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Driving Test
Virginia
Virginia CDL Knowledge Test Class A 1
Answers
Q.1.
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.2.
When a vehicle is started, the coolant temperature should:
Decrease.
Rise slowly.
Jump quickly.
Q.3.
Exhaust system parts should be:
Leaking.
Rubbing against other parts of the vehicle.
Secured tightly.
Q.4.
If one-fourth of the leaves in a leaf spring are missing when a vehicle is inspected:
The vehicle’s driver will be allowed to drive, but only at reduced speeds.
The vehicle will be put out-of-service until it is fixed.
The vehicle will be fine to drive since most of the spring is in place.
Q.5.
When using a fire extinguisher to put out a fire, you should:
Stay as far away as possible from the flames.
Aim at the flames.
Use any extinguisher on every type of fire.
Q.6.
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.7.
Hanging meat:
Should never be transported by trailer.
Can be an unstable load.
Must be approved by the Environmental Protection Agency (EPA).
Q.8.
While operating on a downgrade, you should brake until you reach a speed that is:
5 mph below your safe speed.
10 mph below your safe speed.
15 mph below your safe speed.
Q.9.
What is the Gross Vehicle Weight Rating (GVWR)?
The weight stated by the manufacturer as the loaded weight of a single vehicle
The maximum weight that can be pulled by a vehicle
The minimum weight that can be hauled by a vehicle
Q.10.
What can happen if the exhaust system is not working properly?
Poisonous fumes may enter the cab.
Fumes may exit the rear of the muffler system.
Proper steering may be impossible.
Q.11.
Hydroplaning happens most often when:
A vehicle is traveling faster than 60 mph.
Tire pressure is too low.
Tire tread is too deep.
Q.12.
If your vehicle is hydroplaning, you should:
Turn the steering wheel as hard as possible.
Not use the brakes.
Put the vehicle in reverse.
Q.13.
Improperly loaded cargo:
Can be safer than properly loaded cargo.
Can be a hazard.
Can improve fuel efficiency.
Q.14.
Which of the following is not an indicator of when to upshift?
Road speed
RPMs
Time
Q.15.
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.16.
Emergency brakes:
Are not required on vehicles with air brakes.
Are required only on buses.
Are required on all vehicles.
Q.17.
You must have an air brake endorsement:
To use a vehicle with air brakes.
To drive any truck with a trailer.
To transport hazardous materials.
Q.18.
If your brakes fail when traveling downhill, decide what to do as quickly as possible because:
The longer you wait, the faster your vehicle will go.
The longer you wait, the more vehicles will get out of your way.
The longer you wait, the slower your vehicle will go.
Q.19.
When inspecting your vehicle, you should check for all of the following, except:
Too much air pressure in your tires.
Too little air pressure in your tires.
A consistent name brand across all of your tires.
Q.20.
When making a lane change, your turn signal:
Should always be used.
Should only be used if there is traffic present.
Should only be used between dusk and dawn.
Q.21.
When starting your vehicle, the coolant temperature should:
Not change.
Increase gradually.
Quickly jump from low to high.
Q.22.
Hydroplaning:
Rarely happens to trucks.
Usually happens when vehicles are traveling at speeds above 65 mph.
Can occur with a minimal amount of water on the roadway.
Q.23.
What is the number one cause of death and injury in a work zone?
Drivers speeding
Slow drivers
Animals crossing the road
Q.24.
The two markings on a front brake limiting valve usually read:
"Normal" and "slippery."
"Low" and "high."
"Left" and "right."
Q.25.
Which gas would cause concern due to a faulty exhaust system?
Oxygen
Carbon monoxide
Nitrogen
Q.26.
While driving, ____ generally holds spring brakes in place.
Air pressure
Electricity
Gasoline
Q.27.
A poor balance of weight in a trailer:
Can make handling unsafe.
Improves traction.
Increases fuel efficiency.
Q.28.
Which of the following does not indicate bad brakes?
Cracked drums
Pads free of oil or grease
Very thin shoes
Q.29.
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.30.
Why do large vehicles use air brakes?
Other brake systems squeak too loudly.
Air brakes are very effective systems.
Other braking systems are hard to come by.
Q.31.
Exhaust system parts should:
Rub against the fuel system.
Rub against tires.
Not leak.
Q.32.
Which of the following is not a reason to use your mirrors?
You are changing lanes.
You are making a turn.
You are looking at fuel prices.
Q.33.
If planning to back a vehicle where there may be overhanging objects, a driver should:
Cut wires or branches as necessary.
Inspect the area before backing.
Not worry about the obstacles.
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.
If a truck is equipped, a trailer brake hand valve can be used to:
Add fuel to the truck.
Prevent the truck from rolling back when being started from a stop.
Check the engine oil level.
Q.36.
The leakage rate for a triple combination vehicle with air brakes should be no more than ____ in one minute during a static leakage test.
8 psi
5 psi
3 psi
Q.37.
If using a helper when backing a vehicle, the helper should be located:
In front of the passenger's side of the vehicle.
In front of the driver's side of the vehicle.
Near the back of the truck.
Q.38.
A driver should:
Always use turn signals when changing lanes.
Only use turn signals if there is a vehicle next to them.
Not use a turn signal if a lane change is obvious.
Q.39.
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.40.
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.41.
If making a tight turn, the operator of a CMV should:
Be able to drive as fast as the driver of a car.
Not be concerned about speed, but focus on the road.
Warn drivers behind by braking early and slowing gradually.
Q.42.
When cargo is being loaded, weight should be placed:
As high as possible.
As low as possible.
As close to the cab as possible.
Q.43.
Rust around wheel nuts may mean:
It recently rained.
The nuts are loose.
The tire is not clean.
Q.44.
Talking on a hands-free cell phone:
Is not a distraction from driving.
Can be a distraction from driving.
Allows the driver to eat while driving.
Q.45.
When completing an offset back/left parking maneuver, a driver should:
Pull straight forward, then back to the left.
Drive straight back, then pull forward to the left.
Pull straight forward, then drive straight back.
Q.46.
If you doubt that you have enough space to safely drive under a bridge or sign, you should:
Drive faster.
Drive more slowly.
Drive on the shoulder.
Q.47.
Backing with a trailer is dangerous because:
It is difficult to see behind the vehicle.
Most trucks do not have the ability to go in reverse.
Cargo may fall out of the trailer.
Q.48.
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.49.
Emergency equipment in a vehicle is:
Only required for vehicles that are transporting hazardous materials.
Only required during interstate travel.
Required.
Q.50.
An exhaust system should be:
Loose.
Leaking.
Fastened securely.
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