Q. When ammonia is the refrigerant, which of the following will be be the material for pipe through which refrigerant flows? (Solved)
1. Cast steel or wrought iron
2. Copper
3. PVC
4. Brass
5. Aluminium
- a. Cast steel or wrought iron
1. Cast steel or wrought iron
2. Copper
3. PVC
4. Brass
5. Aluminium