NHTSA radar/LiDAR – Questions With Expert
Solutions
True ir false Speed measuring devices improve speed enforcement
efforts by providing an accurate measurement of a driver's speed .
Correct Answer - True
True or False Higher speeds make it more likely that a crash will
occur because higher speeds overwhelm a driver's capability by
limiting his or her reaction time . Correct Answer - True
True or false The two types of speed laws are the basic speed law
and the absolute speed law . Correct Answer - True
True or false The basic speed law states : It is lawful to drive a
vehicle on public roadways at a speed greater than is reasonable
and prudent under existing conditions . Correct Answer - False
True or False. An absolute speed law states : it is lawful to drive a
vehicle on public roadways at a speed greater than the specified
limit . Correct Answer - False
Any speed offense has four elements . It is essential to establish
every element in order to obtain a conviction . The four elements are
: Correct Answer - a . Driver b . vehicle c . location d . Speed
The two key factors to consider when choosing a site to conduct
speed enforcement activities are : Correct Answer - Need and
safety
True False The Doppler Principle states : " When there is relative
motion between two objects , one of which is transmitting wave
, energy , the frequency of the signal as received by the other object
changes due to that relative motion . Correct Answer - True
True False If there is relative motion ( toward or away ) between a
RADAR device and an object , the frequency of the reflected signal
will be the same as the frequency of the transmitted signal .
Correct Answer - False
True False The word RADAR is an acronym . It is an abbreviation of
the phrase radio detection and ranging . Correct Answer - True
True False The velocity of all radio signals is a constant , it is the
speed of light , which is 186,282.4 miles per second , or 30 billion
centimeters per second . Correct Answer - True
Name the three FCC assigned RADAR frequency bands . Correct
Answer - X-Band, K-Band, and Ka-Band
True False RADAR wave energy is transmitted by the antenna in a
cone shaped pattern that resembles a flashlight's beam . Correct
Answer - True
True False The range or maximum distance , at which a reflected
signal can be interpreted by RADAR device depends on the
sensitivity of the antenna receiver . Correct Answer - True
A stationary RADAR signal that strikes a motionless target will
return a reflected signal at a frequency that is Correct Answer -
the same
True False When a stationary RADAR beam is transmitted down a
roadway on which vehicles are either approaching or moving away
the RADAR device can only determine how fast the target and the
Solutions
True ir false Speed measuring devices improve speed enforcement
efforts by providing an accurate measurement of a driver's speed .
Correct Answer - True
True or False Higher speeds make it more likely that a crash will
occur because higher speeds overwhelm a driver's capability by
limiting his or her reaction time . Correct Answer - True
True or false The two types of speed laws are the basic speed law
and the absolute speed law . Correct Answer - True
True or false The basic speed law states : It is lawful to drive a
vehicle on public roadways at a speed greater than is reasonable
and prudent under existing conditions . Correct Answer - False
True or False. An absolute speed law states : it is lawful to drive a
vehicle on public roadways at a speed greater than the specified
limit . Correct Answer - False
Any speed offense has four elements . It is essential to establish
every element in order to obtain a conviction . The four elements are
: Correct Answer - a . Driver b . vehicle c . location d . Speed
The two key factors to consider when choosing a site to conduct
speed enforcement activities are : Correct Answer - Need and
safety
True False The Doppler Principle states : " When there is relative
motion between two objects , one of which is transmitting wave
, energy , the frequency of the signal as received by the other object
changes due to that relative motion . Correct Answer - True
True False If there is relative motion ( toward or away ) between a
RADAR device and an object , the frequency of the reflected signal
will be the same as the frequency of the transmitted signal .
Correct Answer - False
True False The word RADAR is an acronym . It is an abbreviation of
the phrase radio detection and ranging . Correct Answer - True
True False The velocity of all radio signals is a constant , it is the
speed of light , which is 186,282.4 miles per second , or 30 billion
centimeters per second . Correct Answer - True
Name the three FCC assigned RADAR frequency bands . Correct
Answer - X-Band, K-Band, and Ka-Band
True False RADAR wave energy is transmitted by the antenna in a
cone shaped pattern that resembles a flashlight's beam . Correct
Answer - True
True False The range or maximum distance , at which a reflected
signal can be interpreted by RADAR device depends on the
sensitivity of the antenna receiver . Correct Answer - True
A stationary RADAR signal that strikes a motionless target will
return a reflected signal at a frequency that is Correct Answer -
the same
True False When a stationary RADAR beam is transmitted down a
roadway on which vehicles are either approaching or moving away
the RADAR device can only determine how fast the target and the
