CDL COMBINATION PRACTICE TEST (KS)

11. When transporting cargo, the cargo should be checked:
only after the trip.
before the trip and after the first 50 miles.
before the trip and after the first 150 miles.
only before the trip.
12. In combination vehicles with air brakes, the trailer air supply control should pop out when the air pressure falls within the range of:
20 to 45 psi
10 to 20 psi
50 to 75 psi
100 to 120 psi
13. Transporting hanging meat requires special attention. Why?
Because hanging meat can be an unstable load with a high center of gravity.
Because refrigerated trucks have less traction.
Because you have to drive fast to get it delivered fresh.
All of the above.
14. Headache racks:
help you keep weights within legal limits.
can blind other drivers.
protect you from being hit by your cargo.
None of the above.
15. Which of these statements about brakes is true?
Brake fade does not result from excessive heat.
To stop, the brake shoes and linings are pushed against the outside of the drum.
The lighter the vehicle, the more heat the brakes absorb to stop it.
None of the above.
16. When driving in a construction zone, if a construction worker is near the road, you should:
further reduce your speed.
come to a complete stop.
speed up.
maintain a constant speed.
17. Empty trucks:
have better traction than fully-loaded trucks.
require shorter stopping distances than fully-loaded trucks.
may have poor traction.
None of the above.
18. What is a pull up when referring to truck driving?
When a driver stops and pulls forward to get a better position.
A driving maneuver used to pull your vehicle over to the side of the road and stop.
Using the speedometer to know when to shift up.
A specific maneuver used to decelerate smoothly in the exit lane.
19. When approaching a stopped bus, you must be aware that:
passing a stopped bus is illegal.
a student may be driving the bus.
passengers may cross in front of or behind the bus.
passengers crossing in front of the bus can always see you.
20. When backing a trailer, you should:
turn the steering wheel in the direction you want to go.
never make pull-ups to reposition your vehicle.
avoid correcting the drift.
try to position your vehicle so you can back in a straight line.
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