Auto Mechanics Paper 2,May/June 2012  
Questions:   1 2 3 4 5   Main
General Comments

Question 4


  • (i) Identify the component shown in the sketch above.
  • State the function of the component.
  • Name the parts labelled J,  K and   L.
  • Sketch the road signs to show the following:
  • pedestrian crossing;
  • T-junction.
  • State the function of the following units in a vehicle air conditioning system:
  • compressor;
  • evaporator.

Most of the candidates who attempted this question were able to do justice to parts (b) and (c) of the question. The only problematic part was part (a). The correct answer to part (a) is:

  1. the component shown is an injector
  2. the function of an injector is to break up the fuel to the required degree and deliver it into the combustion chamber.
  3. The parts labelled J. K and L are

J          -        spring
K          -        nozzle holder
L          -        spindle.

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