CDT Driver Safety & Risk Management 3

Question 1

During a pre-trip inspection lesson, a trainer finds a tire with a tread depth of 2/32 inch on a student's vehicle. What action should be taken?

Accepted Answer

Remove the vehicle from service until the tire is replaced

Answer

2/32 inch is the legal minimum tread depth in the US; a tire at this level must be replaced before the vehicle is safely operated.

Question 2

A student driver approaches a green traffic light at an intersection. According to risk management principles, the student should:

Accepted Answer

Cover the brake and scan cross traffic before entering

Answer

Covering the brake and scanning cross traffic at green lights reduces risk from red-light runners and pedestrians entering unexpectedly.

Question 3

Which environmental factor MOST significantly reduces a driver's stopping distance performance?

Accepted Answer

Wet pavement

Answer

Wet pavement dramatically reduces tire-road friction, increasing stopping distances by up to 50% compared to dry conditions.

Question 4

A CDT candidate should know that 'overdriving headlights' means:

Accepted Answer

Driving at a speed where stopping distance exceeds headlight illumination range

Answer

Overdriving headlights occurs when a vehicle travels too fast to stop within the distance the headlights illuminate, a major nighttime crash factor.

Question 5

When a student is merging onto a freeway, the trainer should emphasize that the student must:

Accepted Answer

Match freeway traffic speed and find an appropriate gap before merging

Answer

Matching traffic speed and identifying a safe gap before merging prevents rear-end collisions and lane change conflicts.

(CDT) Certified Driver Trainer Practice Test