ATT Test 10 Radars Questions With Correct
Answers 100% Verified
What is an echo - CORRECT ANSWER -Rf energy reflected from an object
What four types of energy does an echo provide? - CORRECT ANSWER -bearing, range,
elevation, velocity
What is length of line (LOS) known as? - CORRECT ANSWER -range
What is the most commonly used reference level in the decibel system for radar? - CORRECT
ANSWER -1mW
To be separately distinguishable by the radar system, two objects that must be separated by
how many beam widths? - CORRECT ANSWER -atleast one beam width
What is the greatest limiting factor of a receivers maximum detectable range? - CORRECT
ANSWER -noise
What is the most commonly used type of receiver In a radar system? - CORRECT ANSWER -
superheterodyne
what radar receiver component converts IF pulses to video pulses? - CORRECT ANSWER -video
detector
What effect does FTC have on receiver gain? - CORRECT ANSWER -no effect
What is characteristic impedance? - CORRECT ANSWER -inductance and capacitance of the line
, What is skin effect loss? - CORRECT ANSWER -high frequency currents flowing near the outer
surface of the conductor
What is radiation loss? - CORRECT ANSWER -when a portion of electric energy is lost to the
atmosphere, not a nearby object
What is dielectric loss? - CORRECT ANSWER -due to the capacitance formed between
transmission lines
What causes copper loss? - CORRECT ANSWER -displaced heat over a line of a considerable
length
What is the definition of a waveguide? - CORRECT ANSWER -a system of a material boundaries
capable of guiding electromagnetic energy
How is electromagnetic energy produced? - CORRECT ANSWER -by current flowing through a
conductor
What is the physical handling and installation of a waveguide called? - CORRECT ANSWER -
plumbing
What does the "b" dimension of a waveguide determine? - CORRECT ANSWER -power handling
capability of a waveguide
What is reciprocity? - CORRECT ANSWER -the ability of an antenna to act as a transmitter or
receiver
How is an antennas gain measured? - CORRECT ANSWER -in relation to a reference antenna
Answers 100% Verified
What is an echo - CORRECT ANSWER -Rf energy reflected from an object
What four types of energy does an echo provide? - CORRECT ANSWER -bearing, range,
elevation, velocity
What is length of line (LOS) known as? - CORRECT ANSWER -range
What is the most commonly used reference level in the decibel system for radar? - CORRECT
ANSWER -1mW
To be separately distinguishable by the radar system, two objects that must be separated by
how many beam widths? - CORRECT ANSWER -atleast one beam width
What is the greatest limiting factor of a receivers maximum detectable range? - CORRECT
ANSWER -noise
What is the most commonly used type of receiver In a radar system? - CORRECT ANSWER -
superheterodyne
what radar receiver component converts IF pulses to video pulses? - CORRECT ANSWER -video
detector
What effect does FTC have on receiver gain? - CORRECT ANSWER -no effect
What is characteristic impedance? - CORRECT ANSWER -inductance and capacitance of the line
, What is skin effect loss? - CORRECT ANSWER -high frequency currents flowing near the outer
surface of the conductor
What is radiation loss? - CORRECT ANSWER -when a portion of electric energy is lost to the
atmosphere, not a nearby object
What is dielectric loss? - CORRECT ANSWER -due to the capacitance formed between
transmission lines
What causes copper loss? - CORRECT ANSWER -displaced heat over a line of a considerable
length
What is the definition of a waveguide? - CORRECT ANSWER -a system of a material boundaries
capable of guiding electromagnetic energy
How is electromagnetic energy produced? - CORRECT ANSWER -by current flowing through a
conductor
What is the physical handling and installation of a waveguide called? - CORRECT ANSWER -
plumbing
What does the "b" dimension of a waveguide determine? - CORRECT ANSWER -power handling
capability of a waveguide
What is reciprocity? - CORRECT ANSWER -the ability of an antenna to act as a transmitter or
receiver
How is an antennas gain measured? - CORRECT ANSWER -in relation to a reference antenna
