Proportioning valves are being discussed. Technician A says inertia and momentum cause weight to shift forward during braking. Technician B says the weight shift is proportional to the braking force and rate of deceleration. Who is correct?

Question

Quizplus · Accepted Answer

Both technicians are correct. Inertia and momentum cause weight to shift forward during braking, and this weight shift is proportional to the braking force and rate of deceleration. Proportioning valves are designed to help maintain maximum braking efficiency by maintaining a proper balance of front and rear brake pressure during hard stops.

Proportioning Valves Are Being Discussed