Asked by Hallee Donley on Jun 22, 2024
Verified
What service braking is actuated by the primary circuit on a typical tandem drive axle,air brake equipped tractor?
A) front brakes
B) drive axle brakes
C) emergency braking only
D) all tractor axles
Primary Circuit
The main electrical circuit in a system, responsible for providing power to the essential components or functions.
Tandem Drive Axle
One of a pair of drive axles used in tandem drive highway trucks.
Air Brake Equipped Tractor
A tractor fitted with a pneumatic brake system, utilizing compressed air to create braking force for the vehicle.
- Discern the specific purposes of various valves within the pneumatic brake system.
Verified Answer
TG
Tiffany GallantJun 25, 2024
Final Answer :
B
Explanation :
The primary circuit in a typical tandem drive axle, air brake equipped tractor, is designed to actuate the drive axle brakes. This is part of a dual-circuit system where one circuit controls the drive axle brakes and the other controls the front axle brakes, ensuring redundancy and safety.
Learning Objectives
- Discern the specific purposes of various valves within the pneumatic brake system.
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