CDL PRACTICE TEST (SD) - GENERAL KNOWLEDGE TEST

11. ABS brakes help you:
find an escape route when the service brakes fail.
avoid wheel lock up.
lock up the wheels in an emergency stop.
downshift before starting down a hill.
12. When inspecting brakes, you should look for:
pads with oil, grease, or brake fluid on them.
shoes worn dangerously thin.
cracked drums.
All of the above.
13. When driving on slippery surfaces, a lack of spray from other vehicles indicates that:
the pavement is dry.
ice has formed on the road.
there is no ice on the road surface.
the road hasn't started to ice up yet.
14. If the ABS is not working:
the truck will still have normal brakes.
the truck will have no brakes.
you should immediately reduce your speed.
All of the above.
15. In ideal conditions, if you are driving at 55 mph your vehicle will travel a minimum of _______ until you can bring it to a complete stop.
250 feet
At least 350 feet
209 feet
419 feet
16. ________ is the distance your vehicle will travel, in ideal conditions, while you are braking.
Braking distance
Perception distance
Stopping distance
Reaction distance
17. Retarders:
reduce the danger of slipping.
improve gas mileage.
help slow a vehicle, reducing the need for using brakes.
reduce braking distance.
18. Which of the following is NOT a correct action in the event of brake failure?
Putting the vehicle into a lower gear.
Looking for an escape route.
Using the parking brake.
Weaving from side to side to slow down.
19. Front-end header boards:
protect you from your cargo in case of an accident.
protect your from glare and eyestrain.
protect the cargo from weather.
can cause your vehicle to hydroplane.
20. Emergency brakes are:
required on all vehicles.
not required on doubles.
not required on buses.
not required on commercial vehicles with air brakes.
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