AC/Refrigerator Paper 2 WASSCE (SC), 2017

Question 2

 

 

This questions was centered on trouble shooting used in airconditioning and refrigeration. The students were able to give correct answers to them. i.e.:

 

State four causes of compressor motor burn-out.

 

Observation

           

The expectant answer is:

     High voltage; air and moisture in the system; faulty wiring; extremely low voltage; compressor over heating; wrong wiring.