Construction and Building Materials Practice Test 8

1. Dust of pure _________ is used to cover the article to be treated for corrosion in the method of sherardising.

2. The ____________ of suitable type may be used to distribute air inside the room.

3. Which of the following statements is not true about white cast iron?

4. Duplex process, used to manufacture steel, is a combination of which of the following two processes?

5. Low brass contains 80% copper and 20% tin.

6. The composition of delta metal is _________

7. Which of the following operations involved in mechanical treatment of steel is used to make wires and rods?

8. In a chilled water system, the refrigerant is used to cool the air directly while in the direct expansion system, a secondary medium like water is used to cool the air.

9. Small amounts of _____________ and __________ improve the quality of Bessemer pig.

10. Nickel silver is also known as _________