Construction Materials Online Test – Paper 2

1. *Impregnating of timber is done to increase

2. The initial and final setting times of quick setting cement are

3. Strength of cement, with storage

4. Sand has minimum volume when:

5. Mica, mainly, is composed of

6. *Plaster of Paris can be obtained from the calcination of

7. The discoloration and formation of white deposits due to the presence of a relatively large proportion of soluble salts in bricks is known as

8. The strength of cement is reduced by.......after 6 months

9. The volume of one bag of cement weighing 50 kg is

10. The amount of local brick required for one m3 masonry (As per NS norms) is

11. Lime having high calcium oxide content, which can set and become hard only in the presence of CO2 from the atmosphere, is known as

12. *Quick lime is obtained from the burning of

13. Marble is found in

14. The strength of RHPC for one day is equal to...day of OPC

15. *Efflorescence in brick is caused due to an excess of:

16. *Lacquer is

17. Which of the following has the lowest crushing strength

18. The advantage of adding pozzolana to lime is

19. The percentage of alumina in good brick earth lies between

20. Compared to ordinary Portland cement, the ultimate strength of pozzolana Portland cement is

21. The amount of insoluble residue & residual retained (OPC) on IS90 sieve

22. *In one day, the height of brick masonry construction should generally not exceed

23. As compared to fat lime, the hydraulic lime sets

24. *The minimum compressive strength of a 2nd class bricks should be

25. In the briquette test, the seven-day tensile strength of good Portland cement should not be less than

26. The maximum percentage of clay content for making good tiles is about

27. The reason for the popularity of bricks as a construction material is that

28. Which of the following statements is not correct?

29. The types of cement used for patch works of pavement are

30. Which of the following is not a hardwood?