AC/Refrigerator Paper 2 WASSCE (SC), 2017

Question 4

 

 

Question four dwelt on installation, ducting and trunking this was more of practical knowledge of the subject. The students were able to answer the questions correctly. i.e.:

 

List four types of ducting materials.

 

Observation

 

           

The expected answer is:

   Galvanized iron; aluminium sheet metal; black steel; copper.