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Idaho
Idaho CDL Knowledge Test Class A 2
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Q.1
Submit
You should specifically look out for black ice:
When it is snowing.
When the temperature is below freezing and the road looks wet.
When the temperature is above freezing and there is snow on the ground.
Q.2
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A low air pressure warning signal:
Is not recommended on vehicles with air brakes.
Is required on vehicles with air brakes.
Is optional on vehicles with air brakes.
Q.3
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When completing an offset back/right parking maneuver, you should:
Pull straight forward, then drive straight back.
Drive straight back, then pull forward to the left.
Pull straight forward, then back to the right.
Q.4
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If you see taillights ahead while you are driving in fog:
The lights may not indicate where the road is as the vehicle may have pulled off the roadway.
You can assume the vehicle ahead is on the road.
It may be an optical illusion.
Q.5
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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.6
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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.7
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Dry bulk tanks:
Usually have a low center of gravity.
Usually have a high center of gravity.
Are usually not allowed to cross railroad tracks.
Q.8
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Which of the following does not indicate bad brakes?
Cracked drums
Pads free of oil or grease
Very thin shoes
Q.9
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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.10
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A fatigued driver:
Is usually extra alert.
Is usually more conscientious than a typical driver.
May be slower to make critical decisions than a typical driver.
Q.11
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Header boards:
Provide extra storage.
Protect the driver from being hit by cargo.
Have no benefits.
Q.12
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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.13
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An over-length load requires:
Special permits.
A convoy to halt all traffic.
A person to walk alongside the vehicle.
Q.14
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After a tire has been changed, the driver should stop after a short distance of driving to:
Recheck the tightness of the lug nuts.
See if rocks have gotten into the tread.
Polish the tire.
Q.15
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Regrooved tires:
Should not be used on any vehicle.
Should not be used on the front of a bus.
Should not be used on trucks hauling gravel.
Q.16
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When exiting a vehicle, it is important to maintain ____ with your vehicle at all times.
Three points of contact
Four points of contact
Two points of contact
Q.17
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As the driver of a truck carrying a load, you are responsible for all of the following, except:
Inspecting the cargo.
Recognizing poorly balanced weight.
Knowing the phone numbers of all fire departments along your intended route of travel.
Q.18
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Dual tires should:
Not both be in contact with the road surface.
Not touch one another.
Be different sizes from one another.
Q.19
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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.20
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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.21
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If you have more than one license:
You likely won’t be caught.
You should not tell anyone.
You may get caught through the states' shared computer network.
Q.22
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When inspecting your vehicle, you should check for all of the following, except:
Too much air pressure in your tires.
Too little air pressure in your tires.
A consistent name brand across all of your tires.
Q.23
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When checking tires, which of the following should not cause concern?
Too much air pressure
Tread of at least 4/32 of an inch on front tires
Radial and bias-ply tires used together
Q.24
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Rough acceleration:
Can damage a vehicle.
Is common if a vehicle is warmed up.
Is encouraged to improve gas mileage.
Q.25
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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.26
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Vehicles driving behind a truck:
May have difficulty seeing objects in front of the truck.
Often have a great view of the roadway in front of them.
Do not need to signal.
Q.27
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A second conviction of operating a CMV with a blood alcohol content (BAC) of 0.04 percent or more will result in:
The loss of your CDL for one year.
The loss of your CDL for five years.
The loss of your CDL for life.
Q.28
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What is a Gross Vehicle Weight Rating (GVWR)?
The value stated by the manufacturer as the loaded weight of a single vehicle
The rating of a tire
The rating of a combination vehicle per axle
Q.29
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Slow down and be extra careful:
When traveling in normal traffic.
When driving on dry pavement.
When approaching a work zone.
Q.30
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The use of a hand-held mobile device while driving is:
Prohibited.
Acceptable if weather conditions are clear.
Permitted if use is work-related.
Q.31
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Before attempting to put out an engine fire:
The hood should be opened.
The engine should be turned off.
The accelerator should be depressed to use up the remaining fuel.
Q.32
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When traveling long distances, you should:
Take rest breaks.
Drive as fast as possible.
Drive through the night.
Q.33
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Blocking cargo:
Should never be done.
Should be done to prevent shifting of cargo.
Should only be done with welded material.
Q.34
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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.35
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Drivers may not operate a CMV with a minimum blood alcohol concentration (BAC) of:
0.1 percent.
0.04 percent.
0.08 percent.
Q.36
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Causing a fatality through negligent operation of a CMV will result in the loss of your CDL for at least:
One month.
Six months.
One year.
Q.37
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To make your vehicle more visible during the day, you should:
Use your low beam headlights.
Use your high beam headlights.
Use your clearance lights.
Q.38
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Cargo should be covered:
To protect people from spillage.
To hide the materials.
To make it more difficult to steal.
Q.39
Submit
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.40
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If an air compressor is belt-driven, the belt should be routinely checked to ensure that it is:
Thin.
Properly tightened.
Cracked.
Q.41
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When coming to a stop, you should apply the brake pedal by:
Pushing down gradually.
Pushing down quickly.
Pulling up gradually.
Q.42
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Why are multi-speed axles and auxiliary transmissions used?
To make a vehicle operate more smoothly
To provide extra gears
To improve a vehicle's gas mileage
Q.43
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For safety purposes, when should you turn off a retarder?
When the roadways are slippery
When you have a passenger
When you are carrying a heavy load
Q.44
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When mirrors are properly adjusted:
No part of the vehicle should be visible in the mirrors.
A part of the vehicle should be visible in the mirrors.
More than half of each mirror should show the vehicle.
Q.45
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When taking the on-road driving skills test:
You do not have to take the test with the type of vehicle for which you want to be licensed.
You must take the test with the type of vehicle for which you want to be licensed.
It does not matter which type of vehicle you use to take the test.
Q.46
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Emergency equipment in a vehicle is:
Only required for vehicles that are transporting hazardous materials.
Only required during interstate travel.
Required.
Q.47
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If driving through flowing water or a large puddle, you should:
Increase your speed.
Gently apply the brakes.
Try to stop in the water.
Q.48
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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.49
Submit
How can a driver maintain alertness while driving?
Stay fit and healthy
Keep the cab warm
Eat heavy foods
Q.50
Submit
When approaching a construction worker who is near the road, you should:
Increase your speed.
Decrease your speed.
Move to the shoulder.
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