CDL COMBINATION PRACTICE TEST RHODE ISLAND

11. Loose cargo:
could hurt or kill you during a quick stop.
can be a danger to others and yourself.
All of the above.
12. When the wheels of a trailer lock up:
ABS will increase stopping power.
the vehicle will gradually come to a complete stop.
the trailer will tend to swing around.
13. During a trip:
you should watch gauges to make sure that valve caps are not missing.
you should not watch gauges as they can be misleading.
you should watch gauges for signs of trouble.
14. Which of the following is NOT part of checking the sliding fifth-wheel?
Testing the tractor protection valve
Checking that it is properly greased
Checking that all locking pins are present and locked in place
15. One way to prevent hydroplaning is to:
make sure you have enough tread on your tires.
have less than 4/32 inch tread depth in every major groove on front tires.
take curves at higher speeds.
16. You are coupling a tractor to a semi-trailer. After checking the trailer height but before supplying air to the trailer, you should:
inspect the fifth-wheel.
connect the air lines to the trailer.
lock the trailer brakes.
17. When checking the lights before driving:
you should check them from inside the vehicle.
make sure the parking brake is not set.
you should turn off the engine.
18. If loose or missing, _______ may cause movement between the frame and fifth wheel assembly.
electric connectors
locking pins
mounting bolts
19. What is countersteering?
Locking your wheels while turning in an emergency situation.
Turning the steering wheel quickly the other way after steering in an emergency situation.
Staying off the brake while steering to the right to avoid an accident.
20. If you will be transporting hazardous materials that require placards, you must:
transport the materials at night only.
obtain a special transit permit.
obtain a hazardous materials endorsement.
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