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ID CDL DOUBLES TRIPLES TEST - PRACTICE TEST

11. Dual tires:
should not come in contact with each other.
should come in contact with each other whenever possible.
should always come in contact with each other.
12. When backing a trailer, you should turn the steering wheel to the right to make the trailer go left (or vice versa). Once the trailer starts to turn, you should:
turn the wheel the other way to follow the trailer.
keep backing up.
turn the wheel more  in the direction you want to go.
13. Before each trip, you must make sure:
the cargo is balanced and secured.
your cargo obscures your view to the sides.
the cargo has a high center of gravity.
14. A red triangle with an orange center means:
Law enforcement vehicle
Slow-moving vehicle
The vehicle is hauling hazardous materials
15. A bridge formula permits:
more maximum axle weight for axles that are closer together.
less maximum axle weight for axles that are far apart.
less maximum axle weight for axles that are close together.
16. When driving in very hot weather, you may have to:
reduce your speed to prevent overheating.
decrease your following distance.
increase your speed until the tires cool off.
17. With an engine fire, you should:
not shoot foam from the vehicle’s underside.
open the hood as soon as possible.
turn the engine off as soon as possible.
18. When driving trucks with trailers, drivers should:
push the brake pedal to the floor when braking.
make quick lane changes.
avoid making sudden movements with the steering wheel.
19. Because of the "crack-the-whip" effect, doubles and triples:
are more likely to run out of gas than other combination vehicles.
are much slower than other combination vehicles.
are more likely to turn over than other combination vehicles.
20. Doubles:
require more reaction time than straight trucks.
are less likely to rollover than straight trucks.
None of the above.
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