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Oregon
Oregon CDL Knowledge Test Class B 1
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Q.1
Submit
When turning quickly to avoid an object in the roadway, you should:
Apply your brakes as you steer.
Give yourself extra clearance by turning more than needed to miss the object.
Turn just enough to miss the object and avoid turning more.
Steer and accelerate at the same time.
Q.2
Submit
When braking with ABS, you should:
Pump the brake pedal.
Brake normally.
Brake harder than you would with a different braking system.
Q.3
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What is the purpose of a vehicle inspection report?
It tells the motor carrier about problems that may need to be fixed.
It ensures that the vehicle is inspected regularly.
It keeps drivers accountable for inspecting their vehicles.
It provides a plan for the next five trips.
Q.4
Submit
What is Gross Vehicle Weight (GVW)?
The total weight of a vehicle and its cargo
The total weight of a vehicle before cargo
The total weight of cargo
The maximum weight allowed to be transported by a vehicle
Q.5
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If convicted of a traffic violation in your personal car:
You must tell your employer.
Your CDL will not be affected.
Law enforcement will tell your employer.
Q.6
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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.7
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Trailers should:
Be overloaded to improve efficiency.
Not be overloaded because it is dangerous.
Not be overloaded because drivers are only paid to transport certain weights.
Be loaded with all the weight directly behind the cab.
Q.8
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When a vehicle is started, the coolant temperature should:
Decrease.
Rise slowly.
Hold steady.
Q.9
Submit
What does an Anti-Lock Braking System (ABS) do?
Allow the rear wheels to lock up
Allow all wheels to lock up
Help prevent wheel lockup
Alert other motorists when you are braking
Q.10
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When traveling down a steep downgrade:
The air brakes should be used.
Shift into a lower gear, then use brakes to supplement the braking effect of the engine.
The vehicle should be continually downshifted in the place of using the brakes.
The vehicle should be driven on the shoulder.
Q.11
Submit
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.12
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What should be done before transporting an over-length load?
Special transit permits should be acquired.
Fire departments along the route should be alerted.
Tolls should be paid.
Q.13
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If brakes overheat while going down a downhill grade, they may:
Get sticky.
Stop working.
Squeak.
Q.14
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What is axle weight?
The weight transmitted to the ground by one axle
The weight of one axle
How much weight an axle can hold
Q.15
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If a vehicle has a vehicle inspection report from the previous driver:
The driver should not conduct a pre-trip inspection and rely on the report.
The driver should take the vehicle to a mechanic.
The driver should review the report.
The driver should speak with the previous driver.
Q.16
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When about to drive a vehicle with a dual brake system, a driver should:
Let the vehicle warm up to ensure the fuel reaches the engine.
Wait for air pressure to build in both the primary and secondary systems.
Begin driving just after the engine starts.
Pump the pedal about 20 times to build pressure, then begin driving.
Q.17
Submit
While still below the legal limit, a driver operating a CMV with a detectable amount of alcohol in their system will:
Result in an out-of-service order for two hours.
Result in an out-of-service order for 10 hours.
Result in an out-of-service order for 24 hours.
Q.18
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What is the minimum number of tie-downs required to secure a 10-foot piece of cargo?
One
Two
Three
Q.19
Submit
Which of the following determines your blood alcohol concentration (BAC)?
How much you drink
How frequently you drink
The temperature of the drink
Q.20
Submit
As part of the vehicle inspection test, you will be asked to:
Explain what you would inspect and why.
Replace an electrical fuse.
Unload the trailer.
Q.21
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An after-trip inspection should be done:
Once a week.
Once a month.
After every trip.
Q.22
Submit
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.23
Submit
By beginning a left turn before reaching the center of an intersection, you:
Will likely complete the turn satisfactorily.
May hit other vehicles with the left side of your vehicle.
Can expect other drivers to move their vehicles to accommodate your turn.
Q.24
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When driving, being aware of what is happening behind you is:
Not important.
Important.
Distracting.
Q.25
Submit
What is tire load?
The maximum air pressure of a specific tire
The maximum safe weight that a tire can carry at a specified pressure
The minimum safe weight that can be carried by a tire
The average weight of tires on a vehicle
Q.26
Submit
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.27
Submit
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 about how the weight is distributed.
Only place weight over the axles.
Q.28
Submit
When checking the engine compartment, you should check all of the following, except:
The engine oil level.
The coolant level in the radiator.
The windshield washer fluid level.
The fuel level.
Q.29
Submit
What is sleep debt?
When you fall behind on sleep
When you want to take a nap
Excess sleep
The amount of time it takes to get ready to drive after sleeping
Q.30
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.31
Submit
The air pressure in a dual air brake system should build from 85 to 100 psi within:
Two minutes.
15 seconds.
10 minutes.
45 seconds.
Q.32
Submit
The steering wheel should be:
Held with both hands.
Held with one hand to keep the other hand free.
Held with one hand at a time, alternating between hands.
Q.33
Submit
Roads are especially slippery when it first begins to rain because:
Water is always very slippery.
The fresh rain mixes with oil on the roadway.
The water has nowhere to go.
Q.34
Submit
Which of the following is not an example of a distracted person that motorists should be worried about?
A driver talking to another person in a vehicle
Children on the side of the road
Construction workers on the side of the road
A person sitting on a bench waiting for a bus
Q.35
Submit
What is the only way to sober up after drinking?
Take a cold shower.
Exercise.
Wait.
Drink coffee.
Q.36
Submit
Pre-trip inspections should be done:
Differently each time, emphasizing different items.
The same way each time so you are less likely to forget something.
Once in a while.
By someone other than the driver.
Q.37
Submit
What is another name for front end header boards?
Headache racks
Cargo stoppers
Head braces
Bonkers
Q.38
Submit
Vehicles equipped with Anti-Lock Braking Systems (ABS) have ____ malfunction lamps to indicate when the ABS is not working.
Green
Blue
Yellow
Q.39
Submit
If a vehicle is accompanied by a vehicle inspection report:
The driver should first inspect the vehicle, then compare their notes with the report.
The driver should first look at the report when completing an inspection.
The driver should not conduct a pre-trip inspection and should rely only on the report.
Q.40
Submit
During a static leakage test, what is the maximum leakage rate that is safe for a double combination vehicle?
3 psi in one minute.
6 psi in one minute.
8 psi in one minute.
Q.41
Submit
When carrying a sealed load, a driver:
Should unseal the load to ensure safety.
Should ensure the weight does not exceed weight limits.
Must go through the container before driving.
Q.42
Submit
Do not base your decision to shift gears on:
The speed of your engine (rpm).
The speed of the road (mph).
The actions of the vehicle next to you.
Q.43
Submit
How can you avoid becoming drowsy on a trip?
Get about three hours of sleep beforehand.
Plan ahead, including stopping points.
Do not build exercise into your daily routine.
Schedule the trip at night.
Q.44
Submit
Which of the following is not an indication of damaged brakes?
Cracked drums
Shoes with oil or grease on them
Shoes worn thinly
Pads free of oil or grease
Q.45
Submit
Bent lock rings:
Are acceptable.
Are not a concern in dry weather.
Are dangerous.
Can lengthen tire life.
Q.46
Submit
When other vehicles have trouble seeing you at dawn or dusk, you can increase your visibility by:
Turning on your four-way flashers.
Honking your horn.
Turning on your headlights.
Turning on your windshield wipers.
Q.47
Submit
When checking the exhaust system, it should be:
Loose.
Leaking.
Fastened securely.
Cracked.
Q.48
Submit
To help your vehicle be seen by others:
Your lights should be clean.
Your lights should be off during the day.
Your lights should be covered with grease.
Your lights should only be used in the rain.
Q.49
Submit
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.50
Submit
When starting the vehicle during the pre-trip inspection, the coolant temperature should:
Decrease.
Rise slowly.
Hold steady.
Jump quickly.
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