Avionics Antenna Fundamentals Online Exam Quiz
Avionics Antenna Fundamentals GK Quiz. Question and Answers related to Avionics Antenna Fundamentals. MCQ (Multiple Choice Questions with answers about Avionics Antenna Fundamentals
The radiation from an open line can be increased by bending to which of the following angle?
Options
A : 0°
B : 180°
C : 90°
D : 53.76°
At what distance from the antenna does the far field start?
Options
A : 2 wavelengths
B : 5 wavelengths
C : 10 wavelengths
D : 25 wavelengths
An Em wave is said to be vertically polarized when the angle between the electrical field and earth is _______
Options
A : 50°
B : 20°
C : 90°
D : 180°
Which of the following is the most necessary for an electric field to exist?
Options
A : Current
B : Potential difference
C : Dielectric material
D : Metal conductor
What happens to the electric field between two conductors when the permeability of the material between the plates is increased?
Options
A : Field strength increases
B : Field radius decreases
C : Field strength decreases
D : Nothing happens
In a current carrying conductor, what happens to the magnetic field produced if the supplied voltage is increased and current is maintained constant?
Options
A : Field strength increases
B : Field radius increases
C : Filed strength decreases
D : Does not change
The Far field is also known as ______________
Options
A : Fresnel zone
B : Fraunhofer zone
C : Maxwell zone
D : Marconi zone
What happens when a vertical or horizontal polarized antenna receives a circular polarized wave?
Options
A : Gain increases
B : Signal strength increases
C : Signal strength reduces
D : Cannot receive circular polarized waves
What is the ratio of the electric field strength of a radiated wave to the magnetic field strength called?
Options
A : Impedance of space
B : Dielectric constant
C : Permittivity
D : Permeability
Which of the following devices assist in using the same antenna for transmission and receiving?
Options
A : Monoplexer
B : Multiplexer
C : Duplexer
D : Switch
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