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Maine
Maine CDL Knowledge Test Class B 2
Answers
Q.1.
Regrooved tires are:
Allowed only on the front of a bus.
Allowed only on the rear of a bus.
Not allowed anywhere on a bus.
Q.2.
Black ice is:
Usually thick.
Usually thin.
Not a hazard when driving.
Q.3.
When approaching a vehicle for a pre-trip inspection, a driver should look under the vehicle:
To see if the vehicle is on an incline.
To see if there are any fresh fluids on the ground.
To see if the vehicle is in a parking spot.
Q.4.
You should ____ if the low pressure warning signal activates while you are driving.
Stop where you are and park
Exit the roadway as soon as safely possible
Continue driving normally
Q.5.
When loading cargo, it is important to:
Stack items as high as possible.
Know the weight capacity rating of the suspension system.
Place light items underneath heavier items.
Q.6.
A thin layer of ice that forms on road surfaces is called:
White ice.
Black ice.
Blue ice.
Q.7.
When an S-cam turns inside a brake drum, the S-cam:
Presses the brake shoes against the inside of the brake drum.
Presses the brake shoes against the brake linings.
Presses the brake linings against the wheel axles.
Q.8.
If you are turning left at an intersection where there are two available turn lanes:
It is best to use the right lane.
It doesn’t matter which lane you use.
It is best to use the left lane.
Q.9.
Dry bulk tanks:
Usually have a low center of gravity.
Usually have a high center of gravity.
Are usually not allowed to cross railroad tracks.
Q.10.
An alcohol evaporator in an air brake system:
Makes the brakes work without squeaking.
Prevents ice from forming in the braking system.
Lubricates parts of the braking system.
Q.11.
If a vehicle is carrying hazardous cargo, placards must be placed:
Only on the front of the vehicle.
On the front, rear, and sides of the vehicle.
Only on the driver’s side of the vehicle.
Q.12.
During a basic vehicle controls skills test exercise, your vehicle's final position should be:
In the general area that was described by the examiner.
In the exact final position described by the examiner.
Within three feet of the final position described by the examiner.
Q.13.
A driver should ensure that:
The truck is overloaded.
The truck is properly loaded.
The cargo is mostly in the front of the trailer.
Q.14.
How many daily hours of sleep does an adult need to maintain alertness?
Six to seven
Seven to eight
Eight to nine
Q.15.
Broken suspension parts:
Should be repaired immediately.
Should be repaired, but not immediately.
Cannot be identified.
Q.16.
Emergency equipment in a vehicle is:
Only required for vehicles that are transporting hazardous materials.
Only required during interstate travel.
Required.
Q.17.
If an aggressive driver is involved in a crash down the road, you should:
Pull over and yell at them.
Stop after the crash scene and report the other driver’s behavior to police.
Block the driver in with your vehicle.
Q.18.
You are especially likely to encounter strong winds when:
Coming out of tunnels.
Going into tunnels.
Driving on shoulders.
Q.19.
A truck should be parked:
So that it must be backed up to leave the space.
So that it can be pulled forward to leave the space.
On the grass.
Q.20.
If you are confronted with an aggressive driver, you should:
Make eye contact.
Try to stay in their way.
Ignore any hand gestures.
Q.21.
When traveling down a steep downgrade:
The air brakes should be used.
The vehicle should be placed in a low gear and the driver should use engine braking.
The driver should continually downshift instead of using the brakes.
Q.22.
When should you slow for a curve?
Before entering the curve
While in the curve
After the curve
Q.23.
In a dual air brake system, if one air system is very low on pressure:
None of the brakes will work at all.
Either the front or rear brakes will not be fully operable.
There is usually no noticeable effect.
Q.24.
On a slippery surface, stopping distance:
Is longer than on a regular driving surface.
Is not as long as on a regular driving surface.
Is about the same as on a regular driving surface.
Q.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.
Q.26.
A pre-trip inspection:
Should be done in the same way every time.
Should be done differently every time.
Does not always need to include all items of concern.
Q.27.
If there is a fire in your vehicle, you should not:
Park in an area away from buildings, trees, brush, and other vehicles.
Pull into a service station.
Notify emergency services of your problem and your location.
Q.28.
A vehicle that is smaller than your vehicle:
Will usually be able to stop faster than your vehicle.
Will usually take more time to stop than your vehicle.
Will take about the same amount of time to stop as your vehicle.
Q.29.
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.
Q.30.
When alley docking, you should first:
Position your vehicle directly in front of the alley.
Back up directly in front of the alley.
Stop parallel to the outer boundary of the alley.
Q.31.
When asked to make a lane change during the driving test, you should:
Make the change as soon as the examiner asks, without looking.
Use your turn signal and change lanes when safe.
Make the lane change as quickly as possible, even if that means cutting off another driver.
Q.32.
If you doubt that you have enough space to safely drive under a bridge or sign, you should:
Drive faster.
Drive more slowly.
Drive on the shoulder.
Q.33.
A ____ allows a driver to gradually apply spring brakes.
Modulating control valve
Trailer air supply control
Relay valve
Q.34.
In cool weather, as the temperature begins to rise and ice begins to melt:
It is usually safe to drive.
The road will become even more slippery.
Traction will increase.
Q.35.
Hydroplaning usually occurs:
When tires are properly inflated.
When driving at speeds slower than 15 mph.
In areas where water collects on the road.
Q.36.
Eating while driving:
Is a good way to maximize your time.
Is encouraged during long trips.
Is a distraction to the driver.
Q.37.
The center of gravity in a trailer should be:
As high as possible.
As low as possible.
At the rear of the trailer.
Q.38.
If an aggressive driver is involved in a crash on the road ahead, you should:
Stop and confront the driver.
Stop a safe distance from the crash scene, wait for police to arrive, and tell them of the driver's behavior.
Block the driver in with your vehicle.
Q.39.
When driving a 50-foot truck at 50 mph, your minimum following distance should be:
Four seconds.
Five seconds.
Six seconds.
Q.40.
____ is an example of required emergency equipment.
A spare electrical fuse
A loud horn
A battery-operated flashlight
Q.41.
Lights that indicate that anti-lock brakes are not working are:
Gray.
Blue.
Yellow.
Q.42.
Skids caused by over-acceleration can usually be resolved by:
Removing your foot from the accelerator.
Braking.
Swerving to the right.
Q.43.
In a vehicle with dual air brakes, a leak in one system ____ the second system.
Will always affect
May not affect
Is caused by
Q.44.
Cargo inside a trailer:
Does not need to be secured.
Should be stacked no more than three feet high.
Should be secured to prevent movement.
Q.45.
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.
Q.46.
A danger of swerving to avoid a hazard while driving a large truck is that:
The truck may miss the object.
The truck may flip over.
The truck may stay in the same lane.
Q.47.
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.
Q.48.
When parked on a flat surface, you should:
Use wheel chocks to prevent your vehicle from moving.
Not use wheel chocks.
Use wheel chocks, but only if you have applied the parking brake.
Q.49.
While operating on a downgrade, you should brake until you reach a speed that is:
5 mph below your safe speed.
10 mph below your safe speed.
15 mph below your safe speed.
Q.50.
Rust around wheel nuts may mean:
It has rained recently.
The nuts could be loose.
The tires should be replaced.
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