wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

ECE 102 Quiz on Noise

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

The noise figure of a totally noiseless device is

a)

unity

b)

infinity

c)

zero

d)

100

2.

Indicate the noise whose source is in a category different from that of the other three.

a)

Solar

b)

Cosmic

c)

Atmospheric

d)

Galactic

3.

The following characteristics of noise except

a)

Unwanted energy

b)

Predictable in character

c)

Present in the channel

d)

Due to any cause

4.

When dealing with random noise calculations it must be remembered that

a)

all calculations are based on peak to peak values

b)

calculations are based on peak values

c)

calculations are based on average values

d)

calculations are based on RMS values

5.

Which of the following is the most reliable measurement for comparing amplifier noise characteristics?

a)

signal-to-noise ratio

b)

noise factor/figure

c)

shot noise         

d)

thermal noise agitation

6.

So called "1/f" noise is also called:

a)

random noise     

b)

pink noise

c)

white noise

d)

partition noise

7.

The formula used to measure the total noise figure due to amplifiers in cascade is called ___

a)

Johnson’s Formula

b)

Shannon’s Formula

c)

Hartley’s Formula

d)

Friis’ Formula

8.

Noise uniformly distributed over the voice frequency band is called ____ noise.

a)

impulse

b)

quantizing

c)

intermodulation

d)

white

9.

The rate at which information can be carried through a communication channel depends on

a)

carrier frequency

b)

bandwidth

c)

transmission loss

d)

transmitted power

10.

The correct symbol for decibel is

a)

DB

b)

dB

c)

Db

d)

db