Air-Conditioning/Refrigeration , May/June 2014  
Questions: 1 2 3 4 5   Main
General Comments

Question 3

(a)       List the three types of compressor that are commonly used in
                                    refrigeration and air-conditioning industry.
                        (b)       Sketch a reciprocating compressor and label five of its parts.
                        (c)        Explain the function of a condenser.




Most of the candidates provided the required responses to parts (a) and (c) of the questions.  However part (b) was difficult for them.  The required sketch for part (b) is given below:

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