CA CDL DOUBLES TRIPLES TEST - PRACTICE TEST

11. Weight that is loaded so there is a high center of gravity:
reduces the chance that the load will shift to the side or fall off.
makes a vehicle easier to handle.
causes greater chance of rollover.
12. If you must stop on a one-way or divided highway, you should place warning devices _______ toward the approaching traffic.
5, 50 and 500 feet
10, 100 and 200 feet
5, 25 and 50 feet
13. During freezing weather, which area is most likely to be slippery after it rains?
Bridges.
Shaded areas.
All of the above.
14. Many large vehicles have convex (curved, "spot, "fisheye") mirrors. Convex mirrors:
make things look smaller and farther away than they really are.
misrepresent reality by showing a larger area than flat mirrors.
are illegal in most states.
15. You as a driver should always:
make emergency plans when you see a hazard.
reduce your following distance.
stay in your lane.
16. Which of the following is not a braking system on a truck?
Service brake
Parking brake
Steering brake
17. The ABS malfunction lamp on the instrument panel is:
Yellow
Red
Orange
18. When driving in hot weather, drivers should inspect tires:
every 2 hours or every 100 miles.
every 3 hours or every 75 miles.
every 4 hours or every 200 miles.
19. The tractor protection valve:
controls the emergency brakes on combination vehicles.
keeps air in the tractor brake system should the trailer break away or develop a bad leak.
supplies air to the trailer air tanks.
20. Most heavy-duty vehicles use:
solid brakes.
air brakes.
hydraulic brakes.
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