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Indiana CDL Class B Knowledge Test 2
Practice mode
Question
1
of 25
QUESTION 1 / 25
The ____ tells a driver how much pressure is in the air tanks.
Choose one answer below.
A
Application pressure gauge
✓
B
Air compressor governor
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C
Supply pressure gauge
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D
Drum brake
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QUESTION 2 / 25
A driver can maintain alertness by:
Choose one answer below.
A
Not wearing sunglasses during the day.
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B
Keeping the cab warm.
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C
Eating heavy foods.
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D
Having another person ride with them.
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QUESTION 3 / 25
When you press the brake pedal in a vehicle with S-cam brakes, air pressure pushes out the rod and moves the:
Choose one answer below.
A
Slack adjuster.
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B
Axle.
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C
Brake drum.
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D
Alcohol evaporator.
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QUESTION 4 / 25
When it is difficult to see, such as at dawn or dusk, what is the best way to make your vehicle more visible?
Choose one answer below.
A
Use your high beam lights.
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B
Use your low beam lights.
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C
Use only your clearance lights.
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D
Do not use any lights.
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QUESTION 5 / 25
If your coolant level is found to be low, you should:
Choose one answer below.
A
Drain the radiator.
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B
Add more coolant.
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C
Add engine oil.
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D
Tighten the belts.
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QUESTION 6 / 25
Windshield wiper blades should be:
Choose one answer below.
A
Sticky.
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B
Clean.
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C
Brittle.
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D
Cracked.
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QUESTION 7 / 25
On newer vehicles, how do you put on the parking brake?
Choose one answer below.
A
Move a lever to the right.
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B
Push in the yellow, diamond-shaped knob.
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C
Pull out the yellow, diamond-shaped knob.
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D
Pull up on the steering column.
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QUESTION 8 / 25
Cargo on flatbed trailers should be:
Choose one answer below.
A
Tied down.
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B
Glued down.
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C
Left loose.
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D
Pushed to one side.
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QUESTION 9 / 25
Seat belts:
Choose one answer below.
A
Should not be worn.
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B
Are optional for those holding a CDL.
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C
Are required, but only if a driver is transporting hazardous materials.
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D
Are required to be used by all drivers.
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QUESTION 10 / 25
If a vehicle has a vehicle inspection report, the driver:
Choose one answer below.
A
Should not look at the report and instead try to find any issues themselves.
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B
Should take the vehicle to a mechanic.
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C
Should review the report.
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D
Should not conduct a pre-trip inspection and rely only on the report.
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QUESTION 11 / 25
Truck tractors with air brakes that were built on or after March 1, 1997 are equipped with:
Choose one answer below.
A
An extra set of brakes.
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B
Voice-activated brakes.
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C
Cruise control.
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D
Anti-Lock Braking Systems (ABS).
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QUESTION 12 / 25
How does doubling your speed from 20 mph to 40 mph affect your vehicle's braking distance?
Choose one answer below.
A
It stays about the same.
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B
It increases slightly.
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C
It doubles.
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D
It quadruples.
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QUESTION 13 / 25
A pre-trip vehicle inspection:
Choose one answer below.
A
Is not required if the driver regularly uses the vehicle.
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B
Is not required for trips under 100 miles.
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C
Is only to be performed by a mechanic.
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D
Is required by law.
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QUESTION 14 / 25
When traction is poor, a driver should accelerate slowly:
Choose one answer below.
A
Because it is best to always accelerate very slowly.
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B
So they do not lose control of their vehicle.
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C
So the driver does not accelerate faster than the vehicle ahead.
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D
To be the last vehicle through an intersection.
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QUESTION 15 / 25
When inspecting your brakes, a slack adjuster should move ____ from where it is attached to the push rod.
Choose one answer below.
A
At least three inches
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B
More than two inches
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C
Up to five inches
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D
No more than one inch
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QUESTION 16 / 25
Looking far ahead of your vehicle while driving is:
Choose one answer below.
A
Discouraged, as there is little you can do about something far up the road.
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B
Encouraged to help you identify hazards as early as possible.
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C
Not allowed.
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D
Only encouraged if you are transporting hazardous materials.
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QUESTION 17 / 25
Test the low pressure warning signal:
Choose one answer below.
A
Once a month.
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B
Once a week.
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C
Twice a week.
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D
Before every trip.
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QUESTION 18 / 25
Headlights:
Choose one answer below.
A
Are not usually necessary when driving at night.
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B
Provide better light than the sun.
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C
Should be on the high beam setting whenever possible.
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D
Should always be on the high beam setting.
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QUESTION 19 / 25
Which of the following is not an example of a driving hazard?
Choose one answer below.
A
An accident on the roadway
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B
An open road
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C
A police car assisting a motorist on the side of the road
✓
D
An ice cream truck
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QUESTION 20 / 25
The minimum tread depth of all major grooves on tires that are not on the front of a CMV should be a minimum of:
Choose one answer below.
A
1/32 of an inch.
✓
B
2/32 of an inch.
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C
4/32 of an inch.
✓
D
3/4 of an inch.
✓
QUESTION 21 / 25
During an applied leakage test, the maximum leakage rate for a triple combination vehicle is:
Choose one answer below.
A
10 psi in a minute.
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B
8 psi in a minute.
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C
6 psi in a minute.
✓
D
4 psi in a minute.
✓
QUESTION 22 / 25
If you are being tailgated, you should:
Choose one answer below.
A
Drive on the shoulder.
✓
B
Pull off the roadway.
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C
Drive faster.
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D
Allow the vehicle to pass.
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QUESTION 23 / 25
If you identify a distracted driver on the road, you should:
Choose one answer below.
A
Follow their vehicle closely.
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B
Try to get their attention.
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C
Give them plenty of room.
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D
Flash your lights at them.
✓
QUESTION 24 / 25
If a tire fails, the driver should:
Choose one answer below.
A
Keep one hand on the steering wheel and use their other hand to wave to other drivers.
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B
Stomp on the brakes.
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C
Not use the brakes.
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D
Accelerate.
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QUESTION 25 / 25
Which of the following is not an example of a distracted person that motorists should be worried about?
Choose one answer below.
A
A person talking to another person in their vehicle
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B
A child on the side of the road
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C
A construction worker on the side of the road
✓
D
A person sitting on a bench waiting for a bus
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