Washington CDL permit (CLP) knowledge tests — Practice

Question 1

What is the left lane rule?

Accepted Answer

Heavy vehicles may only be driven in the left lane of a road with three lanes traveling in one direction if making a left turn.

Question 2

Poisonous fumes can enter a cab due to:

Accepted Answer

A defective exhaust system.

Question 3

When approaching a railroad crossing, a bus driver should:

Accepted Answer

Stop the bus between 15 and 50 feet from the nearest track.

Question 4

In cool weather, as the temperature begins to rise and ice begins to melt:

Accepted Answer

The road will become even more slippery.

Washington CDL permit (CLP) knowledge tests — practice