HTML
   HTML5
   CSS
   CSS3
   JavaScript
   jQuery
   AngularJS
   Articles
   Tech Articles
   Blog
Google News
logo
Aeronautical & Aerospace Engineering : Avionics - Quiz(MCQ)
SHF Em waves are used in?
A)
Underwater communication
B)
Satellite communication
C)
Aircraft to ATC communication
D)
Ground to ground communication

Correct Answer :   Satellite communication

Explanation : SHFs or Super High Frequency EM waves are those which lie between the frequency range of 3 to 30GHz range. These microwaves frequencies are widely used in satellite communication and radar.

Recently Updated in Avionics Questions
The maximum peaks of an electromagnetic wave are separated by a distance of 8 in. What is the frequency?
A)
256.4Khz
B)
256.7Mhz
C)
1477.8Khz
D)
1477.8Mhz

Correct Answer : Option (D) :   1477.8Mhz

Explanation : Wavelength =8 in.= 0.203 m
Frequency = 300/0.203 = 1477.8Mhz.

SHF Em waves are used in?
A)
Underwater communication
B)
Satellite communication
C)
Aircraft to ATC communication
D)
Ground to ground communication

Correct Answer : Option (B) :   Satellite communication

Explanation : SHFs or Super High Frequency EM waves are those which lie between the frequency range of 3 to 30GHz range. These microwaves frequencies are widely used in satellite communication and radar.

Which one of the following is not a source of infrared radiation?
A)
Sun
B)
Books
C)
Light bulbs
D)
Human bodies

Correct Answer : Option (B) :   Books

Explanation : Infrared radiation is generally associated with heat. Infrared is produced by light bulbs, human bodies, and basically any physical equipment that generates heat.

Advertisement