Question 1
The question required students to demonstrate their knowledge of safety. Majority of the candidates were able to do so for a score of 15/15. i.e.:
State three safety requirements for storage of refrigerant.
Observation
The expected answer is:
Refrigerants should be supplied in large pressure vessels; it must be stored in cold and well ventilated space; it should be stored far away from boiler rooms; brazing torches or welding sets must not be rolled on its sides cause valves can be damaged; refrigerant cylinder must be tagged for easy identification.