ELDT - Entry Level Driver Training Extreme Driving Conditions Questions and Answers 1 — Questions and Answers
Question 1: When driving a commercial motor vehicle on a snow-packed road, you should reduce your speed by at least:
- One-quarter (25%)
- One-third (33%)
- One-half (50%) (Correct answer)
- It is not necessary to reduce speed if you have snow tires.
Correct answer: One-half (50%)
The CDL manual recommends reducing your speed by half or more on a snow-packed road. This significant reduction in speed is necessary to compensate for the loss of traction and increased stopping distance.
Question 2: You are driving a fully loaded tractor-trailer in heavy rain and find that your vehicle is hydroplaning. Which of the following is the correct immediate action to take?
- Brake firmly and steer sharply towards the shoulder.
- Release the accelerator and push in the clutch. (Correct answer)
- Accelerate slightly to push through the water.
- Turn on your cruise control to maintain a steady speed.
Correct answer: Release the accelerator and push in the clutch.
When hydroplaning, you should immediately release the accelerator to allow the vehicle to slow down on its own. If you have a manual transmission, depressing the clutch helps the wheels regain traction by disengaging the engine. Braking or making sharp steering movements can worsen the skid.
Question 3: Which of these is a key indicator of potential black ice on the roadway?
- The temperature is well above freezing.
- You see heavy spray coming from the tires of vehicles ahead.
- The road surface looks wet when the temperature is near or below freezing. (Correct answer)
- Your brakes feel more responsive than usual.
Correct answer: The road surface looks wet when the temperature is near or below freezing.
Black ice is a thin, transparent layer of ice that makes the road look merely wet. It often forms when temperatures are close to freezing. A lack of tire spray from other vehicles when the road appears wet is a strong warning sign of its presence.
Question 4: A driver is preparing for a trip in freezing conditions. Which of the following is NOT a critical pre-trip inspection item specifically for extreme cold weather?
- Checking coolant and antifreeze levels.
- Ensuring the air conditioning system is fully charged. (Correct answer)
- Verifying that defroster and heating equipment are working.
- Inspecting tires for proper inflation and tread depth.
Correct answer: Ensuring the air conditioning system is fully charged.
While all pre-trip checks are important, the air conditioning system is not critical for safe operation in extreme cold. However, checking coolant/antifreeze, ensuring the defroster/heater works for visibility, and inspecting tires for proper traction are all essential safety measures for winter driving.
Question 5: If your commercial vehicle begins to skid due to slippery conditions, what is the first action you should take?
- Slam on the brakes to stop as quickly as possible.
- Accelerate to power out of the skid.
- Steer sharply in the opposite direction of the skid.
- Take your foot off the accelerator and stop braking. (Correct answer)
Correct answer: Take your foot off the accelerator and stop braking.
The first and most important step in recovering from most skids is to restore rolling traction to the tires. This is achieved by taking your foot off the accelerator and disengaging the brakes. This allows the wheels to start rolling again, which is necessary to regain steering control.
Question 6: When driving in high crosswinds, which of the following is the most appropriate course of action?
- Increase your speed to cut through the wind more effectively.
- Maintain a firm grip on the steering wheel and reduce your speed.
- Move to the far-right lane to be closer to the shoulder. (Correct answer)
- Activate your cruise control to ensure a consistent speed.
Correct answer: Move to the far-right lane to be closer to the shoulder.
High winds can push a large vehicle, especially an empty one, out of its lane. The proper response is to slow down to reduce the effect of the wind and maintain a firm grip on the steering wheel to make necessary corrections. It's often best to find a safe place to stop if winds are severe enough to affect vehicle control.
ELDT - Entry Level Driver Training Extreme Driving Conditions Questions and Answers 1
When driving a commercial motor vehicle on a snow-packed road, you should reduce your speed by at least: