Vehicle Movement and Braking Systems
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Vehicle Movement and Braking Systems

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Questions and Answers

What is the primary purpose of identifying the major vehicle systems and their component parts?

  • To communicate with mechanics when describing conditions
  • To make educated decisions about the vehicle you are driving (correct)
  • To identify critical safety issues before they cause injury or damage
  • To determine the maintenance requirements for vehicle systems
  • What is classified as a Class 2 leakage?

  • Seepage of fluid; not enough to form drops
  • No leakage detected
  • Leakage great enough to form drops; drops do not drip (correct)
  • Leakage great enough for drops to drip
  • What is the purpose of an operational test?

  • To write accurate defect reports
  • To identify critical safety issues before they cause injury or damage
  • To determine the maintenance requirements for vehicle systems
  • To observe the actual operation of a component on a fire apparatus (correct)
  • Which of the following is NOT one of the five primary vehicle systems that impact your ability to safely control the apparatus?

    <p>Electrical System</p> Signup and view all the answers

    What is the benefit of being able to identify defects and write accurate defect reports?

    <p>To communicate with mechanics when describing conditions</p> Signup and view all the answers

    What is classified as a Class 3 leakage?

    <p>Leakage great enough for drops to drip</p> Signup and view all the answers

    Why is it important to know the components of the vehicle systems?

    <p>To communicate with mechanics when describing conditions</p> Signup and view all the answers

    What is the purpose of a pre-trip inspection?

    <p>To ensure the operational readiness of the vehicle</p> Signup and view all the answers

    What is classified as a Class 1 leakage?

    <p>Seepage of fluid; not enough to form drops</p> Signup and view all the answers

    What is the benefit of being able to differentiate between normal, monitoring, and out of service conditions?

    <p>To identify critical safety issues before they cause injury or damage</p> Signup and view all the answers

    What is the fifth primary vehicle system that impacts your ability to safely control the apparatus?

    <p>Brakes</p> Signup and view all the answers

    Study Notes

    Vehicle Movement and Control

    • Key to all vehicle movement: Steering, Braking, Accelerating, Condition, and Inflation
    • Tire components: Tread, Shoulder, Inner Plies, Sidewall, and Bead

    Tires - Condition

    • No cuts that expose cords
    • No bulges on the sidewall indicating cord separation
    • Front tires are not re-grooved or recapped
    • Front tires are not mismatched

    Tires - Inflation

    • Improper inflation increases stress on the tire
    • Improper inflation reduces performance in emergency handling
    • Improper inflation increases wear and resistance to rolling, creating heat
    • Check for obvious flatness, leaks, and abnormal bulging
    • Measure tire pressure against manufacturer's recommendations

    Tires - Depth

    • Insufficient tread depth increases stopping distance
    • Insufficient tread depth reduces steering performance
    • Insufficient tread depth fails to channel rain and snow from beneath the tread, leading to hydroplaning
    • DOT minimum tread depths: 4/32 inch for steering axles and 2/32 inch for other axles
    • Check tread depth in multiple areas and grooves

    Tires - Depth Measurement

    • Use a quarter to measure tread depth on steering axles (George Washington's head should be below the tread surface)
    • Use a penny to measure tread depth on non-steering axles (Abraham Lincoln's head should be below the tread surface)

    Other Considerations

    • Steering tires: Check tread patterns match from side to side, and they are the same size and type

    Pre-trip Inspections

    • Identify major vehicle systems and their component parts
    • Determine methods and requirements for pre-trip inspection of vehicle systems
    • Define maintenance requirements for vehicle systems

    Objectives

    • Identify major vehicle systems and their component parts
    • Determine methods and requirements for pre-trip inspection of vehicle systems
    • Define maintenance requirements for vehicle systems
    • Review MCFRS out-of-service criteria for fire department apparatus
    • Review defect reporting and resources for apparatus operators

    Motivation

    • Correctly identify defects and write accurate defect reports
    • Determine and differentiate between normal, monitoring, and out-of-service conditions
    • Identify critical safety issues before they cause injury or damage

    Definitions

    • Leakage: Class 1 (seepage), Class 2 (leakage forming drops), Class 3 (leakage with dripping drops)
    • Operational Test: A test to determine the operational readiness of a component on a fire apparatus

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    Description

    This quiz covers the fundamentals of vehicle movement, including braking systems, steering, and acceleration. It also touches on suspension and tire components.

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