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Texas CDL Knowledge Test Class A 2
Answers
Q.1.
What is another name for front-end header boards?
Headache racks
Cargo stoppers
Head braces
Ballasts
Q.2.
When driving through a work zone, you should:
Slow down.
Speed up.
Use a cell phone.
Steer with one hand to keep the other hand free.
Q.3.
If a person commits two serious traffic violations within a three-year period, they will:
Lose their CDL for at least one week.
Lose their CDL for at least 30 days.
Lose their CDL for at least 60 days.
Lose their CDL for at least two years.
Q.4.
When an engine is started:
The brakes should be locked up.
Warning lights should come on and then quickly turn off.
The coolant temperature will decrease.
The hood must be open.
Q.5.
When operating a vehicle with a dual brake system, a driver should:
Let the vehicle warm up before driving to ensure that fuel reaches the engine.
Wait to begin driving until the air compressor builds up a minimum pressure of 100 psi in both the primary and secondary systems.
Begin driving just after the vehicle starts.
Pump the pedal about 20 times to build pressure, then begin driving.
Q.6.
How does doubling your speed from 20 mph to 40 mph affect your vehicle's braking distance?
It stays about the same.
It increases slightly.
It doubles.
It quadruples.
Q.7.
If a tire fails, the driver should:
Keep one hand on the steering wheel and use their other hand to wave to other drivers.
Stomp on the brakes.
Not use the brakes.
Accelerate.
Q.8.
When driving with a load, the driver should:
Stop and check on the cargo within the first 50 miles of the trip.
Ask other drivers about the condition of their load.
Use the side mirrors only to check on the cargo.
Not check on the cargo if it was secured properly before starting the trip.
Q.9.
When nearing a construction worker who is close to the road, you should:
Increase your speed.
Decrease your speed.
Not drive in any lane.
Wait until the construction is complete before proceeding.
Q.10.
During exercises that are not the straight line backing exercise, you may exit your vehicle to check its position no more than:
One time.
Two times.
Three times.
Four times.
Q.11.
When passing another vehicle, you should:
Make eye contact with the other driver.
Assume the other driver doesn’t see you.
Honk your horn.
Wave to other drivers.
Q.12.
When checking the air and electrical lines during a vehicle inspection, all of the following should be true, except:
The air hoses are making a hissing noise.
The air hoses and electrical lines are not cut.
The air lines are not pinched.
The air lines are not dragging against tractor parts.
Q.13.
If a truck's Anti-Lock Braking System (ABS) is not working:
The truck will not have any brakes.
The truck should be driven only at slow speeds.
The truck will still have brakes.
The truck will lack brakes on its left side.
Q.14.
What can change the height of a vehicle?
Color
Length
Weight
Number of windows
Q.15.
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.16.
If you are being tailgated, you should:
Drive on the shoulder.
Pull off the roadway.
Drive faster.
Allow the vehicle to pass.
Q.17.
What is a wig wag?
A type of warning system
A tube used to move air from the compressor to the tanks
A noise made by air brakes when used
A part within the braking unit that allows air to move freely
Q.18.
When exiting your vehicle, you must maintain ____ with the vehicle at all times.
One point of contact
Four points of contact
Three points of contact
Two points of contact
Q.19.
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
Q.20.
During a static leakage test, the maximum leakage rate for a double combination vehicle is:
3 psi in one minute.
6 psi in one minute.
8 psi in one minute.
4 psi in one minute.
Q.21.
Antifreeze helps to keep an engine functioning properly:
But only in cold weather.
But only in hot weather.
Regardless of the weather.
While minimizing the vehicle's fuel use.
Q.22.
What happens if the air pressure in a system's air tanks falls below 60 psi?
The front lights will flash.
A warning light will come on.
The vehicle will not shift out of gear.
The vehicle should stop.
Q.23.
When taking the on-road test, you will be evaluated on regular traffic checks. You should not:
Scan the road for pedestrians.
Check traffic regularly.
Avoid checking your mirrors near intersections.
Check your mirrors regularly.
Q.24.
When starting the engine as part of the pre-trip inspection, the driver should:
Listen for unusual noises.
Rev the engine.
Turn up the radio.
Turn on the heater.
Q.25.
While driving, if you notice anything affecting safety or mechanics, you should:
Stay quiet and see if the problem goes away.
Make a written report that includes your concerns.
Try to fix the issue yourself.
Not use that part of the vehicle and hope others don't notice the problem.
Q.26.
During an applied leakage test, the maximum leakage rate for a single vehicle with air brakes is:
3 psi in one minute.
6 psi in one minute.
8 psi in one minute.
4 psi in one minute.
Q.27.
If you experience a loss of hydraulic pressure, you should do all of the following, except:
Downshift.
Pump the brakes.
Accelerate.
Use the parking brake.
Q.28.
An open automobile window in cold weather may indicate that the driver is:
Driving impaired.
Inappropriately dressed.
Using the heat inside their vehicle.
Enjoying the fresh air.
Q.29.
When it is difficult for others to see your vehicle, such as at dawn or dusk, you can help other drivers by:
Keeping your lights off.
Turning your lights on.
Driving on the shoulder.
Waving an arm out the window.
Q.30.
Which of the following is not an activity that causes a distraction?
Adjusting the radio
Adjusting the CD player
Eating
Checking your mirrors
Q.31.
Most CDL holders have ____ licenses.
Excepted
Exempted
Non-excepted
Non-exempted
Q.32.
A truck may need to be under the legal maximum weight limit when being driven:
On a flat road.
On a mountainous road.
In heavy traffic.
At night.
Q.33.
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.34.
Multi-speed axles and auxiliary transmissions are used:
To make a vehicle run more smoothly.
To provide extra gears.
To get improved gas mileage.
To make a vehicle less noisy.
Q.35.
Which of the following does not require a CDL?
Operating a truck with a GVWR of 26,001 pounds or more
Operating a vehicle designed to transport 16 or more passengers, including the driver
Any size vehicle which requires hazardous materials placards
Any size vehicle with advertising
Q.36.
During the vehicle inspection portion of the skills test, an applicant will be required to:
Explain to the examiner what should be checked and why.
Let the examiner check the vehicle.
Talk to a mechanic to prove their knowledge.
Take apart the front brake.
Q.37.
Sometimes, when checking the automatic transmission fluid level:
Your vehicle should be parked uphill.
Your vehicle should be parked downhill.
Your vehicle should be washed.
Your vehicle may have to be left running.
Q.38.
When checking your vehicle's lights before driving:
The vehicle should be running and in gear.
The engine should be turned off.
The check can be done from inside the vehicle.
The check can be done by looking at a reflection from a shiny surface.
Q.39.
Where is the safety relief valve usually located?
Near the rear brake
Near the front brake
In an air tank
On the dashboard
Q.40.
An air brake-equipped vehicle traveling at a speed of 55 mph under ideal driving conditions will need approximately ____ to come to a complete stop.
100 feet
250 feet
300 feet
450 feet
Q.41.
A cardboard box on the roadway:
Is not a cause for concern.
Is usually empty.
May contain a heavy object that could damage your vehicle.
Should be avoided by driving off the roadway.
Q.42.
Truck tractors with air brakes that were built on or after March 1, 1997 are equipped with:
An extra set of brakes.
Voice-activated brakes.
Cruise control.
Anti-Lock Braking Systems (ABS).
Q.43.
Rims with welding repairs:
Are unsafe.
Are acceptable on tires in the rear of the vehicle.
Are acceptable only when carrying a heavy load.
Are acceptable in combination vehicles.
Q.44.
When traction is poor, a driver should accelerate slowly:
Because it is best to always accelerate very slowly.
So they do not lose control of their vehicle.
So the driver does not accelerate faster than the vehicle ahead.
To be the last vehicle through an intersection.
Q.45.
On a truck with air brakes, the braking system’s air compressor:
Pumps air into the air storage tanks.
Fills the tires.
Moves air to the back of the truck.
Cleans the brakes.
Q.46.
How many air storage tanks are used in an air brake system?
Two tanks
Four tanks
Six tanks
The number varies.
Q.47.
When traveling down a downgrade, the speed of a vehicle will likely:
Decrease.
Not change.
Increase.
Match the speed of traffic.
Q.48.
Which of the following will not result in losing your CDL for at least one year for a first offense?
Driving a CMV with a minimum blood alcohol concentration (BAC) of 0.04 percent
Driving a CMV while under the influence of alcohol
Refusing to undergo blood alcohol testing
Committing a misdemeanor involving the use of a CMV
Q.49.
If another driver is following you too closely, you should do all of the following, except:
Avoid quick changes.
Increase the distance between you and the vehicle in front of you.
Speed up.
Avoid relying on tricks to help others pass.
Q.50.
If the low pressure warning light comes on while you are driving:
Braking will only occur if there is enough air in the tanks.
You can brake 14 times before the air in the system runs out.
You should continue to drive normally and check the brake system when it is convenient.
You should continue driving, but turn the emergency flashers on to warn other motorists.
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