CDT Special Driving Conditions Training 2 — Questions and Answers
Question 1: When driving in dense fog, a CDT instructor should teach students to use which lighting combination?
- High beams and hazard lights
- Low beams only
- Low beams with front fog lights if equipped (Correct answer)
- No lights to avoid glare reflection
Correct answer: Low beams with front fog lights if equipped
Low beams combined with front fog lights (if the vehicle has them) provide the best visibility in dense fog without reflecting glare back at the driver.
Question 2: A student driver begins to experience aquaplaning on a wet highway. What is the FIRST corrective action the instructor should teach?
- Apply brakes firmly to slow the vehicle
- Steer sharply toward the shoulder
- Ease off the accelerator and hold the steering wheel straight (Correct answer)
- Downshift immediately to use engine braking
Correct answer: Ease off the accelerator and hold the steering wheel straight
Gently releasing the accelerator allows the tires to regain traction with the road surface without inducing a spin from sudden braking or steering input.
Question 3: Which following distance is most appropriate when driving on snow-packed roads?
- 2 seconds
- 4 seconds
- 8–10 seconds (Correct answer)
- 12 seconds or more
Correct answer: 8–10 seconds
Snow-packed roads dramatically increase stopping distances, requiring at least 8–10 seconds of following distance to allow safe reaction and braking time.
Question 4: When crossing a flooded roadway of unknown depth, instructors should teach students to:
- Accelerate through quickly to avoid stalling
- Cross at the lowest point of the road
- Turn around and find an alternate route (Correct answer)
- Partially open a window and proceed slowly
Correct answer: Turn around and find an alternate route
Turn Around, Don't Drown is the standard safety guideline because water depth on flooded roads is deceptive and even shallow water can sweep a vehicle away.
Question 5: During a nighttime training session, a student is blinded by oncoming high beams. The instructor should coach the student to:
- Flash high beams at the oncoming driver repeatedly
- Look toward the right edge of the road or lane markings (Correct answer)
- Close both eyes briefly until the vehicle passes
- Brake immediately and pull to the shoulder
Correct answer: Look toward the right edge of the road or lane markings
Focusing on the right edge line or shoulder markings allows the driver to maintain lane position without looking directly into the blinding headlights.
Question 6: A student asks why safe speed on a curve is lower in rainy conditions even when the posted speed limit is the same. The best instructor explanation is:
- Posted limits apply only in dry conditions by federal law
- Wet pavement reduces tire-road friction, increasing the risk of skidding through the curve (Correct answer)
- Rain reduces driver reaction time by narrowing the visual field
- Wet road markings change the legal boundary of the lane
Correct answer: Wet pavement reduces tire-road friction, increasing the risk of skidding through the curve
Reduced tire-road friction on wet pavement means lateral (cornering) forces can overcome traction at lower speeds than on dry pavement.
Question 7: When driving through a dust storm that suddenly drops visibility to near zero, the recommended action taught in CDT programs is to:
- Continue at reduced speed with hazard lights on
- Pull completely off the road, turn off lights, and keep foot off the brake (Correct answer)
- Stop in the rightmost travel lane with all lights on
- Follow the taillights of the vehicle ahead closely
Correct answer: Pull completely off the road, turn off lights, and keep foot off the brake
Pulling completely off the roadway and turning off lights prevents other drivers from steering toward your lights and striking your vehicle.
CDT Special Driving Conditions Training 2
When driving in dense fog, a CDT instructor should teach students to use which lighting combination?