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Arizona
Arizona CDL Knowledge Test Class A 1
Answers
Q.1.
A fatigued driver:
Is usually extra alert.
Is usually more conscientious than a typical driver.
May be slower to make critical decisions than a typical driver.
Q.2.
A ____ allows a driver to gradually apply spring brakes.
Modulating control valve
Trailer air supply control
Relay valve
Q.3.
When driving, mirrors should be used:
Only when there may be a problem.
Infrequently.
Regularly.
Q.4.
When the spring brakes are on, you should never:
Turn on the lights.
Turn off the vehicle.
Push down the brake pedal.
Q.5.
Air storage tanks:
Are not allowed on a vehicle.
Hold compressed air for the brakes.
Should be drained of excess air after every trip.
Q.6.
The effects of alcohol are felt:
With the first drink.
Only after several drinks have been consumed.
At the legal limit.
Q.7.
What is brake lag?
The time required for the brakes to work after the brake pedal is pressed
The distance between the brake pedal and the floor
The amount of air pressure used to stop the vehicle
Q.8.
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.9.
Some water and compressor oil is usually found in the compressed air within an air brake system. The water and compressor oil:
Are necessary for the proper function of the system.
Should take up about 10 percent of the tank.
Should be removed regularly.
Q.10.
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.11.
Why are multi-speed axles and auxiliary transmissions used?
To make a vehicle operate more smoothly
To provide extra gears
To improve a vehicle's gas mileage
Q.12.
What is the minimum number of tie-downs required to secure a 10-foot piece of cargo?
One
Two
Three
Q.13.
Lights that indicate that anti-lock brakes are not working are:
Gray.
Blue.
Yellow.
Q.14.
To prevent your vehicle from rolling backward when beginning to move, you can:
Partly engage the clutch before taking your foot off the brake pedal.
Place the vehicle in second gear.
Use the parking brake when stopping.
Q.15.
Hanging meat as cargo is usually:
Easy to transport.
Dangerous, due to the possible scent.
Unstable.
Q.16.
An example of required emergency equipment is:
A spare electrical fuse.
A loud horn.
A battery-operated flashlight.
Q.17.
Overloading a vehicle with cargo:
Usually has no effect on the vehicle.
Can impact the vehicle's steering and brake control.
Can impact the vehicle's electrical system.
Q.18.
Which of the following is the best advice for driving in fog?
Try not to drive in fog.
Use your high beam headlights.
Turn off your lights.
Q.19.
If a load is 40 feet long, it should be secured by at least ____ tie-downs.
Two
Three
Four
Q.20.
When trying to put out an electrical fire, you should:
Use water.
Use a B:C extinguisher.
Use an X extinguisher.
Q.21.
Truck tractors with air brakes built on or after March 1, 1997 must have:
An Anti-Lock Braking System (ABS).
Bluetooth.
A GPS.
Q.22.
When starting from a complete stop, a vehicle should:
Jerk forward.
Roll backwards.
Not move backwards.
Q.23.
A driver who stops at a green light could be:
An impaired driver.
A driver who is color blind.
A person who does not know the rules of the road.
Q.24.
You may be an aggressive driver if you:
Expect delays on your drive.
Slow down and maintain a reasonable following distance.
Make hand gestures that could anger other drivers.
Q.25.
Backing with a trailer is dangerous because:
It is difficult for the driver to see behind the trailer.
There may be extra weight in the front of the vehicle.
Cargo may fall out of the trailer.
Trailers are not made to be driven in reverse.
Q.26.
Compared to talking on a cell phone while driving, texting while driving is:
Much safer.
Just as safe.
More dangerous.
Q.27.
If you plan to transport hazardous materials, you must pass which endorsement test?
Tank
Hazardous materials
Passengers
Q.28.
If the spring brakes are on, you should:
Not use the brake pedal.
Press the accelerator.
Move the steering wheel.
Q.29.
When backing with a trailer, turning toward the driver’s side is encouraged because:
The driver will have the best possible view.
Power lines should be on the passenger's side.
Other drivers can offer assistance on the passenger's side.
Q.30.
On slippery roads, you should:
Accelerate and slow down frequently.
Adjust your driving to match weather conditions.
Tailgate other vehicles.
Q.31.
Why should the steps of a pre-trip inspection be done in the same order each time?
Because you will be less likely to forget to check something
Because it will be faster
Because it is required by law
Q.32.
If other vehicles are having a difficult time getting around your truck on a road with two or more lanes, you should:
Speed up.
Drive on the shoulder.
Use the right lane.
Q.33.
Cargo with a high center of gravity:
Can make a vehicle likely to tip over.
Is encouraged in inclement weather.
Is required on some roads.
Q.34.
Of the following, which is not a recommended way to spot potential signs of trouble?
Watching the gauges
Using your senses
Checking critical items only at the beginning and end of a trip
Q.35.
Before a trip, you should make sure that:
The brake pedal sticks.
The gas pedal is loose.
The grooved pedal surface has not been smoothed out.
Q.36.
When carrying a sealed load, a driver:
Should unseal the load to ensure safety.
Should ensure the weight does not exceed weight limits.
Must go through the container before driving.
Q.37.
When parking, you should not use the parking brake if:
The brakes are very hot.
The brakes are very cold.
There is snow on the ground.
Q.38.
When passing another vehicle, you should:
Make eye contact with the other driver.
Assume the other driver doesn't see you.
Slow down.
Q.39.
If planning to change lanes, your mirrors should:
Not be checked.
Be checked as usual.
Be checked more often than usual.
Q.40.
When in heavy traffic, the safest driving speed is:
Slower than the speed being driven by surrounding traffic.
The same speed being driven by surrounding traffic.
Faster than the speed being driven by surrounding traffic.
Q.41.
To change lanes, you should:
Move quickly.
Move slowly and smoothly.
Hold down your horn.
Q.42.
You will often have to drive your vehicle under bridges and overpasses. If approaching such an opening, you should:
Assume the posted clearance height is accurate.
Assume the posted clearance height is inaccurate.
Measure the height of the opening before proceeding.
Q.43.
Before entering a curve, you should:
Not use the mirrors.
Speed up.
Downshift.
Q.44.
Heights posted at bridges:
Are always accurate.
Are legally binding.
Can be incorrect.
Q.45.
In order to receive a hazardous materials endorsement, a person must complete all of the following, except:
A HazMat knowledge test.
An FBI fingerprint check.
A CIA intelligence check.
Q.46.
After a tire has been changed, the driver should stop after a short distance to:
Check the tightness of the lug nuts.
Lower the tire's air pressure.
See if rocks have gotten into the tread.
Q.47.
In a leaf spring:
Leaves should be broken.
Leaves can be missing.
Leaves should not be broken.
Q.48.
How can you check for a leak in hydraulic brakes?
Pump the brake pedal three times, then hold down the pedal for five seconds. If the pedal moves, there may be a problem.
Push the brake pedal down as far as possible and release. If the brake pedal returns to its normal position, there may be a problem.
Push the brake pedal down as far as possible and release. If the brake squeaks, there may be a problem.
Q.49.
Anti-Lock Braking Systems (ABS):
Are not used on trucks.
Are only used on tucks carrying hazardous materials.
Allow drivers to stay in control when braking.
Q.50.
A driver may have:
Two licenses: one for automobiles and one for trucks.
Only one license.
A license for every state in which they drive.
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