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Driving Test
New Mexico
New Mexico CDL Knowledge Test Class B 1
Answers
Q.1.
During the driving test, when asked to make a lane change:
You should not be concerned with other motorists.
You should use your turn signal and change lanes when safe.
You should make the lane change as quickly as possible, even if that means cutting off another driver.
Q.2.
During a pre-trip inspection, belts should be:
Loosened.
Checked for tightness.
Scrubbed clean.
Left alone and not inspected.
Q.3.
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.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.
One way to prevent hydroplaning on wet road surfaces is to:
Ensure that your tires have good tread depth.
Under-inflate your tires.
Drive faster than usual.
Q.6.
Rims with welding repairs:
Are not safe to use.
Are acceptable to be used on tires in the rear of the vehicle.
Are acceptable to be used if carrying a light load.
Q.7.
Which of the following is not a sign of fatigue?
Difficulty focusing, with frequent blinking
Yawning repeatedly or rubbing eyes
Staying in your lane
Q.8.
If planning to change lanes, your mirrors should:
Not be checked.
Be checked as usual.
Be checked more often than usual.
Q.9.
When traction is poor, a driver should accelerate especially slowly:
Because it is always good to accelerate slowly.
To keep from losing control of the vehicle.
To keep from accelerating faster than the vehicle ahead.
Q.10.
The center of gravity in a trailer should be:
As high as possible.
As low as possible.
At the rear of the trailer.
Q.11.
When approaching a construction worker who is near the road, you should:
Increase your speed.
Decrease your speed.
Move to the shoulder.
Q.12.
Hanging meat as cargo is:
Illegal to transport in most states.
Always easy to transport.
Usually unstable.
Q.13.
To avoid a hazard, you:
Should always come to a complete stop.
May need to swerve your vehicle out of the way.
Should change lanes without looking.
Q.14.
When starting an engine as part of a pre-trip inspection, the driver should:
Listen for unusual noises.
Place the engine in first gear.
Turn on the heater.
Q.15.
Which of the following is acceptable if found during a pre-trip inspection?
Mismatched tire sizes
Tread of 3/32 of an inch in the grooves of the front tires
Tires manufactured by different makers
Q.16.
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
Q.17.
When should mirrors be adjusted?
Before driving
While driving
After driving
Q.18.
Hydroplaning:
Only occurs at extremely high speeds.
Can occur at speeds as low as 30 mph.
Happens most frequently when tire pressure is too high.
Q.19.
Air tank drains:
Should not be used in cold weather.
Are helpful to remove water and oil from the air tanks.
Are used to move air to the brakes.
Q.20.
When loading a trailer, weight should be:
Placed as high as possible.
Placed as low as possible.
Placed as far to the left as possible.
Q.21.
What is often found in compressed air?
Water
Cardboard
Brake fluid
Q.22.
If a vehicle is accompanied by a vehicle inspection report:
The driver should first inspect the vehicle, then compare their notes with the report.
The driver should first look at the report when completing an inspection.
The driver should not conduct a pre-trip inspection and should rely only on the report.
Q.23.
Exhaust system parts should be:
Leaking.
Rubbing against other parts of the vehicle.
Secured tightly.
Q.24.
If you notice anything affecting the safety or mechanical functioning of your CMV while driving, you should:
Stay quiet and see if the problem goes away.
Make a written report that includes your concerns.
Try to fix it yourself.
Q.25.
To ensure that you do not slow down traffic when driving a large truck, you should:
Switch gears while driving uphill.
Try to pass another vehicle while driving uphill.
Stay in the right lane whenever possible.
Q.26.
What does an air compressor do in an air brake system?
It pumps air into the air storage tanks.
It fills the tires.
It moves air to the back of the truck.
Q.27.
Air brakes use ____ to function.
Compressed air
Liquid nitrogen
Carbon dioxide
Q.28.
When checking your tires as part of the pre-trip inspection, you should look at the:
Tire pressure.
Tire color.
Tire manufacturer.
Q.29.
When driving, mirrors should be used:
Only when there may be a problem.
Infrequently.
Regularly.
Q.30.
When starting your vehicle, the coolant temperature should:
Not change.
Increase gradually.
Quickly jump from low to high.
Q.31.
Before driving a vehicle with air brakes, you should ensure that the ____ come on automatically when air pressure falls below 45 psi.
Spring brakes
Parking brakes
Air brakes
Q.32.
If planning to stop on the road to unload cargo, you should:
Stop suddenly, since you are already on the road.
Warn other drivers by tapping your brakes.
Wave your arm out the window to get the attention of other drivers.
Q.33.
Distracted driving:
Is caused only by physical distractions.
Will be increased by pre-programming radio stations.
Can be prevented by avoiding conversation with others.
Q.34.
Dual tires should:
Always come into contact with one another.
Come into contact with one another fairly regularly.
Not come into contact with one another.
Q.35.
When checking your mirrors:
The passenger side mirror should not be used.
The driver's side mirror should not be used.
Mirrors on both sides of the vehicle should be used.
Q.36.
Do not base your decision to shift gears on:
The speed of your engine (rpm).
The speed of the road (mph).
The actions of the vehicle next to you.
Q.37.
When stopping a manual transmission vehicle, you should:
Push the clutch in when the engine is close to idle.
Push the clutch out when the engine is close to idle.
Shift into neutral when the engine is close to idle.
Q.38.
Alcohol can be removed from your system:
By exercising.
By drinking coffee.
By waiting.
Q.39.
How long should it take for oil pressure to reach a normal level when starting a vehicle?
A few seconds
About a minute
About four minutes
Q.40.
Using the brakes creates heat. If too much heat is produced:
The brakes may not work.
The brakes may squeak more than usual.
The brakes will brake unevenly.
Q.41.
Which of the following is not a sign of tire failure?
A loud sound
Vibration
Smoother steering
Q.42.
If you are feeling tired and yawning a lot while you are driving, you should:
Pull over and take a nap.
Get some coffee.
Drive faster.
Q.43.
Containerized loads are used:
When the cargo is too large to fit on a truck.
When the cargo has been or will be transported by a train.
When the cargo is a liquid.
Q.44.
Texting while operating a CMV is:
Illegal.
Acceptable on rural roads.
Acceptable for drivers contacting their employers.
Q.45.
Stopping distance can be affected by:
Driving speed.
Temperature.
Time of day.
Q.46.
Before beginning to drive downhill, you should:
Take your vehicle out of gear.
Shift into a lower gear.
Move into the left lane.
Q.47.
Watching the road ahead of you:
Allows you time to make a plan to avoid an upcoming hazard.
Is not encouraged as it distracts you from driving.
Is only important when traveling in congested traffic.
Q.48.
Rust around wheel nuts may mean:
It recently rained.
The nuts are loose.
The tire is not clean.
Q.49.
Once the air tanks are at an air pressure level of 125 psi, the air compressor governor will:
Stop the compressor from pumping air.
Release air from the tanks.
Begin pumping air into the tanks.
Q.50.
Which of the following is not a cause of hydraulic brake failure?
Loss of hydraulic pressure
Brake fade on long hills
Downshifting
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