Laplace Transform MCQ Questions with Answers

Laplace transform is the method of transforming a function from time domain into s domain. Laplace transform is a very handy tool in control systems. It is a very useful tool for solving differential equations.

Laplace transformer can be best defined as

Laplace transformer can be best defined as:

1. Method of transforming the function from the time domain to s domain
2. Method of transforming the function from s domain to time domain
3. Method of transforming analog to digital function
4. Method of transforming digital to analog function

Correct answer: 1. Method of transforming the function from the time domain to s domain

Laplace transformer of a function f(t) is expressed by the formula

Laplace Transform MCQ#1: Laplace transform of a function f(t) is expressed by formula:

Correct answer: 3. f(t)e^-st dt is the correct expression for representing Laplace transform of function f(t)

Laplace Transform of Unit Impulse function is

Laplace Transform of Unit Impulse function is:

1. 1
2. s
3. 1/s
4. 2s

Laplace Transform of Unit Step Function is

Laplace Transform of Unit Step Function is:

1. 1
2. s
3. 1/s
4. 2s

Laplace Transform of function e-at is

Laplace Transform of function e-at is:

1. 1/s
2. -1/s
3. 1/(s+a)
4. 1/(s-a)

Laplace Transform of exponential function e-at is 1/s+a

Laplace Transform of function eat is

Laplace Transform of function e-at is:

1. 1/s
2. -1/s
3. 1/(s+a)
4. 1/(s-a)

Laplace Transform of exponential function eat is 1/s-a

Laplace Transform of Function sin ωt is

Laplace Transform of Function sin ωt is:

1. 1/( s2 + ω2 )
2. 1/( s2 – ω2 )
3. ω/( s2 + ω2 )
4. ω/( s2 – ω2 )

Correct answer: 3. ω/( s2 + ω2 )

Laplace Transform of Sine Function sin ωt is ω/( s2 + ω2 )

Laplace Transform of Function cos ωt is

Laplace Transform of cosine wave Function cos ωt is:

1. s/( s2 + ω2 )
2. s/( s2 – ω2 )
3. ω/( s2 + ω2 )
4. ω/( s2 – ω2 )

Correct answer: 1. s/( s2 + ω2 )

Laplace Transform of cos Function cos ωt is s/( s2 + ω2 )

Laplace transform is an integral transform that converts a function of a real variable to a function of a complex variable

Laplace transform is an integral transform that converts a function of a real variable to a function of a complex variable:

1. True
2. False