FREE GA CDL Combination Test (2024)

1. When uncoupling, after you unlock the fifth-wheel you should:

pull the tractor clear of the trailer.
ease the pressure on the locking jaws.
pull the tractor partially clear of the trailer.
chock the trailer wheels.

2. Combination vehicles usually:

require more driving skill than single CMVs.
are shorter than single than single CMVs.
are easier to drive than single than single CMVs.
All of the above.

3. Foundation brakes are used:

4. Enough tread is especially important in winter conditions. You need at least ________ tread depth on steering axle tires.

5. You should always try to back toward the driver's side because:

you can more easily correct any steering errors.
backing toward the left side is more dangerous.
you can watch the rear of your vehicle out the side window.
None of the above.

6. To prevent rollover, drivers of combination vehicles should:

keep the cargo as close to the ground as possible.
brake while turning.
keep the load is to one side.
make sure the cargo is not centered and spread out.

7. When you make a quick lane change, the crack-the-whip effect can:

the trailer to swing wide to the left.
improve your traction.
turn the trailer over.
make it harder to turn without skidding.

8. If you are being tailgated, you should:

flash your brake lights.
increase your following distance.
speed up.
move to the left lane.

9. You must have at least 4/32 inch tread depth in every major groove on front tires and at least ___ inch on other tires.

10. When using a fire extinguisher, you should stay:

at least 10 feet away from the fire.
as far away from the fire as possible.
at whatever distance you think is safe.
as close to the fire as possible, without getting burnt.

GA CDL COMBINATION PRACTICE TEST