Vehicle Technology notes KNEC Diploma


This module unit designed to equip the trainees with knowledge, skills and attitudes to acquire Competence in routine vehicle service.  After completing this module, the trainee is capable of working in a garage or service station.  It targets persons who are interested in gaining basic mechanics skills.  The module forms a basis for all other modules to be covered in the course.



  • Safety rules
  • First aid
  • Fire classes
  • Fire extinguishers:
  • Flammable gases and
  • materials
  • Safe working procedures.
  • Factories and workplaces Act

Vehicle Layout

  • The major units
  • Layouts
  • Types of vehicle drives
  • Engine positions
  • Types of chassis

Transmission System

  • Types of gear construction
  • Types of gearboxes
  • Construction and operation of various types of vehicle gearboxes
  • Gearbox lubricants
  • Types of clutch pressure plates
  • Types of clutch discs
  • Types of clutches
  • Construction and operation of various types of clutches
  • Clutch actuating mechanisms
  • Types of final drives
  • Construction and operation of final drive units
  • Construction and operation of the differential unit
  • Construction and operation of rear axle
  • Types of drive shafts
  • Construction and operation of drive shafts
  • Types of constant velocity (c.v)joints
  • Construction and operation of constant velocity joints

Wheels and Tyres

  • Function of wheels.
  • Types of wheels and tyres.
  • Types of rims
  • Tread patterns
  • Tyre pressures
  • Wheel balancing
  • Tyre and tube repairs

Steering System

  • Function of a steering system
  • Construction and operation of conventional steering system
  • Steering system layouts
  • Steering gearboxes
  • Power assisted steering
  • Power steering

Suspension system

  • Types of suspension systems
  • Types of suspension units
  • Air suspension
  • Hydraulic suspension
  • Rubber suspension

Braking System

  • Layout of the braking system
  • Types of brakes
  • Brake actuating mechanisms
  • Power brakes
  • Auxiliary brakes
  • Types and properties of brake fluids
  • Anti – lock braking system (ABS)
  • Anti-jacknifing mechanism


  • Model town board
  • Road signs
  • First aid
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10 thoughts on “Vehicle Technology notes KNEC Diploma”

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