Mountain Driving - ONLINE CDL SCHOOL

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Mountain Driving

Build confidence with 10 original questions about Mountain Driving. Review your answers and explanations after finishing.

Supplemental study practice. This is not a government licensing exam or ELDT certification, and does not replace hands-on training. Follow your state’s current handbook.

1 / 10

What should you do if you must drive through deep water on a mountain road?

Release the brakes completely

Slow down, use a low gear, and maintain light brake pressure

Turn off your engine

Speed up to get through quickly

2 / 10

What is a recommended way to check for ice on mountain roads during winter driving?

Rely on road signs only

Look for a lack of spray from other vehicles

Check the color of the road surface

Drive faster to test traction

3 / 10

Why is it important to remove ice and snow from hand holds, steps, and deck plates before entering the cab in winter?

To prevent engine overheating

To reduce the danger of slipping

To improve tire traction

To increase fuel efficiency

4 / 10

What should you do if your brakes get wet while driving in mountainous areas?

Ignore it and keep driving normally

Maintain light pressure on the brakes to heat and dry them

Pump the brakes rapidly

Apply the brakes hard to stop immediately

5 / 10

What should you do if you see a traffic jam ahead while descending a mountain in winter conditions?

Honk your horn and proceed

Drive alongside other vehicles

Speed up to get through quickly

Slow down or stop to wait for it to clear

6 / 10

Why should you avoid using the engine brake or speed retarder on slippery mountain roads?

They can cause the driving wheels to skid

They increase fuel consumption

They make the engine overheat

They reduce visibility

7 / 10

What is the minimum tread depth required on front tires for safe winter mountain driving?

2/32 inch in every major groove

6/32 inch in every major groove

4/32 inch in every major groove

1/32 inch in every major groove

8 / 10

When driving in fog in mountainous areas, which of the following should you do?

Drive faster to get out of the fog quickly

Turn off all vehicle lights

Use low-beam headlights and fog lights

Use high-beam headlights for better visibility

9 / 10

What is the safest action to take if you become sleepy while driving in mountainous terrain?

Drink coffee and keep driving

Turn up the radio volume

Open the window for fresh air

Stop at the nearest safe place to rest

10 / 10

Why is it important to check your exhaust system for leaks before driving in winter mountain conditions?

It helps the engine warm up faster

It prevents tire blowouts

It improves fuel economy

Exhaust leaks can let carbon monoxide into the cab, causing drowsiness or death

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