CAR LICENSE

GENERAL KNOWLEDGE

AIR BRAKES

HAZARDOUS MATERIAL

PASSENGER

TANKER

DOUBLES/TRIPlES

COMBINATION

CAR QUIZ 1-18

Combination Test 2

1. Before you back under a trailer, make sure the:
2. If the service air line comes apart while you are driving a combination vehicle but the emergency line stays together, what will happen right away?
3. The air leakage rate for a combination vehicle (engine off, brakes on) should not Be more than ____ psi per minute.
4. In normal driving, some drivers use the hand valve before applying the brake pedal to prevent a jackknife. Which of these statements is true?
5. The driver crosses the air lines when hooking up to an old trailer. What will happen?
6. Why should you lock the tractor glad hands (or dummy couplers) to each other when you are not towing a trailer?
7. The safety catch for the fifth wheel locking lever must be ____ for a coupling to be complete.
8. The front trailer supports are up and the trailer is resting on the tractor. Make sure:
9. You have a major leak in the service line and you put on the brakes. Service air pressure will escape and cause the:
10. When backing under a tractor under a trailer you should expect: