Building Materials, Third Edition

IVH f2w—
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27. Which one of the following statement regarding the cement fineness is NOT correct?
    (a) Fine cement is more liable to suffer from shrinkage craking than a coarse cement.
    (b) Fine cement will show faster rate of hardening than coarse cement.
    (c) Fine cement shows faster rate of heat evolution and total quantity of heat evolved is
    much larger than coarse cement.
    (d) Fine cement shows the same setting time as coarse cement.


28. For marine works, the best suited cement is
    (a) low heat Portland cement (b) rapid hardening cement
    (c) ordinary Portland cement (d) blast furnace slag cement


29. Match List-I with List-II and select the correct answer using the codes given below the lists:
    List-I List-II
    (Apparatus)(Property)
    A. Vicat’s needless 1. Setting time
    B. Michaeli’s compound lever 2. Specific surface
    C. Le-Chatelier ’s apparatus 3. Tensile strength
    D. Turbidimeter 4. Soundness
    Codes:
    (a)AB CD (b)AB CD
    1234 1342
    (c)AB CD (d)AB CD
    2431 3412


30. Match List-I with List-II and select the correct answer using the codes given below the
    lists:
    List-I List-II
    (Type of cement)(Uses)
    A. Rapid hardening 1. Refractory concrete in industries
    B. Quick setting 2. Dams
    C. High Alumina 3. Concrete under water
    D. Low heat 4. Concrete for cold weather
    5. Repair of bridges
    Codes:
    (a)AB CD (b)AB CD
    1354 5312
    (c)AB CD (d)AB CD
    5132 3254

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1. (d) 2. (a) 3. (c) 4. (c) 5. (d) 6. (b)


2. (d) 8. (b) 9. (d) 10. (a) 11. (c) 12. (c)


3. (a) 14. (b) 15. (c) 16. (c) 17. (b) 18. (b)


4. (c) 20. (d) 21. (b) 22. (d) 23. (b) 24. (d)


5. (c) 26. (d) 27. (c) 28. (d) 29. (b) 30. (b)