
Section 05.02 Dual AB Quiz
Authored by ARMINA WRICE
Specialty
12th Grade
Used 2+ times

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16 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary purpose of a dual air brake system in heavy-duty vehicles?
To provide better fuel efficiency
To ensure safety by having two separate air brake systems
To increase the speed of the vehicle
To reduce the weight of the vehicle
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What should the minimum air pressure be in both the primary and secondary systems before driving a vehicle with a dual air system?
50 psi
55 psi
100 psi
150 psi
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What should you do if the air pressure drops below 55 psi in either system while driving?
Continue driving at a slower speed
Stop right away and safely park the vehicle
Increase the speed to build up pressure
Ignore the warning and keep driving
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the function of the warning light and buzzer in a dual air brake system?
To indicate when the vehicle needs refueling
To alert the driver when air pressure is low
To signal when the vehicle is speeding
To notify the driver of engine overheating
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What should you check during Step 2 Engine Compartment Checks for air brake systems?
Air Compressor Drive Belt
Slack Adjusters
Brake Drums
Air Leakage Rate
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the most common problem found in roadside inspections related to air brakes?
Loose brake drums
Out-of-adjustment brakes
Worn brake linings
Cracked brake hoses
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What should you do if a slack adjuster moves more than about one inch where the push rod attaches to it?
Replace the brake drum
Adjust it or have it adjusted
Check the air compressor
Check the air leakage rate
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