Heavy Truck Brakes and Braking
Systems – Study Guide with Questions
and Correct Answers
Description:
This document is a comprehensive study guide covering heavy
truck brake systems, including air brakes, hydraulic brakes, ABS,
hydro-boost systems, and brake diagnostics. It presents questions
with correct answers on system components, operation
principles, troubleshooting, and safety checks. The material is
structured to support exam preparation and practical training for
students or professionals working with heavy truck braking
systems.
Questions and Answers:
Anti-lock brakes (ABS) -Answer:-help prevent accidents and
improve vehicle control by preventing wheels from locking up
during braking
Stability Control System -Answer:-Prevents rollovers and tipping
caused by cornering or sudden changes in direction
, Brake Line Flares (Types) -Answer:-bubble flares (also known as
DIN or ISO flares), whereas in the U.S. double flares (also known
as SAE or Inverted flares) are more common.
Bubble Flares (DIN or ISO flares) -Answer:-looks like buttons (90
degree)
Double Flares (SAE or inverted flares) -Answer:-looks like a
funnel (45 degree)
Hydro-Boost Systems -Answer:-uses hydraulic pressure from
power steering system to provide the driver assist in applying the
brakes
Hydraulic Brake Line Material -Answer:-made using plated or
coated mild steel tubing
Air Brake hand valve -Answer:-aka spike, a valve that allows the
air brake system to control the brakes of a trailer its pulling,
independent of tractor, can be manual or automatic, the amount
of pressure depends on how far the valve is opened
Systems – Study Guide with Questions
and Correct Answers
Description:
This document is a comprehensive study guide covering heavy
truck brake systems, including air brakes, hydraulic brakes, ABS,
hydro-boost systems, and brake diagnostics. It presents questions
with correct answers on system components, operation
principles, troubleshooting, and safety checks. The material is
structured to support exam preparation and practical training for
students or professionals working with heavy truck braking
systems.
Questions and Answers:
Anti-lock brakes (ABS) -Answer:-help prevent accidents and
improve vehicle control by preventing wheels from locking up
during braking
Stability Control System -Answer:-Prevents rollovers and tipping
caused by cornering or sudden changes in direction
, Brake Line Flares (Types) -Answer:-bubble flares (also known as
DIN or ISO flares), whereas in the U.S. double flares (also known
as SAE or Inverted flares) are more common.
Bubble Flares (DIN or ISO flares) -Answer:-looks like buttons (90
degree)
Double Flares (SAE or inverted flares) -Answer:-looks like a
funnel (45 degree)
Hydro-Boost Systems -Answer:-uses hydraulic pressure from
power steering system to provide the driver assist in applying the
brakes
Hydraulic Brake Line Material -Answer:-made using plated or
coated mild steel tubing
Air Brake hand valve -Answer:-aka spike, a valve that allows the
air brake system to control the brakes of a trailer its pulling,
independent of tractor, can be manual or automatic, the amount
of pressure depends on how far the valve is opened
