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Oklahoma
Oklahoma CDL Knowledge Test Class B 1
Answers
Q.1.
What color light indicates a vehicle's ABS is not working?
Green
Blue
Yellow
Q.2.
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.3.
A Class 1 hazardous material is:
An explosive.
Liquid.
Corrosive.
Q.4.
When stopping, you should:
Press down the brake pedal quickly.
Press down the brake pedal gradually.
Lift up the brake pedal quickly.
Q.5.
One way to prevent fatigue on long trips is to:
Take frequent breaks.
Text while driving.
Drink caffeine.
Q.6.
One way to avoid becoming an aggressive driver is to:
Talk on your cell phone while driving.
Question others' driving abilities.
Set realistic expectations regarding travel time.
Q.7.
Which of the following is not a type of tie-down equipment?
Ropes
Straps
Velcro
Q.8.
Distracted driving:
Is caused only by physical distractions.
Will be increased by pre-programming radio stations.
Can be prevented by avoiding conversation with others.
Q.9.
If you plan to transport hazardous materials, you will:
Need to obtain a hazardous materials endorsement.
Need to drive while using flashing lights.
Need to wear a gas mask.
Q.10.
The ____ are activated by an electric switch that is triggered by the brake pedal.
Headlights
Turn signals
Brake lights
Q.11.
If there is a fire in your vehicle and you are not sure how to extinguish it, you should:
Use a fire extinguisher.
Try douse the flames with water.
Move away from the flames and wait for the firefighters.
Q.12.
If a speed limit is posted, the posted speed:
Should never be exceeded.
May be exceeded if passing another vehicle.
May be exceeded if driving in a rural area.
Q.13.
If driving in extremely hot weather and the air pressure in your tires is too high, you should:
Continue driving.
Remove air from the tire.
Let the tires cool before continuing to drive.
Q.14.
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.15.
Once cargo is secured onto a vehicle:
You do not need to inspect the cargo.
You should not let others inspect the cargo.
You should check the cargo every 150 miles.
Q.16.
When taking the basic vehicle control skills test, failing to exit your vehicle properly during any exercise will result in:
Failure of only that exercise.
An extra point against your final score.
Automatic failure of the basic vehicle control skills test.
Q.17.
In low temperatures, bridges usually freeze:
After other parts of the roadway.
Before other parts of the roadway.
At the same time as other parts of the roadway.
Q.18.
When using a fire extinguisher on a fire, you should:
Get as close to the fire as possible.
Stand as far away from the fire as possible.
Aim the extinguisher at the top of the fire.
Q.19.
During a pre-trip inspection, belts should be:
Left alone and not inspected.
Checked for tightness.
Inspected, but only about once a month.
Q.20.
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.21.
For a basic vehicle control skills test, you are expected to be able to:
Alley dock.
Weave between a line of cones.
Complete an emergency stop.
Q.22.
Regrooved tires are:
Allowed only on the front of a bus.
Allowed only on the rear of a bus.
Not allowed anywhere on a bus.
Q.23.
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.24.
You should check and adjust your mirrors:
Before driving.
While driving.
After driving.
Q.25.
As part of the vehicle inspection test, a CDL applicant will be asked to:
Check the engine oil level.
Replace a tire.
Remove the alternator belt.
Q.26.
When traveling down a steep downgrade:
The air brakes should be used.
The vehicle should be placed in a low gear and the driver should use engine braking.
The driver should continually downshift instead of using the brakes.
Q.27.
Strong winds usually cause the greatest issues for:
Lighter vehicles.
Heavier vehicles.
Flatbed trailers.
Q.28.
When loading a trailer, it is important to:
Place as little weight as possible over the axles.
Place an appropriate amount of weight over the axles.
Not be concerned with how the cargo's weight is distributed.
Q.29.
Black ice is:
A thick layer of ice on the road.
A thin layer of ice on the road.
Ice that is black from debris on the road.
Q.30.
When using a mirror, you should:
Look quickly at the mirror.
Stare at the mirror for a long time.
Use only the driver’s side mirror.
Q.31.
To prevent becoming an aggressive driver you should:
Increase your speed.
Make gestures at other drivers.
Give other drivers the benefit of the doubt.
Q.32.
The leakage rate for a single vehicle with air brakes should be no more than ____ in one minute during a static leakage test.
1 psi
2 psi
3 psi
Q.33.
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.34.
The tire load for a tire is stated:
On the side of the tire.
On the inside of the tire.
On the inside of the driver’s door.
Q.35.
Unsafely reaching for a phone is:
Acceptable if you are driving without a passenger.
Acceptable if you plan to use a hands-free feature.
Unacceptable even if you plan to use a hands-free feature.
Q.36.
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.37.
Oversized loads:
Can never be transported by a truck.
Should only be transported during the day.
Should receive proper authorization to ensure compliance with state and local laws.
Q.38.
How long should it take for oil pressure to reach a normal level when starting a vehicle?
A few seconds
About a minute
About four minutes
Q.39.
Blocking is used to:
Keep cargo in a large box.
Prevent cargo from sliding in a trailer.
Prevent cargo from falling out of a trailer.
Q.40.
When experiencing cold weather, be sure to check your vehicle's alcohol evaporator:
Every three hours.
Every day.
Every other week.
Q.41.
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.42.
A driver may have:
An automobile license from one state and a CDL from another.
Only one license.
Two licenses: one for automobiles and one for trucks.
Q.43.
To ensure normal stopping power, drivers of vehicles equipped with a front brake limiting valve should:
Set the control to normal.
Set the control to the off position.
Set the control to the neutral position.
Q.44.
An Individual Vehicle Distance Record (IVDR) does not need to include which of the following?
The dates of a trip
The total distance traveled
The number of vehicles passed
Q.45.
What kind of brakes do most newer heavy-duty trucks use?
Dual air brakes
Triple air brakes
Single air brakes
Q.46.
During the driving test, the examiner will be scoring you on:
How well-spoken you are.
How quickly you arrive to your destination.
General driving behavior.
Q.47.
When should mirror adjustments be made?
Before starting a trip
While driving
When a vehicle is stopped at a traffic signal
Q.48.
What should you do if the braking system cannot build up hydraulic pressure?
Upshift.
Downshift.
Hold the brake pedal down as far as it will go.
Q.49.
When operating a truck requiring a CDL:
You are never required to wear a seat belt.
You are required to wear a seat belt, but only if transporting more than 500 pounds of cargo.
You must always wear a seat belt.
You are required to wear a seat belt, but only if you are driving a tank vehicle.
Q.50.
Poor weight balance:
Improves handling.
Makes handling more difficult.
Increases a driver’s ability to steer.
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