1 . ____ are the cause of more than half of all accident-related truck driver deaths.

Truck rollovers
Motorcycles
Slippery roads
Pedestrians
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2 . If you plan to slow down, you can warn drivers behind you by:

Slamming on the brakes.
Tapping the brakes a few times and before braking.
Turning on one set of turn signals.
Putting your hand out the driver's side window and waving.
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3 . To test the trailer service brakes, you should:

Move the vehicle forward slowly and apply the brakes with the brake pedal.
Reverse the vehicle slowly and apply the brakes with the hand control.
Reverse the vehicle slowly and apply the brakes with the brake pedal.
Move the vehicle forward slowly and apply the brakes with the hand control.
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4 . What does the trailer air supply control look like?

It is a square blue knob.
It is a triangular yellow knob.
It is an eight-sided red knob.
It is a circular orange knob.
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5 . During a visual check of a coupling, you should make sure:

The kingpin is polished.
There is no space between the upper and lower fifth wheel.
The locking jaws are separate from the kingpin.
The pintle hook is detached.
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6 . To release a dolly's air brakes before positioning the converter dolly for coupling, you should:

Remove the dolly parking brake control.
Open the air tank petcock.
Raise the dolly support.
Remove the pintle hook.
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7 . If using air tanks with manually operated drains, how often should you drain the tanks?

Every day
Once a week
Once a month
Once every 3,000 miles
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8 . Look for matching colors when coupling glad hands. Service lines are often:

Green.
Orange.
Red.
Blue.
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9 . Avoid needing to make sudden lane changes by:

Using your horn to encourage other drivers to move out of your lane.
Only driving slower than the posted speed limit.
Watching the road ahead while driving.
Pulling off the road and waiting when there is high traffic.
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10 . When driving down a steep grade:

You should ride your brakes all the way down.
Shift into a higher gear as a way to slow down your vehicle.
Shift into lower gears as a way to slow down your vehicle.
The truck should be put in neutral as a way to slow down your vehicle.
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11 . When inspecting a power steering-equipped vehicle, you should be sure that:

The fluid is at the proper level.
The hoses are connected to the battery.
The hoses do not contain any fluid.
Only small leaks are present.
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12 . The emergency brake system uses:

Only parts of the parking brake system.
Only parts of the service brake system.
Parts of both the parking and service brake systems.
Only parts unique to the emergency brake system.
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13 . Air pressure in the ____ air line is controlled by either the foot brake or trailer hand brake.

Emergency
Service
Rear
Auxiliary
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14 . When traveling more slowly than 40 mph, maintain at least ____ of following distance per every 10 feet of your vehicle.

One second
Two seconds
Three seconds
Four seconds
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15 . The service air line is attached to the:

Relay valves.
Supply line.
Emergency air line.
Steering wheel.
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16 . If you must drive in reverse, it is helpful to:

Drive as fast as possible and get it over with.
First exit the truck and walk the path to look for obstacles.
Use only the passenger side mirror.
Stick your head out the window and look backward.
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17 . A vehicle should be equipped with all of the following, except:

A fire extinguisher.
Spare electrical fuses.
Warning devices for parked vehicles, such as flares.
A spotlight.
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18 . A visual low pressure warning signal should activate before air pressure drops to a level between:

55 and 75 psi.
35 and 50 psi.
75 and 100 psi.
40 and 60 psi.
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19 . In a set of doubles, the shut-off valves at the rear of the first trailer should be:

Removed.
Closed.
Polished.
Open.
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20 . Trailers built before 1975 are:

Required to have spring brakes.
Not required to have spring brakes.
Unsafe to drive.
Prohibited from public roadways.
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