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Driving Test
California
California CDL Knowledge Test Class B 2
Answers
Q.1.
A truck tractor built after March 1, 1997 must be equipped with:
An Anti-Lock Braking System (ABS).
A flag.
Hydraulic brakes.
Q.2.
When leaving a vehicle unattended, a driver should:
Always set the parking brake.
Only set the parking brake if the vehicle is parked on a slope.
Deflate the tires by 10 percent.
Q.3.
In a vehicle with dual air brakes, a leak in one system ____ the second system.
Will always affect
May not affect
Is caused by
Q.4.
When loading a trailer, weight should be:
Placed as high as possible.
Placed as low as possible.
Placed as far to the left as possible.
Q.5.
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.6.
Drivers trapped behind a slow-moving vehicle often:
Follow the vehicle too closely.
Allow the vehicle plenty of space.
Are happy with the speed of travel.
Q.7.
Texting while driving is especially dangerous because:
It is both a mental and physical distraction.
A message may be upsetting to the driver.
People like to read and may become too engaged in their phones.
Q.8.
During an applied leakage test, the maximum leakage rate for a double combination vehicle is:
10 psi in a minute.
8 psi in a minute.
6 psi in a minute.
4 psi in a minute.
Q.9.
Truck tractors with air brakes built on or after March 1, 1997 must have:
An Anti-Lock Braking System (ABS).
Bluetooth.
A GPS.
Q.10.
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.11.
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.12.
As part of the vehicle inspection test, a CDL applicant may be asked to:
Check the engine oil level.
Replace a tire.
Remove the alternator belt.
Q.13.
A danger of swerving to avoid a hazard while driving a large truck is that:
The truck may miss the object.
The truck may flip over.
The truck may stay in the same lane.
Q.14.
If the safety relief valve in the air brake system releases air:
The compressor needs more air.
There is something wrong with the brakes.
You may continue driving.
Q.15.
Why should you regularly drain the air tanks?
Because the air gets old and needs to be replaced
Because compressed air contains some water and the water collects in the tanks
To allow for a change in pressure
Q.16.
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.17.
When asked to make a lane change during the driving test, you should:
Make the change as soon as the examiner asks, without looking.
Use your turn signal and change lanes when safe.
Make the lane change as quickly as possible, even if that means cutting off another driver.
Q.18.
A cardboard box on the roadway:
Should be expected to be on the roadway.
Is usually empty and harmless.
Could contain a heavy object that could damage vehicles.
Q.19.
When inspecting the windshield before a trip, a person should do all the following, except:
Remove and sharpen the wiper blades.
Check the windshield wipers for proper spring tension.
Check the wiper blades for damage.
Q.20.
When inspecting your tires, you do not want to find:
Tire tread that is 4/32 of an inch deep.
Valve stems without damage.
Mismatched tire sizes.
Q.21.
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
Q.22.
Rust around wheel nuts may mean:
It has rained recently.
The nuts could be loose.
The tires should be replaced.
Q.23.
When accelerating on a surface with poor traction, such as a wet road, a driver should:
Speed up quickly.
Speed up slowly.
Not be concerned about the pavement.
Q.24.
If you are disqualified from driving:
Your employer will be notified by the state.
You must notify your employer within two business days.
You must notify your employer within a month.
Q.25.
A ____ allows a driver to gradually apply spring brakes.
Modulating control valve
Trailer air supply control
Relay valve
Q.26.
During the driving test, when asked to make a lane change:
You should not be concerned with other motorists.
You should use your turn signal and change lanes when safe.
You should make the lane change as quickly as possible, even if that means cutting off another driver.
Q.27.
A one-way check valve:
Drains the water and compressor oil from the air tanks.
Prevents air from escaping if the air compressor has a leak.
Activates the emergency brakes when there is a leak.
Q.28.
If you are taking the driving test and the route does not include a railroad crossing, you:
Will not have to do anything related to a crossing.
May have to explain how you would cross railroad tracks.
Will have to take a different route.
Q.29.
Cargo being transported should be checked:
Only before the trip.
Before the trip and again within the first 50 miles of the trip.
Only by the loading personnel.
Q.30.
While driving, gauges are:
Unreliable.
Unpredictable.
To be monitored for potential signs of trouble.
Q.31.
Who is responsible for cargo that has been loaded onto a truck?
The person who loaded the truck
The supervisor of the company
The truck driver
Q.32.
A jogger wearing a stereo headset:
Is probably aware of what is happening around them.
May not be aware of what is happening around them.
Can hear the sounds of traffic.
Q.33.
If an air compressor is belt-driven, the belt should be routinely checked to ensure that it is:
Thin.
Properly tightened.
Cracked.
Q.34.
When starting an engine, oil pressure should come up to a normal level:
Within seconds.
Within five minutes.
After about three minutes.
Q.35.
Your horn should be used to:
Tell other drivers that you are angry.
Warn other drivers that you are near.
Frighten other drivers.
Q.36.
When transporting a load, the cargo should be inspected:
Only at the beginning of a drive.
Only after driving a long distance.
After every break.
Q.37.
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.38.
During a static leakage test, the maximum leakage rate for a triple combination vehicle with air brakes is ____ in a minute.
3 psi
5 psi
7 psi
Q.39.
An air compressor governor controls:
When the air compressor pumps air into the air storage tanks.
How fast air is pumped into the air storage tanks.
The temperature of the air pumped into the air storage tanks.
Q.40.
In a vehicle with dual parking control valves, a separate air tank can be used:
To make the air brakes work more effectively.
To temporarily release the spring brakes.
To charge the brakes on the rear trailer.
Q.41.
On a slippery surface, stopping distance:
Is longer than on a regular driving surface.
Is not as long as on a regular driving surface.
Is about the same as on a regular driving surface.
Q.42.
If you are turning left at an intersection where there are two available turn lanes:
It is best to use the right lane.
It doesn’t matter which lane you use.
It is best to use the left lane.
Q.43.
If you are feeling tired and yawning a lot while you are driving, you should:
Pull over and take a nap.
Get some coffee.
Drive faster.
Q.44.
A modulating control valve can control the:
Spring brakes.
Landing gear.
Air brakes.
Q.45.
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.46.
What do the two systems of a dual air brake system share?
Hoses
An air compressor
Air tanks
Q.47.
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.48.
In a dual air brake system, air pressure should build from 85 to 100 psi within ____ seconds.
25
10
45
Q.49.
Braking mechanisms are located ____ a brake drum.
Outside
Inside
Next to
Q.50.
Cargo should be covered:
To protect people from spillage.
To hide the materials.
To make it more difficult to steal.
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