REFRIGERANT AND INSULATION - Practice Mode

1) How to prevent the small pieces of glass wool affecting the eyes?

Wearing goggles Wearing gloves Using mask Using shoes

Correct Answer: Wearing goggles

2) What is the advantage of universal colour coding of refrigerant cylinders?

Easy to identify Make good appearance Prevent corrosion on cylinder Provide extra strength to cylinder

Correct Answer: Easy to identify

3) What is the name of process that changes the used refrigerant to new product?

Recover Recycle Reclaim Manufacture

Correct Answer: Reclaim

4) Why HCFC 22 refrigerant is recycled?

Decrease the cost of production Make use of the same lubricant Reduce ODP and GWP of environment Increase the efficiency of RAC systems

Correct Answer: Reduce ODP and GWP of environment

Explanation:

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5) How to safe guard the hands while handling glass wool?

Wearing goggles Wearing gloves Using mask Using shoes

Correct Answer: Wearing gloves

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