1. German silver is an alloy of copper, nickel and
2. Which of the following has the highest density and the lowest melting point?
3. Valves in pipe size of 2" and under are normally made of
4. Wrought iron is a suitable material of construction for handling __________ solutions.
5. The preferred material of construction for storage tanks for 98% sulphuric acid is
6. Dilute sulphuric acid is transported in __________ pipes.
7. Silicone rubber is not resistant to the corrosive action of
8. With increase in carbide/graphite ratio in cast iron, its
9. Locomotive boiler tubes are made of __________ alloys.
10. Coke oven regenerators are made of __________ bricks.
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