A tractor protection valve:

a) Causes towing vehicle spring brakes to apply in an emergency.
b) Prevents loss of air out of the towing vehicle.
c) Causes the trailer service brakes to apply in an emergency.
d) Prevents air loss from the trailer supply line.

Question

10-01-2025
Engineering

College

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A tractor protection valve:

a) Causes towing vehicle spring brakes to apply in an emergency.
b) Prevents loss of air out of the towing vehicle.
c) Causes the trailer service brakes to apply in an emergency.
d) Prevents air loss from the trailer supply line.

Answer :

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shally23 shally23 · Answer 1 · 2024-06-12T01:10:16-04:00

Final answer:

A tractor protection valve's primary function is to prevent air loss from the trailer supply line to maintain the air supply for the vehicle's braking system; it does not directly apply spring brakes or trailer service brakes in an emergency.

Explanation:

The function of a tractor protection valve is to prevent air loss from the trailer supply line, which in turn helps maintain the air supply necessary for the braking system to function properly. This valve does not directly cause spring brakes to apply in an emergency, nor does it prevent air loss out of the towing vehicle or cause the trailer service brakes to apply. However, if the supply line loses pressure, it does ensure that the trailer brakes are applied, helping to prevent a potential loss of control or runaway trailer situation. The role of the tractor protection valve is crucial in a tractor-trailer combination vehicle, as it protects the air brake system from losing air pressure, thus ensuring the safety and efficiency of the vehicle's braking system.

A tractor protection valve:a) Causes towing vehicle spring brakes to apply in an emergency. b) Prevents loss of air out of the towing vehicle. c) Causes the trailer service brakes to apply in an emergency. d) Prevents air loss from the trailer supply line.

Answer :

Other Questions

A tractor protection valve:

a) Causes towing vehicle spring brakes to apply in an emergency.
b) Prevents loss of air out of the towing vehicle.
c) Causes the trailer service brakes to apply in an emergency.
d) Prevents air loss from the trailer supply line.