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Mississippi
Mississippi CDL Knowledge Test Class B 2
Answers
Q.1.
A ramp's posted speed limit:
Is suitable for all vehicles.
Is suitable for some vehicles, but may be too fast for a large CMV.
Is just a suggestion and may be exceeded.
Q.2.
When starting the engine of a truck with a trailer, you can tell that your vehicle's ABS is not working if:
The yellow light on the left rear of the trailer stays on.
The red light on the right side of the trailer flashes three times.
All the rear lights flash and then turn off.
Q.3.
Parked delivery trucks may be hazardous because:
The trucks are often shiny.
People are often in a hurry when exiting such trucks and may not look for other vehicles.
Packages often fall out of the trucks and into the road.
Q.4.
What is removed when an air tank is drained?
Water and oil
Ammonia
Liquid cleaners
Q.5.
When stopped on the side of the road, the driver should:
Keep their side door open.
Turn on their emergency flashers.
Wave their arms.
Turn off all their lights.
Q.6.
The maximum amount of play that is safe on a 20-inch steering wheel is:
One-quarter of an inch.
Two inches.
10 inches.
Q.7.
If you’re not sure how to handle a fire, you should:
Use water.
Stay inside the vehicle.
Wait for the firefighters.
Keep the vehicle running.
Q.8.
When doing a pre-trip inspection, you should:
Always go through the steps in the same order.
Be as quick as possible.
Not worry about small mechanical issues.
Q.9.
Be sure you are always driving so your vehicle can stop:
Within 10 feet of your current position.
Within 1,000 feet of your current position.
Within your view of the road ahead.
Immediately.
Q.10.
During a walk-around inspection, ensure there are no cracks on the brake drums that are more than ____ of the width of the friction area.
One half
One quarter
One third
One tenth
Q.11.
Which of the following is not a potential effect of drinking alcohol then driving?
Improved reaction time
Driving too fast
Driving in the incorrect lane
Weaving while driving
Q.12.
If feeling tired while driving, it is best to:
Take a pep pill.
Get some rest.
Continue driving.
Q.13.
Rough acceleration:
Is recommended.
Can cause mechanical damage.
Is required on slippery surfaces.
Q.14.
Applicants seeking a hazardous materials endorsement must pass a threat assessment through which agency?
The TSA
The FBI
The CIA
Q.15.
One way to overcome the challenges of blind spots is to:
Drive faster than surrounding vehicles so no other drivers can pass you.
Drive in the left lane, allowing you to only worry about vehicles to your right.
Make frequent mirror checks and assess the positions of surrounding vehicles.
Avoid using your mirrors.
Q.16.
What kind of force do emergency brakes use?
Air pressure
Mechanical
Heavy
Q.17.
A dual air brake system:
Consists of two separate air brake systems that share a single set of controls.
Is a single air brake system with two different sets of controls.
Consists of one air brake system for the left side of the truck and one system for the right side of the truck, each with its own set of controls.
Q.18.
Which of the following may result in an applicant being denied a hazardous materials endorsement?
They are not a lawful permanent resident of the United States.
They have had a speeding conviction within the previous three years.
They did not correctly answer every question on the written hazardous materials endorsement test.
They did not pass the written hazardous materials endorsement test on the first attempt.
Q.19.
When taking the basic control skills test, drivers are:
Not permitted to stop and exit the vehicle to look at the vehicle’s position.
Encouraged not to exit the vehicle to look at the vehicle’s position.
Allowed to leave the vehicle, but only if the vehicle is placed in reverse.
Allowed to leave the vehicle, but only if the vehicle is placed in neutral and the parking brake is set.
Q.20.
ABS allows you to:
Drive faster.
Brake harder.
Stay in control when stopping.
Q.21.
During a basic vehicle control skills test, what is considered an encroachment?
The vehicle crossing over an exercise boundary line.
A driver executing a single pull-up.
A driver placing the vehicle in neutral and applying the parking brake.
The vehicle stalling while the driver shifts gears.
Q.22.
The center of gravity in a trailer should be:
As high as possible.
As low as possible.
At the rear of the trailer.
Q.23.
When transporting cargo, drivers must check the securement of the cargo every:
500 miles.
10 miles.
150 miles.
Q.24.
If you are turning left and there are two available left turn lanes, which lane should you choose?
The left lane
The right lane
Either lane
Trucks should not turn where there are two left turn lanes.
Q.25.
If the safety relief valve in the air brake system releases air:
The compressor needs more air.
The air pressure has become too high.
The brakes are fully operational.
Q.26.
What can happen if parking brakes are used in very wet weather with temperatures below freezing?
The brakes will squeak.
The brakes may freeze so the vehicle cannot move.
The brakes may suddenly release by themselves.
The brakes may become too smooth to be used.
Q.27.
When traveling down a hill:
Your speed will not change.
Your speed will decrease.
Your speed will increase.
You will slow to a stop.
Q.28.
Lights that indicate that anti-lock brakes are not working are:
Gray.
Blue.
Yellow.
Q.29.
You may be able to identify a distracted driver by if they are:
Staying within their lane.
Traveling at consistent speeds.
Preoccupied with using their cell phone.
Q.30.
Poisonous fumes can enter the cab due to:
A defective exhaust system.
The wrong type of fuel being used.
A lack of oil in the engine.
Under-inflated tires.
Q.31.
When you need to brake, how can you warn drivers behind you?
Tap on the brakes a couple of times.
Stick your arm out the window.
Swerve within your lane.
Change lanes.
Q.32.
The height of a vehicle’s center of gravity:
Usually has no impact on the handling the vehicle.
Plays a large role in a driver's ability to safely handle the vehicle.
Should not be a concern when loading the vehicle.
Should only be a concern if there are lots of hills on the planned route.
Q.33.
During the driving test, the examiner will be scoring you on:
How well-spoken you are.
How quickly you arrive to your destination.
General driving behavior.
Q.34.
If driving a school bus, your four-way flashers should:
Be activated before crossing railroad tracks.
Never be used.
Only be used after crossing railroad tracks.
Only be used near railroad tracks if a train is approaching.
Q.35.
Improperly loaded cargo:
Should not be a concern.
Can be dangerous.
Reduces stress on the trailer frame.
Is unsafe, but is unlikely to damage a vehicle.
Q.36.
A commercial motor vehicle driver:
May use any cell phone while driving.
May only use a hands-free cell phone while driving, if permitted.
May only use a cell phone while driving on rural roads.
Q.37.
If there is ice on the front of your side mirror:
You should exit the roadway.
You can expect ice to be on the roadway.
There will not be ice on the roadway.
Q.38.
Hydroplaning occurs when:
Tires lose traction with the surface of the road.
Tires have increased traction with the surface of the road.
Front tires have more traction that rear tires.
Front tires have less traction than rear tires.
Q.39.
If a roadway is covered by fog, it is best for you to:
Drive faster than usual.
Use your high beam headlights.
Turn off your headlights.
Avoid driving.
Q.40.
When starting an engine, oil pressure should come up to a normal level:
Within seconds.
Within five minutes.
After about three minutes.
Q.41.
Stopping distance can be affected by:
Speed.
Temperature.
Time of day.
Traffic.
Q.42.
When only the tractor is equipped with an Anti-Lock Braking System (ABS):
There is a decreased risk of jackknifing.
There is an increased risk of jackknifing.
The brakes will not work as effectively as they would without ABS.
The brakes will become more sensitive.
Q.43.
Which of the following is not a cause of hydraulic brake failure?
Loss of hydraulic pressure
Brake fade on long hills
Downshifting
Q.44.
If a vehicle is power steering-equipped, the hoses should be:
Checked for leaks.
Securely connected to the battery.
Carrying fuel.
Q.45.
Tie-downs are used to:
Prevent cargo from shifting.
Prevent skidding.
Keep doors closed while driving.
Q.46.
During the vehicle inspection test, you will be asked to:
Change a tire.
Explain to the examiner what you are inspecting and why.
Estimate the weight of a load on a trailer.
Q.47.
A tread depth of ____ should be in every major groove of a front tire.
1/32 of an inch
2/32 of an inch
4/32 of an inch
Q.48.
What does the vehicle inspection report do?
Inform the motor carrier about problems that may need fixing
Ensure that the vehicle is inspected regularly
Keep people accountable for inspecting the vehicle
Q.49.
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.50.
If a vehicle has a vehicle inspection report, the driver:
Should not look at the report and instead try to find any issues themselves.
Should take the vehicle to a mechanic.
Should review the report.
Should not conduct a pre-trip inspection and rely only on the report.
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