NC Radar State Exam
Study online at https://quizlet.com/_c56ft9
1. Brazier V. City of Philadelphia: Affirmed a conviction under a city ordinance for speeding over 7 mph
- "It is only necessary to resort to the most cursory observation to find the evidence that many drivers of automobiles
in their desire to put their novel and rapid machines to a test of their capacity, drive such vehicles through the streets
with a reckless disregard of the rights of others." (1906)
2. 3 Elements of driving: 1.) Driver
2.) The vehicle
3.) Road Surface
3. Joseph Nathan's Famous Firsts: The very first traffic law in America was passed on June 12, 1652, by
New Amsterdam (now New York).
4. Who enacted the first automobile speed regulation and when?: Hartford, Connecti-
cut, lays claim to the distinction of having the first automobile speed regulation. It was enacted in 1901 and limited
speeds to 12 MPH in the country and 8 MPH within the city limits.
5. Basic Speed Law: law stating that you may not drive faster than is safe and prudent for existing conditions,
regardless of posted speed limits. (Unsafe for conditions)
6. Absolute speed law: Violates the posted speed limit.
7. Prima Facie: Means "at first sight, glance." (NO PRIMA FACIE LAW IN NC)
8. What is the basic goal of police work?: To protect lives and property.
9. Radar is only a _________?: Tool.
10. ____% of fatal crashes occur in _____MPH or less of speed zones.: 1.) 15%
2.) 40 MPH
11. ____% of fatal crashes occur in ____MPH or more speed zones.: 1.) 65%
2.) 55 MPH
12. Elements of speed offense: 1.) Driver Identification
2.) Location
3.) Speed
4.) Conditions
13. Why was the speed limit of 55 imposed to save fuel?: Because it was the median efficient
speed.
14. At the end of ______ when speed limit was lowered it was found that traffic
fatalities had been reduced by _______ which translates to ______%.: 1.) 1974
2.) 8,856
3.) 16.8 %
1/5
, NC Radar State Exam
Study online at https://quizlet.com/_c56ft9
15. The probability of a fatality from a crash roughly doubles as speeds go from
____MPH to ____MPH and doubles again as speeds go to _____MPH.: 1.) 45 MPH
2.) 60 MPH
3.) 70 MPH
16. When did the oil embargo end?: April 29th, 1974
17. The 55 MPH speed law remained in effect until....: April 2, 1987.
18. Austrian physicist that discovered that relative motion causes signal frequen-
cy to change-----he was studying sound waves when he made the discovery.: -
Christian Johann Doppler
19. Frequency change only occurs when there is _________ __________.: Relative Motion
20. Relative motion occurs when.......: 1.) Radar stands still and the object moves.
2.) The object moves and the radar stands still.
3.) If they are both moving as long as they move at different speeds or in different directions so that the space between
them changes.
21. Spinal cord injuries caused by wrecks dropped as much as ______ to ____%.: 60
to 70 %
22. Disabling injuries resulting from wrecks dropped ______% after 1973.: 10%
23. NHS: National Highway Safety
24. When was the NHS signed by congress?: November 28th, 1995
25. A study in 1977 found raising the speed limit had relatively little effect on the
number of crashes. However, there was a ____% increase in fatalities. The _____%
translates to ______ lives.: 1.) 9%
2.) 9%
3.) 3500 lives
26. Approximately 25% of fatal crashes in NC occur where?: In local jurisdictions.
27. Angular effect: When there is an angle between the radar and target.
28. What is the other term for Angular effect?: Cosine effect.
29. In NC, the stationary radar must be set up to where the angle between the
radar and target is no greater that ____ degrees.: 20
30. Range button on RADAR function: When you press the range button you are adjusting the RADARs
sensitivity.
31. Audio tracking: Allows the user to use their sense of hearing to supplement their visual observation.
2/5
Study online at https://quizlet.com/_c56ft9
1. Brazier V. City of Philadelphia: Affirmed a conviction under a city ordinance for speeding over 7 mph
- "It is only necessary to resort to the most cursory observation to find the evidence that many drivers of automobiles
in their desire to put their novel and rapid machines to a test of their capacity, drive such vehicles through the streets
with a reckless disregard of the rights of others." (1906)
2. 3 Elements of driving: 1.) Driver
2.) The vehicle
3.) Road Surface
3. Joseph Nathan's Famous Firsts: The very first traffic law in America was passed on June 12, 1652, by
New Amsterdam (now New York).
4. Who enacted the first automobile speed regulation and when?: Hartford, Connecti-
cut, lays claim to the distinction of having the first automobile speed regulation. It was enacted in 1901 and limited
speeds to 12 MPH in the country and 8 MPH within the city limits.
5. Basic Speed Law: law stating that you may not drive faster than is safe and prudent for existing conditions,
regardless of posted speed limits. (Unsafe for conditions)
6. Absolute speed law: Violates the posted speed limit.
7. Prima Facie: Means "at first sight, glance." (NO PRIMA FACIE LAW IN NC)
8. What is the basic goal of police work?: To protect lives and property.
9. Radar is only a _________?: Tool.
10. ____% of fatal crashes occur in _____MPH or less of speed zones.: 1.) 15%
2.) 40 MPH
11. ____% of fatal crashes occur in ____MPH or more speed zones.: 1.) 65%
2.) 55 MPH
12. Elements of speed offense: 1.) Driver Identification
2.) Location
3.) Speed
4.) Conditions
13. Why was the speed limit of 55 imposed to save fuel?: Because it was the median efficient
speed.
14. At the end of ______ when speed limit was lowered it was found that traffic
fatalities had been reduced by _______ which translates to ______%.: 1.) 1974
2.) 8,856
3.) 16.8 %
1/5
, NC Radar State Exam
Study online at https://quizlet.com/_c56ft9
15. The probability of a fatality from a crash roughly doubles as speeds go from
____MPH to ____MPH and doubles again as speeds go to _____MPH.: 1.) 45 MPH
2.) 60 MPH
3.) 70 MPH
16. When did the oil embargo end?: April 29th, 1974
17. The 55 MPH speed law remained in effect until....: April 2, 1987.
18. Austrian physicist that discovered that relative motion causes signal frequen-
cy to change-----he was studying sound waves when he made the discovery.: -
Christian Johann Doppler
19. Frequency change only occurs when there is _________ __________.: Relative Motion
20. Relative motion occurs when.......: 1.) Radar stands still and the object moves.
2.) The object moves and the radar stands still.
3.) If they are both moving as long as they move at different speeds or in different directions so that the space between
them changes.
21. Spinal cord injuries caused by wrecks dropped as much as ______ to ____%.: 60
to 70 %
22. Disabling injuries resulting from wrecks dropped ______% after 1973.: 10%
23. NHS: National Highway Safety
24. When was the NHS signed by congress?: November 28th, 1995
25. A study in 1977 found raising the speed limit had relatively little effect on the
number of crashes. However, there was a ____% increase in fatalities. The _____%
translates to ______ lives.: 1.) 9%
2.) 9%
3.) 3500 lives
26. Approximately 25% of fatal crashes in NC occur where?: In local jurisdictions.
27. Angular effect: When there is an angle between the radar and target.
28. What is the other term for Angular effect?: Cosine effect.
29. In NC, the stationary radar must be set up to where the angle between the
radar and target is no greater that ____ degrees.: 20
30. Range button on RADAR function: When you press the range button you are adjusting the RADARs
sensitivity.
31. Audio tracking: Allows the user to use their sense of hearing to supplement their visual observation.
2/5
