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Driving Test
Maryland
Maryland CDL Knowledge Test Class B 2
Answers
Q.1.
When driving, mirrors should be used:
Only when there may be a problem.
Infrequently.
Regularly.
Q.2.
When driving a vehicle equipped with an Anti-Lock Braking System (ABS), you should:
Stop harder than you would in a vehicle not equipped with ABS.
Use extra braking force to ensure the ABS kicks in.
Brake as you would in a vehicle not equipped with ABS.
Brake with less force than you would in a vehicle not equipped with ABS.
Q.3.
What should a driver do if their vehicle hydroplanes?
Accelerate.
Use the brakes.
Release the accelerator and push in the clutch.
Take the vehicle out of gear.
Q.4.
Compared to talking on a cell phone while driving, texting while driving is:
Much safer.
Just as safe.
More dangerous.
Q.5.
What is a drawback of retarders?
They may not be permitted everywhere.
They can help to slow a vehicle.
They cannot be turned off.
Q.6.
A steering wheel should be:
Held with one hand while the other hand rests.
Held with both hands to ensure an adequate grip.
Released if the vehicle is approaching a bump.
Q.7.
If a load is 40 feet long, it must be secured by a minimum of ____ tie-downs.
Two
Three
Four
Five
Q.8.
Poisonous fumes can enter a cab due to:
A defective exhaust system.
Using the wrong type of fuel.
A lack of oil in the engine.
Q.9.
An open automobile window in cold weather may indicate that the driver is:
Enjoying the fresh air.
Driving impaired.
Inappropriately dressed.
Using the heat inside their vehicle.
Q.10.
If your license to operate a personal vehicle is revoked or suspended:
You can get a hardship license to operate a CMV.
You cannot get a hardship license to operate a CMV.
Your CDL will not be affected.
Q.11.
When approaching a downgrade, how can you reduce the amount of braking that will be needed?
Switch to a higher gear.
Switch to a lower gear.
Switch to neutral.
Turn off the engine.
Q.12.
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.13.
Failing to drain air tanks could result in:
Water accumulations freezing and causing brake failure.
Squishy brakes.
Too much air collecting in the tanks.
Q.14.
Interstate carriers must have what information affixed to the commercial motor vehicles in their fleet?
Trade name
Width of the truck
Length of the truck
Q.15.
If a vehicle has air brakes, the air compressor drive belt should be checked before each drive. In what condition should the belt be?
Loose
Tight
Cracked
Bumpy
Q.16.
Before entering a curve, you should:
Upshift.
Speed up.
Drive on the shoulder.
Downshift.
Q.17.
When entering a foggy area, you should:
Stop on the side of the roadway.
Pass other vehicles.
Slow down.
Use your high beam headlights.
Q.18.
Hydroplaning happens most often when:
A vehicle is traveling faster than 60 mph.
Tire pressure is too low.
Tire tread is too deep.
Q.19.
To make your vehicle more visible during the day, you should:
Use your low beam headlights.
Use your high beam headlights.
Use your clearance lights.
Q.20.
When driving at highway speeds, you should watch the road about ____ ahead of your vehicle.
One block
100 yards
A quarter mile
Q.21.
To make it as safe as possible to leave a stop, you should park:
So that you must back up to leave your parking space.
So that you can pull forward to leave your parking space.
On the side of a roadway, not in a parking lot.
By backing into a parking space.
Q.22.
An air compressor governor controls:
When the air compressor pumps air into the air storage tanks.
How fast air is pumped into the air storage tanks.
The temperature of the air pumped into the air storage tanks.
Q.23.
Traction is important in:
Safe braking.
Properly using turn signals.
Operating the horn.
Q.24.
Alcohol usually:
Improves reaction time.
Impairs depth perception.
Improves night vision.
Q.25.
If taking the driving test and the route does not include a railroad crossing, you:
Will not have to do anything related to a crossing.
May have to explain how you would cross railroad tracks.
Will have to take the test again on a route that does include a railroad crossing.
Q.26.
If asked by a law enforcement officer to take a test to determine your blood alcohol concentration (BAC):
You can refuse to take the test without a penalty.
You can refuse taking the test but will be required to pay a $50 fine.
You will lose your CDL if you refuse to take the test.
Q.27.
Lights that indicate that anti-lock brakes are not working are:
Gray.
Blue.
Yellow.
Q.28.
A modulating control valve can control the:
Spring brakes.
Landing gear.
Air brakes.
Anti-lock braking system (ABS).
Q.29.
During a trip, gauges are:
Often misleading.
The only way a driver can learn of potential trouble with the vehicle.
A way to learn of potential trouble with the vehicle.
Q.30.
During the driving test, when encountering a railroad crossing, you should:
Pass another vehicle on the tracks if the other vehicle is going too slow.
Get out of the vehicle to check for a train.
Not change gears while your vehicle is on the tracks.
Q.31.
During an applied leakage test, the maximum leakage rate for a triple combination vehicle is:
10 psi in a minute.
8 psi in a minute.
6 psi in a minute.
4 psi in a minute.
Q.32.
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.
Q.33.
In very hot weather, tires should be checked regularly because:
They may melt.
Air pressure may increase with the temperature.
The tread wears down more quickly than in cooler weather.
Q.34.
Exhaust system parts should:
Rub against the fuel system.
Rub against tires.
Not leak.
Q.35.
You should not use your mirrors:
When changing lanes.
When making a turn.
To determine how fast you are traveling.
Q.36.
The brake pedal is part of which braking system?
The service brake system
The parking brake system
The emergency brake system
The auxiliary brake system
Q.37.
What happens when a vehicle hydroplanes?
The tires lose contact with the road.
The tires have extra traction.
The vehicle is easier to control.
The vehicle becomes heavier.
Q.38.
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.
Q.39.
For safety purposes, when should you turn off a retarder?
When the roadways are slippery
When you have a passenger
When you are carrying a heavy load
Q.40.
Air tank drains should:
Not be used by the driver.
Only be used when it is wet outside.
Be used to drain the tanks completely.
Q.41.
An Anti-Lock Braking System (ABS) will:
Shorten your stopping distance.
Not change the way you apply the brakes.
Allow you to drive faster.
Q.42.
Rough acceleration:
Is recommended.
Can cause mechanical damage.
Is required on slippery surfaces.
Q.43.
The most important reason to inspect your vehicle before a trip is:
To ensure safety.
To maximize gas mileage.
To wake up before the drive.
To fill up time.
Q.44.
Brakes may get out of adjustment:
If they are too hot.
In colder weather.
If they are used.
If they get wet.
Q.45.
When passing another vehicle, you should:
Make eye contact with the driver.
Assume the driver doesn’t see you.
Honk your horn.
Wait for the other driver to signal that it is safe to do so.
Q.46.
Rough acceleration:
Is a good way to stay awake on long trips.
Is distracting.
Can cause mechanical damage.
Should be used to prevent rust from forming.
Q.47.
If involved in an accident, which of the following is not recommended?
Trying to move your vehicle to the side of the road
Caring for the injured
Driving away from the scene
Q.48.
If carrying a heavy load that is slowing you down, you should:
Drive in the left lane.
Drive in the right lane.
Drive on the shoulder.
Keep the vehicle in second gear.
Q.49.
Drivers may use ____ red reflective warning triangles when their vehicle is stopped on the side of the road.
Two
Three
Five
Seven
Q.50.
Brake fade is a result of:
Exposure to sunlight.
Exposure to moisture.
Excessive use.
Not using the brakes enough.
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