NSC Defensive Driving Course Final Exam Actual Exam Questions And Answers
Practice Questions with Solutions Newest Already Graded A+.
Section 1: Safe Following Distance (1–10)
1. Under ideal conditions, the NSC recommends a minimum following distance of:
A) 1 second
B) 2 seconds
C) 3 seconds
D) 5 seconds
Answer: C (3 seconds)
Rationale: The 3-second rule gives adequate time to perceive and react to sudden
stops.
2. To check your following distance, you should:
A) Estimate by looking at the car ahead
B) Wait until the vehicle ahead passes a fixed object, then count seconds until you
pass it
,C) Use your odometer
D) Ask a passenger to guess
Answer: B
Rationale: The fixed-object method (sign, tree, overpass) accurately measures
time gap.
3. At speeds above 40 mph, you should add:
A) No extra time
B) 1 extra second
C) 2 extra seconds
D) 5 extra seconds
Answer: B (4 seconds total)
Rationale: Higher speeds increase stopping distance; extra time compensates.
4. In heavy rain, a safe following distance is at least:
A) 2 seconds
B) 3 seconds
,C) 4–5 seconds
D) 10 seconds
Answer: C (4–5 seconds)
Rationale: Wet roads reduce tire traction and double braking distance.
5. Tailgating is dangerous primarily because it:
A) Annoys other drivers
B) Reduces your reaction time
C) Is illegal everywhere
D) Wastes fuel
Answer: B
Rationale: Less space means less time to respond to sudden braking.
6. When being tailgated, you should:
A) Brake check the tailgater
B) Speed up
C) Gradually slow down and move to another lane
, D) Ignore them
Answer: C
Rationale: Safest is to let them pass; brake checking causes collisions.
7. On a dry road at 55 mph, total stopping distance is approximately:
A) 100 feet
B) 150 feet
C) 300 feet
D) 500 feet
Answer: C (~300 feet)
Rationale: Perception + reaction (1.5 sec = ~120 ft) + braking distance (~180 ft).
8. For a large truck, you should maintain at least how many seconds following
distance?
A) 2 seconds
B) 3 seconds
C) 4 seconds
Practice Questions with Solutions Newest Already Graded A+.
Section 1: Safe Following Distance (1–10)
1. Under ideal conditions, the NSC recommends a minimum following distance of:
A) 1 second
B) 2 seconds
C) 3 seconds
D) 5 seconds
Answer: C (3 seconds)
Rationale: The 3-second rule gives adequate time to perceive and react to sudden
stops.
2. To check your following distance, you should:
A) Estimate by looking at the car ahead
B) Wait until the vehicle ahead passes a fixed object, then count seconds until you
pass it
,C) Use your odometer
D) Ask a passenger to guess
Answer: B
Rationale: The fixed-object method (sign, tree, overpass) accurately measures
time gap.
3. At speeds above 40 mph, you should add:
A) No extra time
B) 1 extra second
C) 2 extra seconds
D) 5 extra seconds
Answer: B (4 seconds total)
Rationale: Higher speeds increase stopping distance; extra time compensates.
4. In heavy rain, a safe following distance is at least:
A) 2 seconds
B) 3 seconds
,C) 4–5 seconds
D) 10 seconds
Answer: C (4–5 seconds)
Rationale: Wet roads reduce tire traction and double braking distance.
5. Tailgating is dangerous primarily because it:
A) Annoys other drivers
B) Reduces your reaction time
C) Is illegal everywhere
D) Wastes fuel
Answer: B
Rationale: Less space means less time to respond to sudden braking.
6. When being tailgated, you should:
A) Brake check the tailgater
B) Speed up
C) Gradually slow down and move to another lane
, D) Ignore them
Answer: C
Rationale: Safest is to let them pass; brake checking causes collisions.
7. On a dry road at 55 mph, total stopping distance is approximately:
A) 100 feet
B) 150 feet
C) 300 feet
D) 500 feet
Answer: C (~300 feet)
Rationale: Perception + reaction (1.5 sec = ~120 ft) + braking distance (~180 ft).
8. For a large truck, you should maintain at least how many seconds following
distance?
A) 2 seconds
B) 3 seconds
C) 4 seconds
