1 . When driving in fog, you should:

Use your horn.
Use the low beam lights.
Use the high beam lights.
Use the heater.

2 . What is Gross Combination Weight?

The total weight of the powered unit, trailer, and cargo
The total weight of a single vehicle without its load
The maximum weight allowed by the manufacturer

3 . Emergency brakes:

Are not required on vehicles with air brakes.
Are required only on buses.
Are required on all vehicles.

4 . A bridge formula:

Permits less weight per axle for axles that are close together.
Permits more weight for trucks.
Is not a concern for drivers.

5 . If someone pulls out in front of you and you cannot stop to avoid a crash, you should:

Just hit the other vehicle since it will be the other driver's fault.
Swerve to avoid the other car.
Put your vehicle in reverse.
Accelerate.

6 . If you are driving in fog, you should not:

Turn on the four-way flashers.
Slow down.
Use your high beam lights.

7 . During a trip, which of the following does not need to be checked regularly?

Pressure gauges
Mirrors
Tires
Seat cushion

8 . If brakes overheat while going down a downhill grade, they may:

Get sticky.
Stop working.
Squeak.

9 . If the safety relief valve in the air brake system releases air:

The compressor needs more air.
There is something wrong with the brakes.
You may continue driving.

10 . When starting from a stop:

A vehicle should shift to the right.
A vehicle should be put into third gear.
A vehicle should not roll back.

11 . When driving in hot weather:

The air pressure in tires will decrease.
The engine oil can help to keep the engine cool.
Antifreeze is not important.

12 . Foundation brakes are used:

Only at the front wheels.
Only at the rear wheels.
Only at the driver’s side wheels.
At each wheel.

13 . 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.

14 . A low air pressure warning signal should activate:

When tank pressure falls below 120 psi.
When tank pressure falls below 60 psi.
When tank pressure falls below 10 psi.
When tank pressure falls below 5 psi.

15 . An Anti-Lock Braking System (ABS) will:

Shorten your stopping distance.
Not change the way you apply the brakes.
Allow you to drive faster.

16 . How can you avoid becoming drowsy on a trip?

Get about three hours of sleep beforehand.
Plan ahead, including stopping points.
Do not build exercise into your daily routine.
Schedule the trip at night.

17 . Alcohol begins to affect the body:

After only one drink.
After several drinks have been consumed.
At the legal limit.

18 . During a written exam:

Cell phones may be placed on airplane mode.
Cell phones must be turned off.
Cell phones may be left on, but must be set in a face down position.
Cell phones may be left on.

19 . What eliminates alcohol from the bloodstream?

Coffee
Exercise
Time

20 . Black ice is:

Usually thick – about half an inch or more of ice.
Usually thin.
Not a hazard when driving.
Not really ice.

21 . To make it easier to leave a parked position, you should park:

In a way that allows you to back up when exiting.
In a way that allows you to pull forward when exiting.
Only on the side of roadways, not in parking lots.

22 . What is road rage?

Operating a motor vehicle with the intent of doing harm to others
Operating a motor vehicle that is deemed unsafe
Operating a motor vehicle that has not been inspected

23 . On flat surfaces, wheel chocks:

Can be used to prevent a parked vehicle from moving.
Make it easier for a parked vehicle to roll.
Should only be used on the front driver's side tire.

24 . Being convicted of driving under the influence and losing your license while driving your personal vehicle:

Will not affect your CDL.
Will only affect your CDL if you have previous convictions.
Will result in the loss of your CDL.

25 . When it’s difficult to see, such as at dawn or dusk, a driver can increase their vehicle's visibility by:

Driving while using their lights.
Driving with their windows open.
Flashing their lights periodically.

26 . 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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27 . Blocking cargo:

Should never be done.
Should only be done in poor weather.
Prevents cargo from moving.

28 . Drivers are usually the least alert:

In the morning.
In the early evening.
Late at night.
In the afternoon.

29 . If trying to correct a drive-wheel braking skid, the driver should:

Accelerate.
Countersteer.
Engage the emergency brake.

30 . Heights posted at bridges:

Are always accurate.
Are legally binding.
Can be incorrect.

31 . Backing with a trailer is dangerous because:

It is difficult to see behind the vehicle.
Most trucks do not have the ability to move in reverse.
Cargo may fall out of the trailer.
There may be extra weight in the front of the trailer.

32 . A posted maximum speed limit:

Can be exceeded when passing another vehicle.
Should never be exceeded.
Is the minimum speed that should be driven.

33 . 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.

34 . During the straight line backing exercise, how many times are you permitted to exit the vehicle to check its position?

One time
Two times
Three times
Four times

35 . If caught driving a CMV with a blood alcohol content (BAC) of 0.02 percent, a driver will be:

Arrested.
Put out-of-service for 24 hours.
Given a warning.
Put on probation.

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

Is not available for vehicles with air brakes.
Is not helpful in most driving situations.
Can help you maintain control when braking.

37 . To avoid a crash:

Braking is always the best option.
Swerving may be more effective than braking.
Drivers should leave 100 yards of distance between their vehicle and the next.

38 . A learner permit is valid for:

Two weeks.
Three months.
Six months.
12 months.

39 . If a vehicle is equipped with an Anti-Lock Braking System (ABS), when the vehicle is started:

The brakes should lock up.
The ABS indicator light should turn on, then quickly shut off.
The steering wheel will not move until the air tanks are full.

40 . Brake pads should:

Be covered with grease.
Be covered with oil.
Be covered with brake fluid.
Not have any oil or grease on them.

41 . How soon after starting a trip must cargo securement be checked?

After 50 miles
After 100 miles
After 250 miles

42 . Truck tractors with air brakes built on or after March 1, 1997 must have:

An Anti-Lock Braking System (ABS).
Bluetooth.
GPS.
A rear back-up camera.

43 . Poor weight balance:

Improves handling.
Makes handling more difficult.
Increases a driver’s ability to steer.

44 . What does an Anti-Lock Braking System (ABS) do?

Allow the rear wheels to lock up
Allow all wheels to lock up
Help prevent wheel lockup
Alert other motorists when you are braking

45 . Blocking a load:

Is dangerous and should never be done.
Helps to stabilize the load.
Is only done with liquid cargo.

46 . Fuel records supporting IFTA quarterly fuel use tax returns must be kept by carriers for:

One year.
Two years.
Three years.
Four years.

47 . If you require a hazardous materials endorsement, you will be required to:

Submit your fingerprints.
Submit the password to your credit card.
Explain what types of materials you will be transporting.

48 . The safety belt should:

Not be adjustable.
Latch securely.
Be frayed.

49 . Which of the following is a time when the vehicle should be downshifted?

Before starting down a hill
Before starting up a hill
After exiting a curve

50 . Most heavy trucks with manual transmissions require ____ to change gears.

Single clutching
Double clutching
Triple clutching
Quadruple clutching