5-29.
Which of the following is a list of
the primary types (sources) of
electromagnetic interference?
1.
Radio–frequency and natural
only
2.
Radio-frequency, natural, and
man-made
3.
Natural,
inherent, and man-made
4.
Inherent, motor, and man-made
5–30.
What type (source) of EMI includes
noise within a piece of electronic
equipment, caused by thermal
agitation of electrons following
through circuit resistance?
1.
Natural interference
2.
Inherent interference
3.
Radio–frequency interference
4.
Man-made EMI
5-31.
What type (source) of EMI can be
severe, degrading the operation of
shipboard or shore-based data
processing equipment?
1.
Natural interference
2.
Inherent interference
3.
Radio-frequency interference
4.
Man-made EMI
5–32.
What type of EMI is caused by
events such as snow storms,
electrical storms, rain, and solar
radiation?
1.
Natural
2.
Inherent
3.
Radio–frequency
4.
Man–made
5-33.
What type of EMI is normally
noticed as background noise in a
radio receiver tuned to a frequency
between stations?
1.
Natural
2.
Inherent
3.
Radio-frequency
5-34.
5-35.
5-36.
5–37.
5-38.
What type of EMI is commonly called
static or atmospheric noise?
1.
Natural
2.
Inherent
3.
Radio–frequency
4.
Man-made
What type of EMI is produced by a
number of different classes of
electrical and electronic
equipment, such as transmitters,
welders, and electrical
controllers?
1.
Natural
2.
Inherent
3.
Radio–frequency
4.
Man–made
What type of interference can cause
problems with rf communications and
data links, but does not cause many
problems with modern digital data
equipment?
1.
Natural
2.
Inherent
3.
Man-made
What are the two types of
frequency spectrum interference?
1.
Wideband and narrowband
2.
Broadband and shortband
3.
Broadband and narrowband
4.
Highband and lowband
What type of spectrum interference
consists of a single frequency or a
low range of interference
frequencies, and has a minor effect
on communications or electronic
equipment?
1.
Broadband
2.
Narrowband
3.
Wideband
4.
Shorthand
4.
Man–made
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