# Pre Assessment Test - Basics Of Signals And Systems

11 Questions | Total Attempts: 98  Settings  • 1.
All the real time natural signals are of which type?
• A.

Discrete

• B.

Continous

• C.

Digital

• 2.
Is analog signals are more flexible for easy transmission?
• A.

True

• B.

False

• 3.
Select the conditions for the existence of Initial value theorem.
• A.

If time t approaches to infinity then the function f(t) should exists.

• B.

If time t approaches to zero then the function f(t) should vanish.

• C.

If time t approaches to zero then the function f(t) should exists.

• D.

If time t approaches to infinity then the function f(t) should vanish.

• 4.
Expand the below binomial series->(1 + x)^n
• A.

1 + nx +[n(n − 1)/2!] x^2 +[n(n − 1)(n − 2)/3!] x^3 + . . .

• B.

1 + nx +2[n(n − 1)/2!] x^2 +3[n(n − 1)(n − 2)/3!] x^3 + . . .

• C.

1 - nx +[n(n − 1)/2!] x^2 +[n(n − 1)(n − 2)/3!] x^3 + . . .

• D.

1 - nx +[n(n − 1)/2!] x^2 -[n(n − 1)(n − 2)/3!] x^3 - . . .

• 5.
In the following conditions, for which Final value doesn’t exist.
• A.

If the function sF(s)has the infinite pole

• B.

If the function sF(s)has pole on origin

• C.

If the function sF(s)has no zeros

• D.

If the function sF(s)has pole at unity

• 6.
Expand the series ->(1 + x)^−1
• A.

1 + x + x^2 + x^3 + x^4 + . . .

• B.

1 − x + 2x^2 − 3x^3 + 4x^4 − . . .

• C.

1 − x + x^2 − x^3 + x^4 − . . .

• 7.
High Pass Filter allows the
• A.

Frequency lesser than infinity

• B.

Frequency less than cut-off frequency

• C.

Frequency higher than infinity

• D.

Frequency higher than cut-off frequency

• 8.
Transfer function of the system is defined as the
• A.

Ratio of laplace transform of input to output response

• B.

Ratio of laplace transform of input to output response with zero initial condition

• C.

Ratio of laplace transform of output to input response with zero initial condition

• D.

Ratio of laplace transform of output to input response

• 9.
Low pass filter eliminates frequencies ______________ than the cut-off frequency
• A.

Higher

• B.

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