplace transform of t³e^-3t?

6/(s+3)^3

6/(s+3)^4

3/(s+3)^4

3/(s+3)^3

Solution:

The shape of the function f(t) = r(t) - r(t-1) - r(t-2) + r(t+3) is:

Circular

Trapezium

Square

Rectangle

Solution:

u(n+2)u(-n+3) is equal to

u(-n+3)

u(n+2)

signal of amplitude 1 for n= -1 to 3

signal of amplitude 1 for n= -2 to 3

Solution:

An energy signal auto-correlation function has

conjugate symmetry

even symmetry

no symmetry

both conjugate and even symmetry

Solution:

The system y(n) = x(n) - x(n-1) is

Time invariant system

Time variant system

Neither time variant nor time invariant system

None

Solution:

Impulse response is the output of ______ system due to impulse input applied at time=0.

Linear

Time varying

Time invariant

Linear and time invariant

Solution:

When a signal is defined continuously for any value of an independent variable, is called ________.

digital signal

discrete signal

analog signal

unit step signal

Solution:

If x(n) tends to infinity or constant,as "n" tends to infinity , then y(n)=n x(n) will be infinite as "n" tends to infinity. So the system is________

stable

unstable

Solution:

The continuous time system described by the equation y(t) = x(t²) comes under which category?

causal, linear and time varying

causal, non-linear and time varying

non causal, non-linear and time-invariant

non causal, linear and time-variant

Signals-and-systems Questions Set 59:

Is the signal x(n) = u(n + 4) – u(n – 4) causal?

Solution:

What is the Laplace transform of t³e^-3t?

Solution:

The shape of the function f(t) = r(t) - r(t-1) - r(t-2) + r(t+3) is:

Solution:

u(n+2)u(-n+3) is equal to

Solution:

An energy signal auto-correlation function has

Solution:

The system y(n) = x(n) - x(n-1) is

Solution:

Impulse response is the output of ______ system due to impulse input applied at time=0.

Solution:

When a signal is defined continuously for any value of an independent variable, is called ________.

Solution:

If x(n) tends to infinity or constant,as "n" tends to infinity , then y(n)=n x(n) will be infinite as "n" tends to infinity. So the system is________

Solution:

The continuous time system described by the equation y(t) = x(t²) comes under which category?

Solution:

Related Question Sets:

Related Topics:

Signals-and-systems Questions Set 59:

Is the signal x(n) = u(n + 4) – u(n – 4) causal?

Solution:

What is the Laplace transform of t3e-3t?

Solution:

The shape of the function f(t) = r(t) - r(t-1) - r(t-2) + r(t+3) is:

Solution:

u(n+2)u(-n+3) is equal to

Solution:

An energy signal auto-correlation function has

Solution:

The system y(n) = x(n) - x(n-1) is

Solution:

Impulse response is the output of ______ system due to impulse input applied at time=0.

Solution:

When a signal is defined continuously for any value of an independent variable, is called ________.

Solution:

If x(n) tends to infinity or constant,as "n" tends to infinity , then y(n)=n x(n) will be infinite as "n" tends to infinity. So the system is________

Solution:

The continuous time system described by the equation y(t) = x(t2) comes under which category?

Solution:

Related Question Sets:

Related Topics:

What is the Laplace transform of t³e^-3t?

The continuous time system described by the equation y(t) = x(t²) comes under which category?