Free Bachelor of Electrical Engineering Signals & Systems Questions and Answers

Question 1

The majority of the signals in nature are .

Accepted Answer

Analog and Continuous-time

Answer

Digital and Analog

Answer

Continuous-time and digital

Answer

Continuous-time and discrete-time

Question 2

Which of the following traits does not apply to deterministic signals?

Accepted Answer

Exhibits uncertainty

Answer

Can be represented by a mathematical equation

Answer

Exhibits no uncertainty

Answer

Instantaneous value can be accurately predicted

Question 3

When the ratio of the time periods of two periodic signals is ____________, the sum of the signals is a periodic signal.

Accepted Answer

A rational number

Answer

An integer

Answer

An irrational number

Answer

A complex number

Question 4

Among the following signals, which one is monotonous in nature?

Accepted Answer

1-exp(-t)

Answer

cos(t)

Answer

1-exp(sin(t))

Answer

log(tan(t))

Question 5

Is the integral of the function from -infinity to +infinity for a bounded function defined and finite?

Accepted Answer

Not always

Answer

Yes

Answer

Never

Answer

None of the mentioned

Question 6

Find the range between 1.25 and 1.75 where the signal x(t) = 1/(t2 - 3t + 2) reaches its highest value:

Accepted Answer

1.5

Answer

1.55

Answer

1.45

Answer

1.4

Question 7

What are the signals 1-exp(-t) and 1-k*exp(-k*tsteady )'s state values?

Accepted Answer

1, k

Answer

1, 1 2001

Answer

k, k

Answer

1, 1/k

Question 8

What kind of system is exemplified by amplifiers, motors, filters, etc.?

Accepted Answer

Continuous time systems

Answer

Discrete time systems

Answer

Unstable systems

Answer

Distributed parameter systems

Question 9

Which system from the list below is described by partial differential functions?

Accepted Answer

Distributed parameter systems and Dynamic systems

Answer

Causal systems and linear systems

Answer

Causal Systems and Dynamic systems

Answer

Distributed parameter systems and linear systems

Question 10

Which system from the list below is causal?

Accepted Answer

y(t)=x(t-1)+x(t-2)

Answer

y(n)=x(2n²)

Answer

y(t)=x(t)+x(t-3)+x(t²)

Answer

y(n)=x(n+2)