1 . When traveling in heavy traffic, the safest driving speed is:

The posted speed limit.
The speed of surrounding traffic.
A speed much slower than the flow of surrounding traffic.

2 . When braking while ABS is activated, you should:

Pump the brake pedal.
Brake as you normally would.
Brake harder than you normally would.
Brake softer than you normally would.

3 . Retreaded tires:

May be used on the front axle of a school bus.
May be used on the rear axles of a school bus.
Cannot be used on a school bus.

4 . How many daily hours of sleep does an adult need to maintain alertness?

Six to seven
Seven to eight
Eight to nine

5 . Regardless the size of the cargo, it should be secured by at least ____ tie-down(s).

One
Two
Three
Four

6 . After two violations of any state law regarding hand-held mobile phone use:

You will need to cancel your mobile phone service.
Your CDL will be disqualified.
You will be required to drive 10 mph under the posted speed limit for a period of time.

7 . The radiator cap:

Should not be removed when the coolant is hot.
Can be removed when the coolant is hot.
Should be cool to the touch under normal driving conditions.

8 . When leaving your vehicle unattended:

The parking brake should be used.
The parking brake only needs to be used if the vehicle is parked on a slope.
The parking brake should not be used, as it can damage the tires.

9 . Move over laws require:

Drivers to move into lanes that are not next to stopped law enforcement vehicles.
People to sit on the edge of their seats while in moving vehicles.
Vehicles to stop before approaching a law enforcement vehicle pulled over on the side of a road

10 . When stopping in an emergency situation, you should:

Veer your trailer to the right and stop.
Stop in a straight line.
Veer your trailer to the left and stop.

11 . If making a tight turn, the operator of a CMV should:

Be able to drive as fast as the driver of a car.
Not be concerned about speed, but focus on the road.
Warn drivers behind by braking early and slowing gradually.

12 . A vehicle stopped at a green light may indicate that the driver:

Is impaired.
Is colorblind.
Does not know the rules of the road.
Is very patient.

13 . When slowing down, you should ____ to warn other drivers

Use a turn signal
Sound your horn
Tap your brakes

14 . Before driving a vehicle with air brakes, you should ensure that the spring brakes come on automatically when:

Air pressure falls below 45 psi.
Air pressure falls below 20 psi.
Driving downhill.
Driving uphill.

15 . A second conviction of driving a CMV with a blood alcohol concentration (BAC) of 0.04 percent or more will result in a penalty of:

Losing your CDL for one year.
Losing your CDL for five years.
Losing your CDL for life.

16 . How much water must be present for a vehicle to hydroplane?

Usually several inches
A good amount, such as a large puddle
A small amount

17 . Wheel rims that have been welded should:

Be painted.
Be placed on tires in the rear of the vehicle.
Not be used.

18 . When taking a driving test:

You must supply the same type of vehicle for which you will require a CDL.
You may supply any type of vehicle, even if it is not the type of vehicle for which you will be using with the CDL.
The testing station will supply the vehicle.

19 . When performing a pre-trip inspection and looking into the fifth wheel gap, you should:

Make sure there is a gap between the kingpin and the locking jaws.
Make sure the locking jaws are fully closed around the kingpin.
Make sure the locking jaws are loose.

20 . ABS allows you to:

Drive faster.
Brake harder.
Stay in control when stopping.

21 . An Anti-Lock Braking System (ABS):

Is not available for most trucks.
Is not helpful in most situations.
Is required on newer trucks.

22 . If driving through flowing water or a large puddle, you should:

Increase your speed.
Gently apply the brakes.
Try to stop in the water.

23 . If confronted by an aggressive driver, you should:

Keep your vehicle in front of them.
Make eye contact with them
Ignore their gestures.

24 . Which of the following is not a type of retarder?

Exhaust
Engine
Air
Electric

25 . What is a Gross Vehicle Weight Rating (GVWR)?

The value stated by the manufacturer as the loaded weight of a single vehicle
The rating of a tire
The rating of a combination vehicle per axle

26 . When changing lanes:

You should not use your mirrors.
You should use your mirrors.
You should not use your turn signals.
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27 . A vehicle equipped with an Anti-Lock Braking System (ABS) can be identified by:

A sticker on the control panel.
A yellow lamp on the instrument panel.
The letters "ABS" on the brake pedal.
A metal plate on the inside of the driver’s side door.

28 . When driving, how can you maintain alertness?

Keep cool by using the air conditioner or opening a window.
Eat a lot of heavy foods.
Avoid stopping.

29 . What color is the low air pressure warning light?

Green
Orange
Red
Purple

30 . Cargo on flatbed trailers should be:

Tied down.
Glued down.
Left loose.
Pushed to one side.

31 . Improperly loaded cargo:

Can be safer than properly loaded cargo.
Can be a hazard.
Can improve fuel efficiency.

32 . Air brakes are:

An effective tool for stopping large vehicles.
Prohibited on large vehicles.
Only effective in poor weather.
A tool to improve fuel efficiency.

33 . A liver can process about ____ per hour.

One alcoholic drink
Two alcoholic drinks
Three alcoholic drinks

34 . If feeling tired while driving, it is best to:

Take a pep pill.
Get some rest.
Continue driving.

35 . About how many drinks does it take for a 200-pound person to reach a 0.02 percent blood alcohol concentration (BAC)?

One
Two
Three
Four

36 . If planning to change lanes, your mirrors should:

Not be checked.
Be checked as usual.
Be checked more often than usual.

37 . In icy conditions, a retarder should be:

Turned on.
Turned off.
Only used on the rear wheels.

38 . When traveling down a downgrade, the speed of a vehicle will likely:

Decrease.
Stay the same.
Increase.

39 . What is a drawback of retarders?

They may not be permitted everywhere.
They can help to slow a vehicle.
They cannot be turned off.

40 . How much water is needed on a road surface for a vehicle to hydroplane?

Usually several inches
A good amount, such as a large puddle
A small amount
No water

41 . Which of the following is not a warning sign of fatigue?

Frequent blinking
Rubbing your eyes
Missing exits or traffic signs
Staying within your lane

42 . When starting a vehicle with dual air brakes, pressure of ____ should be built up in the system before it is driven.

10 psi
25 psi
100 psi
200 psi

43 . 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.

44 . How many daily hours of sleep does an adult need to maintain alertness?

One to two hours
Three to four hours
Five to six hours
Eight to nine hours

45 . Which of the following is an indication of standing water on the roadway?

Tire splashes
Portions of the pavement that are dry
Leaves on the road

46 . When traveling with cargo, you must make sure the cargo is secure:

No more than two times.
Every 150 miles or three hours of driving.
Only after traveling up a hill.
Only after coming to a hard stop.

47 . The air storage tanks:

Hold only enough air for one braking cycle.
Hold enough air for brakes to be used several times if the compressor stops working.
Do not hold air unless there is an emergency.
Hold enough air for more than 1,000 braking cycles.

48 . Hanging meat:

Should never be transported by trailer.
Can be an unstable load.
Must be approved by the Environmental Protection Agency (EPA).

49 . While driving, you can:

Read, but not send, a text message.
Send, but not read, a text message.
Read and send text messages.
Not read or send text messages.

50 . If driving in extremely hot weather and the air pressure in your tires is too high, you should:

Continue driving.
Remove air from the tire.
Let the tires cool before continuing to drive.