COMBINATION PRACTICE TEST - OK CDL

11. A bridge formula permits:
less maximum axle weight for axles that are far apart.
less maximum axle weight for axles that are close together.
more maximum axle weight for axles that are closer together.
12. To be in the proper position for coupling, the fifth wheel should:
tilted up towards the rear of the tractor.
have its jaws closed around the shank of the kingpin.
be tilted down towards the rear of the tractor.
13. When backing with a trailer, you should:
look at your line of travel before you begin backing.
check your mirrors on both sides frequently.
All of the above.
14. If your brakes get wet, it can cause them:
to apply unevenly.
to be weak.
All of the above.
15. How can you tell if a converter dollie has ABS?
There is an ABS plaque on the right side of the dolly.
There is a red lamp on the left side of the dolly.
There is a yellow lamp on the left side of the dolly.
16. If you must make an emergency stop, you should:
use the hand brake before the brake pedal.
brake in a way that will keep your vehicle in a straight line.
apply the brakes as hard as you can to lock them.
17. As you approach off ramps and on ramps, remember:
to always brake and turn at the same time.
that downgrades make it easier to reduce speed.
that the posted speed limit may not be safe for larger vehicles.
18. One way to prevent hydroplaning is to:
have less than 4/32 inch tread depth in every major groove on front tires.
take curves at higher speeds.
make sure you have enough tread on your tires.
19. After starting the engine, the ABS light stays on. This means:
the ABS is not working properly.
the ABS is in Neutral.
the ABS is working properly.
20. The best way to recognize that your trailer has started to skid is:
by feeling the brakes come on.
by recognizing tire failure.
by seeing it in your mirrors.
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