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California
California CDL Knowledge Test Class A 2
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Q.1
Submit
What helps prevent wheel lockup when braking?
An Anti-Lock Braking System (ABS)
Air brakes
An alternator
Q.2
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In a dual air brake system, a leak in one system:
Always means there are leaks in both systems.
May not affect the other system.
Is not something to worry about.
Q.3
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You may not consume alcohol within ____ of going on duty.
One hour
Two hours
Four hours
Q.4
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Poor weight balance:
Improves handling.
Can negatively affect handling.
Will reduce fuel consumption.
Q.5
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Do not operate a vehicle if any brake drums have cracks that are larger than ____ of the width of the friction area.
One half
One third
One fifth
Q.6
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The radiator cap:
Should not be removed when the coolant is hot.
Can be removed when the coolant is hot.
Should be cool to the touch under normal driving conditions.
Q.7
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How should you brake if your vehicle's ABS is not working?
Brake normally, as you will still have functioning brakes.
Pump the brake repeatedly.
Press the brake pedal down as hard as you can.
Q.8
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When should a driver sign a vehicle inspection report?
After every trip
If noted defects are repaired
After each fueling
Q.9
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Poor weight balance:
Improves handling.
Makes handling more difficult.
Increases a driver’s ability to steer.
Q.10
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During an applied leakage test, the maximum leakage rate for a double combination vehicle is ____ in a minute.
2 psi
4 psi
6 psi
Q.11
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A person driving with an open window in cold weather may be:
A distracted driver.
A person who is dressed inappropriately.
A person who likes fresh air.
Q.12
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What is removed when an air tank is drained?
Water and oil
Ammonia
Liquid cleaners
Q.13
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The ____ tells a driver how much pressure is in the air tanks.
Application pressure gauge
Air compressor governor
Supply pressure gauge
Drum brake
Q.14
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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.15
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If being tailgated, you should:
Increase your speed.
Increase the amount of space between your vehicle and the vehicle in front of you.
Make quick movements.
Q.16
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Violation points for major violations are retained on a driving record for:
Three years.
10 years.
55 years.
Q.17
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When completing a driver's side parallel parking maneuver, you should:
Pull forward directly into the parking space.
Back up past the parking space, then pull forward into it.
Pull forward past the parking space, then back into it.
Q.18
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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.19
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If unable to tell if the road is becoming icy and slippery, a driver:
Should try guessing.
May open their window and feel the front of the side mirror for ice.
Should look at the road closely.
Q.20
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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.21
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To prevent a vehicle from rolling backward when beginning to move forward from a stopped position, you should:
Turn off the engine.
Partly engage the clutch.
Apply the emergency brake.
Q.22
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During a basic vehicle control skills test, a look is when:
A driver checks the gauges on their instrument panel.
A driver checks their blind spots.
A driver walks to the back of their vehicle to check its position.
Q.23
Submit
Having ABS on only one axle:
Can be dangerous.
Still allows you additional control when braking.
Slows the vehicle, but cannot stop it.
Q.24
Submit
If the spring brakes are on, you should:
Not use the brake pedal.
Press the accelerator.
Move the steering wheel.
Q.25
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What is road rage?
Operating a motor vehicle with the intent of doing harm to others
Operating a motor vehicle that is deemed unsafe
Operating a motor vehicle that has not been inspected
Q.26
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A modulating control valve can control the:
Spring brakes.
Landing gear.
Air brakes.
Q.27
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Vehicles equipped with Anti-Lock Braking Systems (ABS) have ____ malfunction lamps to indicate when the ABS is not working.
Green
Blue
Yellow
Q.28
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Talking on a cell phone while driving removes about ____ of a person's focus from the task of driving.
10 percent
39 percent
82 percent
Q.29
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If turning to avoid a hazard:
You should brake hard.
You should not brake as it may cause the wheels to lock.
You should turn very sharply.
Q.30
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When adjusting your mirrors before a trip:
No part of your vehicle should be visible in any mirror.
Part of your vehicle should be visible in the mirrors.
More than half of each mirror should show the vehicle.
Q.31
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When traveling down a steep grade, you switch into a lower gear:
Before beginning the grade.
When you have already started the grade.
As far down the grade as possible.
Q.32
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Braking mechanisms are located inside:
The fifth wheel.
A brake drum.
The landing gear.
Q.33
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Driving with a cargo of hanging meat in a trailer:
Is discouraged during the summer months.
Can be problematic because animals are attracted to the smell of the meat.
Is challenging because the load has a high center of gravity.
Q.34
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Mirror adjustment can only be checked properly if:
The trailer is straight.
There is no trailer.
The vehicle is on a slight incline.
Q.35
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You should maintain at least ____ of following distance per every 10 feet of your vehicle when you are traveling more slowly than 40 mph.
One second
Two seconds
Three seconds
Q.36
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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.37
Submit
A tread depth of ____ should be in every major groove of a tire that is not in the front of a commercial motor vehicle.
1/32 of an inch
2/32 of an inch
4/32 of an inch
Q.38
Submit
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.39
Submit
Which of the following vehicles is not exempted in requiring the driver to hold a CDL?
A military vehicle
A school bus
An emergency vehicle
Q.40
Submit
After an accident, flares should be used with caution because:
There may be fuel spilled on the ground that could catch fire.
Other drivers may not see the flares if the weather is sunny.
Flares are expensive.
Q.41
Submit
If you are braking on dry pavement while traveling at 55 mph, how much distance will brake lag add to your overall stopping distance?
32 feet
45 feet
20 feet
Q.42
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When backing with a trailer, you should begin by:
Turning the steering wheel in the direction of the turn.
Turning the steering wheel in the direction opposite of the turn.
Turning the wheel as sharply as possible.
Q.43
Submit
If your license to operate a personal vehicle is revoked or suspended:
You can get a hardship license to operate a CMV.
You cannot get a hardship license to operate a CMV.
Your CDL will not be affected.
Q.44
Submit
The maximum height of a load is:
Eight feet.
10 feet.
14 feet.
Q.45
Submit
What can happen if the air pressure gets too low in an air brake system?
The brakes may squeak.
The brakes may stop working.
The brakes may be sluggish.
Q.46
Submit
When drivers turn, they usually:
Look in the direction of the turn.
Look in the direction opposite the turn.
Look behind their vehicles.
Q.47
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One way to prevent drowsiness while driving is to:
Drive alone.
Avoid regular exercise.
Get adequate sleep the night before the trip.
Q.48
Submit
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.49
Submit
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.
Q.50
Submit
If your brakes fail while you are traveling downhill and there is no available escape ramp, you should:
Keep pumping the brakes.
Turn the vehicle off.
Drive into an open field.
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