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Washington
Washington CDL Knowledge Test Class B 2
Answers
Q.1.
When it’s difficult to see, such as at dawn or dusk, a driver can increase their vehicle's visibility by:
Driving while using their lights.
Driving with their windows open.
Flashing their lights periodically.
Q.2.
When approaching your vehicle as part of a pre-trip inspection, seeing fresh oil underneath the vehicle is:
A good sign.
Normal.
A cause for concern.
Q.3.
What do air brakes use to make the brakes work?
Compressed air
Outside air
Non-compressed air
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.
In a dual air brake system:
Air tanks are shared between both systems.
Each system has its own air tanks.
You must designate which system you are using.
Q.6.
When are people usually the least alert?
In the morning
In the early evening
Late at night
Q.7.
The minimum acceptable tread depth for rear tires is:
1/64 of an inch.
1/32 of an inch.
2/32 of an inch.
Q.8.
When pulled off on the side of the road:
A driver should keep the driver’s side door open.
A driver should turn on the emergency flashers.
The driver should wave their arms.
Q.9.
Which of the following is not a reason to cover cargo?
To protect people from spilled cargo
To protect the cargo from weather
To keep the cargo a secret
Q.10.
A dual air brake system:
Consists of two separate air brake systems that share a single set of controls.
Is a single air brake system with two different sets of controls.
Consists of one air brake system for the left side of the truck and one system for the right side of the truck, each with its own set of controls.
Q.11.
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.12.
Blocking is used to:
Prevent cargo from shifting.
Prevent cargo from being loaded too high.
Prevent cargo from being unloaded too quickly.
Q.13.
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.14.
If you are confronted by an aggressive driver, you should:
Make eye contact.
Ignore their gestures.
Try to race.
Q.15.
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.16.
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.17.
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.18.
Too much air pressure in a tire:
Is not possible.
Is encouraged on long drives.
Can be dangerous.
Q.19.
The Individual Vehicle Distance Record (IVDR) does not need to include which of the following?
Trip origin
Vehicle Identification Number
Number of meals eaten by the driver
Q.20.
Roads are especially slippery right after it begins to rain because:
The water mixes with oil and grease on the road.
Tires are not made to drive in wet weather.
The water yet hasn't absorbed the dirt and grease.
Q.21.
A distracted driver:
Usually follows the rules of the road.
Usually has slowed perception.
Is a good person to follow.
Q.22.
Friction in an S-cam brake is caused when the brake shoes and linings:
Press against the outside of the brake drum.
Press against the inside of the brake drum.
Push against each other.
Q.23.
When starting the engine of a truck with a trailer, you can tell that your vehicle's ABS is not working if:
The yellow light on the left rear of the trailer stays on.
The red light on the right side of the trailer flashes three times.
All the rear lights flash and then turn off.
Q.24.
Backing with a trailer is dangerous because:
It is difficult to see behind the vehicle.
Most trucks do not have the ability to move in reverse.
Cargo may fall out of the trailer.
Q.25.
How much distance will an air brake-equipped vehicle need to come to a complete stop if it is traveling at 55 mph under ideal driving conditions?
300 feet
100 feet
450 feet
Q.26.
If the safety relief valve in an air brake system is releasing air:
You should not be concerned as this is a normal process.
There is something wrong with the brakes.
The valve is operational.
Q.27.
When traveling down a hill, you can reduce the amount of required braking by:
Switching into a higher gear.
Switching into a lower gear.
Switching into neutral.
Q.28.
In a dual air brake system, air pressure should build from 85 to 100 psi within ____ seconds.
25
10
45
Q.29.
When leaving your vehicle unattended:
The parking brake must be always be used.
The parking brake should never be used.
Windows in the cab should be lowered.
Q.30.
People working on a disabled vehicle:
Are probably aware of the roadway.
May be distracted by the repair and not pay attention to the roadway.
Are exempt from traffic laws.
Q.31.
A broken exhaust system:
Can allow poisonous fumes to enter the cabin.
Does not cause problems.
Should not be a concern.
Q.32.
If a driver has stopped on the road and is placing triangles to warn other motorists:
The triangles should be held between the driver and oncoming traffic.
The triangles should be carried behind the driver's back to prevent them from being seen by other drivers until they are placed.
The triangles should be held as low as possible.
Q.33.
If involved in an accident, a truck operator should:
Exchange information with all others involved in the collision.
Fly a drone to take pictures of the accident scene.
Immediately drive to the nearest police department to file a report.
Q.34.
When leaving your vehicle unattended:
The parking brake should be used.
The parking brake only needs to be used if the vehicle is parked on a slope.
The parking brake should not be used, as it can damage the tires.
Q.35.
Which of the following is not a sign of a driver becoming tired?
Frequent blinking
Drifting from their lane
Feeling hungry
Q.36.
Air pressure should build up in a single air system within:
15 minutes.
12 minutes.
Three minutes.
Q.37.
During a basic vehicle controls skills test exercise, your vehicle's final position should be:
In the general area that was described by the examiner.
In the exact final position described by the examiner.
Within three feet of the final position described by the examiner.
Q.38.
When making tight maneuvers, it is important for a driver to:
Open their door for a better look.
Use their mirrors.
Flash their headlights.
Q.39.
If confronted by an aggressive driver, you should:
Make eye contact to better communicate with them.
Ignore their gestures.
Not move out of their path of travel.
Q.40.
A poor balance of weight in a trailer:
Can make handling unsafe.
Improves traction.
Increases fuel efficiency.
Q.41.
A driver should ensure that:
The truck is overloaded.
The truck is properly loaded.
The cargo is mostly in the front of the trailer.
Q.42.
A stopped bus:
Is not a cause for concern since it is stopped.
Is only a concern if passengers are exiting the bus.
Is a concern whether or not passengers are visible.
Q.43.
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.44.
Which of the following is not a cause of hydraulic brake failure?
Loss of hydraulic pressure
Brake fade on long hills
Downshifting
Q.45.
What is the left lane rule?
Heavy vehicles must only be driven in the left lane of a road with three lanes traveling in one direction.
Heavy vehicles may only be driven in the left lane of a road with three lanes traveling in one direction if making a left turn.
Heavy vehicles cannot be driven in the left lane of a three lane road for any purpose.
Q.46.
A truck tractor built after March 1, 1997 must be equipped with:
An Anti-Lock Braking System (ABS).
A flag.
Hydraulic brakes.
Q.47.
You should ____ if the low pressure warning signal activates while you are driving.
Stop where you are and park
Exit the roadway as soon as safely possible
Continue driving normally
Q.48.
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.
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.50.
If an unusual noise or feeling occurs in a vehicle while it is being driven, the driver should:
Assume it is not a concern and continue driving.
Hope the vehicle does alright until it is switched to another driver.
Check the situation to determine the proper solution.
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