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Worksheetscdl
Total questions: 22
Worksheet time: 55mins
What happens if the air pressure in a system's air tanks falls below 60 psi?
A warning light will come on.
The vehicle will not shift out of gear.
The front lights will flash.
The vehicle should stop.
When backing, you should:
Move quickly to get out of the way of other drivers.
Try not to use your mirrors.
Start from any position
Use a helper, if possible
What can happen if the air pressure gets too low in an air brake system?
The brakes may squeak.
The brakes may not work
The brakes may be sluggish
The brakes will be very sensitive
What is Gross Vehicle Weight (GVW)?
The total weight of a vehicle and its load
The total weight of a vehicle's tractor
The total weight of a loaded trailer
The weight of a tractor and trailer, before adding in the load
If a vehicle is equipped with power steering, the hoses should be checked:
For leaks.
To ensure that they are still clear.
To ensure that they are connected to the battery.
To ensure that they contain the proper amount of play.
Which of the following is acceptable if found during a pre-trip inspection?
Tires in mismatched sizes
Tread depth of 2/32 of an inch in the grooves of the front tires
Tires manufactured by different makers
Cracks in the tires
When starting a vehicle, the coolant temperature gauge should
Not change from its original position
Gradually rise to the normal operating range
Jump quickly to the normal operating range
Flash until it reaches the normal operating range
When driving with a load, the driver should:
Stop and check on the cargo within the first 50 miles of the trip.
Ask other drivers about the condition of their load.
Use the side mirrors only to check on the cargo.
Not check on the cargo if it was secured properly before starting the trip
On a truck with air brakes, the braking system’s air compressor:
Pumps air into the air storage tanks.
Fills the tires.
Moves air to the back of the truck.
Cleans the brakes
When you need to brake, how can you warn drivers behind you?
Tap on the brakes a couple of times.
Stick your arm out the window
Swerve within your lane
Change lanes
After a tire has been changed, the driver should stop after a short distance to:
Check the tightness of the lug nuts.
Ensure that the tire tread depth is good.
Ensure that the correct tire was changed
See if rocks have gotten into the tread.
When using a turn signal, you should not:
Signal early
Signal continuously.
Cancel the turn signal after completing the turn.
Allow the turn signal to stay on long after the turn has been completed
Poisonous fumes can enter the cab due to:
A defective exhaust system.
The wrong type of fuel being used
A lack of oil in the engine.
Under-inflated tires.
When inspecting engine compartment belts during the vehicle inspection test:
The belts should be checked for snugness, each with up to three inches of play.
The water pump belt does not need to be identified.
The air compressor belt should be removed
The applicant must identify which items are not belt-driven, if any.
Move over laws require:
Trucks to use the left lane.
All vehicles to vacate the lane closest to an emergency vehicle that is stopped with its lights flashing.
All vehicles to use the left lane.
All vehicles to move to the left lane if a flatbed trailer is in the right lane.
When driving down a steep grade, your brakes may fade. What happens if brakes fade?
They become quieter.
They become less effective.
They work better than usual.
They work differently from front to back.
When using your mirrors, you should frequently look at your tires to:
Watch for tire fires.
See if the tires are rolling properly.
See if the tread is sufficient
Get a sense of the size of the tire in relation to other vehicles.
If driving in a foggy area, you should not:
Decrease your speed.
Increase your speed.
Use your low beam headlights.
Turn on your four-way flashers.
In a dual air brake system:
Each system has separate air tanks, hoses, and lines.
The systems share air tanks, but each has its own separate hoses and lines.
Each system uses the same lines and hoses.
One system is the main braking system and a second system is ready to be used if the first one fails.
How to tell if you have ABS failure in one or more wheels
notice the lamp is on after you have been driving for a few seconds, or if it comes on again after it's initial bulb check
Truck will not start
The lamp flickers on and off
The truck will rattle and the lamp will stay on
Defects in exhaust can be extremely serious because
Poisonous fumes leaking into the cab
Poisonous fumes leaking into sleeper berth
Truck could smoke up
Fire can start in the exhaust
When doing a pre trip inspection check exhaust for
Anything loose, broken, missing or leaking
Pipes, mufflers,mounting brackets, bolts or nuts, clamps, vertical stacks
Parts bumping or rubbing up against parts of fuel system, tires or other moving parts
You don't do pretrip inspections. Your mechanics handle that.
