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Indiana
Indiana CDL Knowledge Test Class B 2
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Q.1
Submit
The ____ tells a driver how much pressure is in the air tanks.
Application pressure gauge
Air compressor governor
Supply pressure gauge
Drum brake
Q.2
Submit
A driver can maintain alertness by:
Not wearing sunglasses during the day.
Keeping the cab warm.
Eating heavy foods.
Having another person ride with them.
Q.3
Submit
When you press the brake pedal in a vehicle with S-cam brakes, air pressure pushes out the rod and moves the:
Slack adjuster.
Axle.
Brake drum.
Alcohol evaporator.
Q.4
Submit
When it is difficult to see, such as at dawn or dusk, what is the best way to make your vehicle more visible?
Use your high beam lights.
Use your low beam lights.
Use only your clearance lights.
Do not use any lights.
Q.5
Submit
If your coolant level is found to be low, you should:
Drain the radiator.
Add more coolant.
Add engine oil.
Tighten the belts.
Q.6
Submit
Windshield wiper blades should be:
Sticky.
Clean.
Brittle.
Cracked.
Q.7
Submit
On newer vehicles, how do you put on the parking brake?
Move a lever to the right.
Push in the yellow, diamond-shaped knob.
Pull out the yellow, diamond-shaped knob.
Pull up on the steering column.
Q.8
Submit
Cargo on flatbed trailers should be:
Tied down.
Glued down.
Left loose.
Pushed to one side.
Q.9
Submit
Seat belts:
Should not be worn.
Are optional for those holding a CDL.
Are required, but only if a driver is transporting hazardous materials.
Are required to be used by all drivers.
Q.10
Submit
If a vehicle has a vehicle inspection report, the driver:
Should not look at the report and instead try to find any issues themselves.
Should take the vehicle to a mechanic.
Should review the report.
Should not conduct a pre-trip inspection and rely only on the report.
Q.11
Submit
Truck tractors with air brakes that were built on or after March 1, 1997 are equipped with:
An extra set of brakes.
Voice-activated brakes.
Cruise control.
Anti-Lock Braking Systems (ABS).
Q.12
Submit
How does doubling your speed from 20 mph to 40 mph affect your vehicle's braking distance?
It stays about the same.
It increases slightly.
It doubles.
It quadruples.
Q.13
Submit
A pre-trip vehicle inspection:
Is not required if the driver regularly uses the vehicle.
Is not required for trips under 100 miles.
Is only to be performed by a mechanic.
Is required by law.
Q.14
Submit
When traction is poor, a driver should accelerate slowly:
Because it is best to always accelerate very slowly.
So they do not lose control of their vehicle.
So the driver does not accelerate faster than the vehicle ahead.
To be the last vehicle through an intersection.
Q.15
Submit
When inspecting your brakes, a slack adjuster should move ____ from where it is attached to the push rod.
At least three inches
More than two inches
Up to five inches
No more than one inch
Q.16
Submit
Looking far ahead of your vehicle while driving is:
Discouraged, as there is little you can do about something far up the road.
Encouraged to help you identify hazards as early as possible.
Not allowed.
Only encouraged if you are transporting hazardous materials.
Q.17
Submit
Test the low pressure warning signal:
Once a month.
Once a week.
Twice a week.
Before every trip.
Q.18
Submit
Headlights:
Are not usually necessary when driving at night.
Provide better light than the sun.
Should be on the high beam setting whenever possible.
Should always be on the high beam setting.
Q.19
Submit
Which of the following is not an example of a driving hazard?
An accident on the roadway
An open road
A police car assisting a motorist on the side of the road
An ice cream truck
Q.20
Submit
The minimum tread depth of all major grooves on tires that are not on the front of a CMV should be a minimum of:
1/32 of an inch.
2/32 of an inch.
4/32 of an inch.
3/4 of an inch.
Q.21
Submit
What must be on an air tank in an air-braked vehicle?
A check valve
A lock
A trap door
An oxidizer
Q.22
Submit
During an applied leakage test, the maximum leakage rate for a triple combination vehicle is:
10 psi in a minute.
8 psi in a minute.
6 psi in a minute.
4 psi in a minute.
Q.23
Submit
If you are being tailgated, you should:
Drive on the shoulder.
Pull off the roadway.
Drive faster.
Allow the vehicle to pass.
Q.24
Submit
If you identify a distracted driver on the road, you should:
Follow their vehicle closely.
Try to get their attention.
Give them plenty of room.
Flash your lights at them.
Q.25
Submit
If a tire fails, the driver should:
Keep one hand on the steering wheel and use their other hand to wave to other drivers.
Stomp on the brakes.
Not use the brakes.
Accelerate.
Q.26
Submit
Which of the following is not an example of a distracted person that motorists should be worried about?
A person talking to another person in their vehicle
A child on the side of the road
A construction worker on the side of the road
A person sitting on a bench waiting for a bus
Q.27
Submit
When approaching a downgrade, how can you reduce the amount of braking that will be needed?
Switch to a higher gear.
Switch to a lower gear.
Switch to neutral.
Turn off the engine.
Q.28
Submit
If using a helper while backing a vehicle, where should they stand?
In front of the passenger side
In front of the driver side
On the wide of the truck
Near the back of the truck
Q.29
Submit
Before driving a vehicle with a dual air brake system, you must wait for the air compressor to build a minimum of ____ in both the primary and secondary systems.
25 psi
50 psi
75 psi
100 psi
Q.30
Submit
What should you do if your vehicle gets stuck on railroad tracks?
Stay in the vehicle.
Get out of the vehicle and call for assistance.
Continue trying to remove the vehicle from the tracks.
Walk down the tracks to look for an oncoming train.
Q.31
Submit
When driving, a driver should:
Not be concerned with what is happening on the right side of their vehicle.
Be concerned with what is happening on all sides of their vehicle.
Not be concerned with what is happening behind their vehicle.
Not be concerned with what is happening in front of their vehicle.
Q.32
Submit
If a roadway is covered by fog, it is best for you to:
Drive faster than usual.
Use your high beam headlights.
Turn off your headlights.
Avoid driving.
Q.33
Submit
A commercial motor vehicle should:
Not be equipped with a fire extinguisher, unless transporting hazardous materials.
Not be equipped with a fire extinguisher, unless the vehicle will be traveling through remote areas.
Never be equipped with a fire extinguisher.
Always be equipped with at least one fire extinguisher.
Q.34
Submit
Where can you find the tire load rating?
On the inside of the driver’s door
On the dashboard
On the side of each tire
Under the hood
Q.35
Submit
When pulled off on the side of the road, a driver should:
Keep the driver’s side door open.
Turn on their emergency flashers.
Wave their arms.
Turn off all lights.
Q.36
Submit
Which of the following is not a crime that would disqualify an applicant from a hazardous materials endorsement?
Kidnapping
Smuggling
Immigration violations
Speeding
Q.37
Submit
In a dual air brake system, a leak in one system:
Always means there are leaks in both systems.
May not affect the other system.
Is not something to worry about.
Will also affect the other system.
Q.38
Submit
Suspension system defects may include all of the following, except:
Cracked or broken spring hangers.
Missing or broken leaves.
Leaking shock absorbers.
Cracked lights.
Q.39
Submit
Your horn should be used to:
Keep other drivers away from you.
Alert other drivers to your presence.
Keep other drivers awake.
Startle other drivers.
Q.40
Submit
On trucks and buses, where are ABS malfunction lamps located?
On the driver’s door
On the instrument panel
On the outside of the vehicle by the passenger’s door
Under the hood
Q.41
Submit
If turning to avoid a hazard:
You should brake hard.
You should not brake as it could cause the wheels to lock.
You should turn the wheel very sharply.
You should hold down the brakes until you are past the hazard.
Q.42
Submit
When backing, it is best to:
Rely only on the passenger’s side mirror.
Try to back up quickly.
Turn toward the passenger’s side whenever possible.
Use a helper, if possible.
Q.43
Submit
Air tank drains:
Allow rain water to enter air tanks.
Are used to drain water and oil from air tanks.
Should never be opened.
Must remain open while driving.
Q.44
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.45
Submit
If a tire fails, you should:
Loosen your grip on the steering wheel.
Immediately apply the brakes.
Check your tires after coming to a complete stop.
Turn sharply off the road.
Q.46
Submit
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.
Holds the spring brakes in position until they are used.
Q.47
Submit
Emergency brakes:
Are not required on trucks.
Are only required on trailers.
Are required on tractors.
Are optional.
Q.48
Submit
To make it as safe as possible to leave a stop, you should park:
So that you must back up to leave your parking space.
So that you can pull forward to leave your parking space.
On the side of a roadway, not in a parking lot.
By backing into a parking space.
Q.49
Submit
The parking brake should be:
Used whenever you park your vehicle.
Used while driving.
Set when driving in bad weather.
Removed.
Q.50
Submit
When making a turn, you do not need to:
Honk your horn.
Cancel your turn signal after the turn.
Signal continuously.
Signal early.
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