ATT TEST 10 NEWEST TEST 2025 | ALL QUESTIONS AND CORRECT
ANSWERS | GRADED A+ | LATEST TEST | VERIFIED ANSWERS
Two objects at the same range must be separated by at least ____ beam width to be separately
distinguishable by the RADAR system. - (CORRECT ANSWER)One.
What is the phase shift of a stationary object? - (CORRECT ANSWER)Stationary objects have no Doppler
Effect.
The beam produced by the orange-peel parabolic antenna is _____ in the horizontal plane and _____ in
the vertical. - (CORRECT ANSWER)Narrow, Wide.
What two types of energy transmissions do RADAR systems employ? - (CORRECT ANSWER)Pulsed,
Continuous Wave (CW)
What is the function of the charging choke in the line-in type modulator? - (CORRECT ANSWER)Causes
Pin to charge to twice the power supply potential.
How does FTC affect receiver gain, if at all? - (CORRECT ANSWER)Has no effect.
Which radar receiver component converts the IF pulses to video pulses? - (CORRECT ANSWER)Video
Detector.
What are the types of losses that are associated with transmission lines? - (CORRECT ANSWER)Resistive,
capacitive, inductive.
What type of loss is due to the expanding and collapsing magnetic fields inducing a voltage and current
in surfaces near the transmission lines? - (CORRECT ANSWER)Induction Loss.
What type of transmission line uses the outer conductor to shield the center conductor? - (CORRECT
ANSWER)Flexible Coaxial Cable.
1
,Which transmission line allows the least velocity (60% of the speed of light)? - (CORRECT
ANSWER)Twisted Pair.
A waveguide is defined as a system of material boundries, capable of guiding ______. - (CORRECT
ANSWER)Electromagnetic Energy.
In a waveguide, as the frequency increases the bus bar _____ in size. - (CORRECT ANSWER)increases
What is the physical handling and installation of waveguides called? - (CORRECT ANSWER)Plumbing.
This resistive load absorbs all energy from the transmitter so that it doesn't leave the antenna. -
(CORRECT ANSWER)Dummy Load.
What are the operational pressures of high and low power dry air systems? - (CORRECT ANSWER)25 to
35 PSI high, and 1 to 8 PSI low.
Ideally the dew point in a waveguide should be kept below _____ degrees fahrenheit. - (CORRECT
ANSWER)-40
What is the least efficient type of equipment cooling? - (CORRECT ANSWER)Convection.
What is the purpose of the duplex strainer in liquid cooling systems? - (CORRECT ANSWER)Removes
debris from the seawater.
What is not a component of a typical communications system? - (CORRECT ANSWER)Satellite Uplink
Any information or data deliberately being transmitted and/or received. - (CORRECT
ANSWER)Information.
2
, The superimposition of low frequency information on a higher frequency carrier signal. - (CORRECT
ANSWER)Modulation.
Demodulation occurs when _______. - (CORRECT ANSWER)"Intelligence" is extracted from the carrier.
Unwanted disruptions or variations that contaminate the RF carrier are ________. - (CORRECT
ANSWER)Noise
The movement of electromagnetic energy through a medium. - (CORRECT ANSWER)Wave Propogation
The _____ the frequency of a radiowave, the more rapidly the wave is _______ by a given degree of
ionization. - (CORRECT ANSWER)Lower, Refracted
True/False: As the wave length decreases and the frequency of a radio wave increases, the diffraction
ability increases. - (CORRECT ANSWER)False.
A PLL system consists of _______. - (CORRECT ANSWER)Phase detector, frequency counter/divider, VCO,
loop filter.
The local oscillator in the AM receiver is always tuned to _______. - (CORRECT ANSWER)455kHz above
RF.
The USB and LSB are always ________ out of phase. - (CORRECT ANSWER)180 degrees.
The purpose of a mixer is to ______. - (CORRECT ANSWER)Mix tuned RF with the VCO reference
frequency.
AGC DC voltage should rise and fall in accordance with the _________. - (CORRECT ANSWER)Strength of
the incoming signal.
3
ANSWERS | GRADED A+ | LATEST TEST | VERIFIED ANSWERS
Two objects at the same range must be separated by at least ____ beam width to be separately
distinguishable by the RADAR system. - (CORRECT ANSWER)One.
What is the phase shift of a stationary object? - (CORRECT ANSWER)Stationary objects have no Doppler
Effect.
The beam produced by the orange-peel parabolic antenna is _____ in the horizontal plane and _____ in
the vertical. - (CORRECT ANSWER)Narrow, Wide.
What two types of energy transmissions do RADAR systems employ? - (CORRECT ANSWER)Pulsed,
Continuous Wave (CW)
What is the function of the charging choke in the line-in type modulator? - (CORRECT ANSWER)Causes
Pin to charge to twice the power supply potential.
How does FTC affect receiver gain, if at all? - (CORRECT ANSWER)Has no effect.
Which radar receiver component converts the IF pulses to video pulses? - (CORRECT ANSWER)Video
Detector.
What are the types of losses that are associated with transmission lines? - (CORRECT ANSWER)Resistive,
capacitive, inductive.
What type of loss is due to the expanding and collapsing magnetic fields inducing a voltage and current
in surfaces near the transmission lines? - (CORRECT ANSWER)Induction Loss.
What type of transmission line uses the outer conductor to shield the center conductor? - (CORRECT
ANSWER)Flexible Coaxial Cable.
1
,Which transmission line allows the least velocity (60% of the speed of light)? - (CORRECT
ANSWER)Twisted Pair.
A waveguide is defined as a system of material boundries, capable of guiding ______. - (CORRECT
ANSWER)Electromagnetic Energy.
In a waveguide, as the frequency increases the bus bar _____ in size. - (CORRECT ANSWER)increases
What is the physical handling and installation of waveguides called? - (CORRECT ANSWER)Plumbing.
This resistive load absorbs all energy from the transmitter so that it doesn't leave the antenna. -
(CORRECT ANSWER)Dummy Load.
What are the operational pressures of high and low power dry air systems? - (CORRECT ANSWER)25 to
35 PSI high, and 1 to 8 PSI low.
Ideally the dew point in a waveguide should be kept below _____ degrees fahrenheit. - (CORRECT
ANSWER)-40
What is the least efficient type of equipment cooling? - (CORRECT ANSWER)Convection.
What is the purpose of the duplex strainer in liquid cooling systems? - (CORRECT ANSWER)Removes
debris from the seawater.
What is not a component of a typical communications system? - (CORRECT ANSWER)Satellite Uplink
Any information or data deliberately being transmitted and/or received. - (CORRECT
ANSWER)Information.
2
, The superimposition of low frequency information on a higher frequency carrier signal. - (CORRECT
ANSWER)Modulation.
Demodulation occurs when _______. - (CORRECT ANSWER)"Intelligence" is extracted from the carrier.
Unwanted disruptions or variations that contaminate the RF carrier are ________. - (CORRECT
ANSWER)Noise
The movement of electromagnetic energy through a medium. - (CORRECT ANSWER)Wave Propogation
The _____ the frequency of a radiowave, the more rapidly the wave is _______ by a given degree of
ionization. - (CORRECT ANSWER)Lower, Refracted
True/False: As the wave length decreases and the frequency of a radio wave increases, the diffraction
ability increases. - (CORRECT ANSWER)False.
A PLL system consists of _______. - (CORRECT ANSWER)Phase detector, frequency counter/divider, VCO,
loop filter.
The local oscillator in the AM receiver is always tuned to _______. - (CORRECT ANSWER)455kHz above
RF.
The USB and LSB are always ________ out of phase. - (CORRECT ANSWER)180 degrees.
The purpose of a mixer is to ______. - (CORRECT ANSWER)Mix tuned RF with the VCO reference
frequency.
AGC DC voltage should rise and fall in accordance with the _________. - (CORRECT ANSWER)Strength of
the incoming signal.
3
