NC RADAR/LIDAR RECERT Exam
Questions With 100% Accurate Solutions
| Sure To Pass | Latest Update 2025/2026 |
Already Graded A
1. What is the minimum passing score required in the
Commission-administered written examination for
certification? - ANSWER ✔ A minimum score of
seventy-five (75) percent is required to pass the
Commission-administered written examination.
2. When is it permissible for the trainee to use the LIDAR
instrument? - ANSWER ✔ The trainee is only allowed
to use the LIDAR instrument once the certificate for the
commission is in hand
3. What requirement must a LIDAR speed-measuring
device meet to be approved for use in North Carolina? -
ANSWER ✔ The LIDAR speed-measuring device must
, be listed on the IACP (International Association of
Chiefs of Police) Consumer Products List for approval
in North Carolina.
4. What form of energy do LIDAR instruments use to
measure a target vehicle's speed? - ANSWER ✔
LIDAR instruments use laser, an electromagnetic
energy, to measure a target vehicle's speed
5. What does the acronym "Laser" stand for? - ANSWER
✔ Laser stands for Light Amplification by Stimulated
Emission of Radiation.
6. What does the acronym "LIDAR" stand for? -
ANSWER ✔ LIDAR stands for Light, Detection, and
Ranging.
7. How is laser energy generated in its simplest form? -
ANSWER ✔ Laser energy is generated by sandwiching
a piece of active material, known as the lasing medium,
between two mirrors to form an optical resonator.
,8. What happens to the atoms of the lasing medium in the
process of generating laser energy? - ANSWER ✔
External energy excites the atoms of the lasing medium,
causing them to enter an excited state and store energy.
9. How is stored energy released as light energy in the
process of generating laser energy? - ANSWER ✔ The
excited atoms release their stored energy as light energy
when stimulated by another light source, resulting in an
amplification of the incoming light.
10. What type of laser is commonly used in Traffic
LIDAR devices? - ANSWER ✔ Traffic LIDAR devices
typically use a semi-conductor type laser.
11. What method does LIDAR use for taking
measurements to determine a target vehicle's speed? -
ANSWER ✔ LIDAR employs the time-of-flight
method for measuring a target vehicle's speed
, 12. What occurs when the trigger of a LIDAR device is
pulled? - ANSWER ✔ When the trigger is activated, the
LIDAR device transmits multiple laser light pulses per
second.
13. How does the time-of-flight measurement method in
LIDAR work? - ANSWER ✔ The time-of-flight
method starts a timer upon pulse transmission and stops
it upon receiving the reflected pulse from the target
vehicle.
14. How does the LIDAR calculate the range to the target
vehicle? - ANSWER ✔ By comparing the time elapsed
between the transmission and reception of laser pulses
with the speed of light, the LIDAR calculates the range
to the target vehicle.
15. What are the three distinguishable characteristics
possessed by the LIDAR signal? - ANSWER ✔ The
LIDAR signal possesses signal speed, wavelength, and
frequency.
Questions With 100% Accurate Solutions
| Sure To Pass | Latest Update 2025/2026 |
Already Graded A
1. What is the minimum passing score required in the
Commission-administered written examination for
certification? - ANSWER ✔ A minimum score of
seventy-five (75) percent is required to pass the
Commission-administered written examination.
2. When is it permissible for the trainee to use the LIDAR
instrument? - ANSWER ✔ The trainee is only allowed
to use the LIDAR instrument once the certificate for the
commission is in hand
3. What requirement must a LIDAR speed-measuring
device meet to be approved for use in North Carolina? -
ANSWER ✔ The LIDAR speed-measuring device must
, be listed on the IACP (International Association of
Chiefs of Police) Consumer Products List for approval
in North Carolina.
4. What form of energy do LIDAR instruments use to
measure a target vehicle's speed? - ANSWER ✔
LIDAR instruments use laser, an electromagnetic
energy, to measure a target vehicle's speed
5. What does the acronym "Laser" stand for? - ANSWER
✔ Laser stands for Light Amplification by Stimulated
Emission of Radiation.
6. What does the acronym "LIDAR" stand for? -
ANSWER ✔ LIDAR stands for Light, Detection, and
Ranging.
7. How is laser energy generated in its simplest form? -
ANSWER ✔ Laser energy is generated by sandwiching
a piece of active material, known as the lasing medium,
between two mirrors to form an optical resonator.
,8. What happens to the atoms of the lasing medium in the
process of generating laser energy? - ANSWER ✔
External energy excites the atoms of the lasing medium,
causing them to enter an excited state and store energy.
9. How is stored energy released as light energy in the
process of generating laser energy? - ANSWER ✔ The
excited atoms release their stored energy as light energy
when stimulated by another light source, resulting in an
amplification of the incoming light.
10. What type of laser is commonly used in Traffic
LIDAR devices? - ANSWER ✔ Traffic LIDAR devices
typically use a semi-conductor type laser.
11. What method does LIDAR use for taking
measurements to determine a target vehicle's speed? -
ANSWER ✔ LIDAR employs the time-of-flight
method for measuring a target vehicle's speed
, 12. What occurs when the trigger of a LIDAR device is
pulled? - ANSWER ✔ When the trigger is activated, the
LIDAR device transmits multiple laser light pulses per
second.
13. How does the time-of-flight measurement method in
LIDAR work? - ANSWER ✔ The time-of-flight
method starts a timer upon pulse transmission and stops
it upon receiving the reflected pulse from the target
vehicle.
14. How does the LIDAR calculate the range to the target
vehicle? - ANSWER ✔ By comparing the time elapsed
between the transmission and reception of laser pulses
with the speed of light, the LIDAR calculates the range
to the target vehicle.
15. What are the three distinguishable characteristics
possessed by the LIDAR signal? - ANSWER ✔ The
LIDAR signal possesses signal speed, wavelength, and
frequency.
