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Worksheets

Volume 3

Total questions: 15

Worksheet time: 15mins

Name
Class
Date
1.

Frequency and period are ______.

a)

proportional to each other

b)

not related

c)

similar

d)

inverse of each other

2.

________ is the rate of change with respect to time.

a)

Amplitude

b)

Time

c)

Frequency

d)

Phase

3.

_______ describes the position of the waveform relative to time, t = 0.

a)

Amplitude

b)

Time

c)

Frequency

d)

Phase

4.

A simple sine wave can be represented by one single spike in the _____ domain.

a)

amplitude

b)

frequency

c)

time

d)

phase

5.

As frequency increases, the period ________.

a)

remains the same

b)

decreases

c)

increases

d)

none are correct

6.

________ is a type of transmission impairment in which the signal loses strength due to the resistance of the transmission medium.

a)

Attenuation

b)

Distortion

c)

Noise

d)

Decibel

7.

________ is a type of transmission impairment in which the signal loses strength due to the different propagation speeds of each frequency that makes up the signal.

a)

Attenuation

b)

Distortion

c)

Noise

d)

Decibel

8.

________ is a type of transmission impairment in which an outside source such as crosstalk corrupts a signal.

a)

Attenuation

b)

Distortion

c)

Noise

d)

Decibel

9.

For a ______ channel, the Nyquist bit rate formula defines the theoretical maximum bit rate.

a)

noisy

b)

noiseless

c)

bandpass

d)

low-pass

10.

For a noisy channel, we need to use the _________ capacity to find the maximum bit rate.

a)

Nyquist

b)

Shannon

c)

Sharon

d)

Shepherd

11.

What is the phase shift for a sine wave with the maximum amplitude at time, t = 0 ?

a)

0 degrees 

b)

90 degrees 

c)

180 degrees

d)

270 degrees

12.

What is the phase shift for a sine wave with the maximum amplitude after quarter cycle?

a)

0 degrees 

b)

90 degrees 

c)

180 degrees

d)

270 degrees

13.

What is the bit rate for a signal in which 1 bit lasts for 2 ms duration?

a)

5 bps 

b)

500 bps 

c)

500 Kbps

d)

None is correct

14.

What is the bit rate for the signal in the diagram?

a)

800 Mbps

b)

100 Mbps

c)

62.5 Mbps

d)

500 Mbps

15.

A signal passed through three cascaded amplifiers, each with a 2 dB gain. How much is the signal being amplified?

a)

2 times

b)

3 times

c)

4 times

d)

5 times