Building Materials Multiple Choice Questions - Set 16 - ObjectiveBooks
Building Materials Multiple Choice Questions - Set 16

Building Materials Multiple Choice Questions - Set 16

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Practice Test: Question Set - 16

1. The frog of the brick in a brick masonry is generally kept on
    (A) Bottom face
    (B) Top face
    (C) Shorter side
    (D) Longer side
2. Pick up the correct statement from the following:
    (A) Roasting is not necessary if iron ore is an oxide
    (B) Impurities float on the molten iron as slag
    (C) The slag contains lime about 45%
    (D) All the above
3. For obtaining vinyl chloride acetate, the method used, is
    (A) Addition polymerization
    (B) Condensation polymerization
    (C) Co-polymerization
    (D) None of these
4. Whitworth compressed steel is obtained when molten steel is subjected to a pressure of
    (A) 5 kg/mm2
    (B) 9 kg/mm2
    (C) 13 kg/mm2
    (D) 15 kg/mm2
5. The normal consistency of ordinary Portland cement is about
    (A) 10 %
    (B) 20 %
    (C) 30 %
    (D) 40 %
6. Lacquer is
    (A) Oil paint
    (B) Distemper
    (C) Spirit varnish
    (D) None to these
7. Plaster of Paris is obtained by calcining
    (A) Bauxite
    (B) Gypsum
    (C) Lime stone
    (D) None of these
8. Pick up the correct statement from the following:
    (A) The lime in excess makes the cement unsound and causes the cement to expand and disintegrate
    (B) The silica in excess makes the cement stronger but its setting time also increases
    (C) The excess amount of alumina weakens the cement
    (D) All the above
9. Priming consists of
    (A) One part of white lead, 8 parts of chalk and four parts of twice boiled linseed oil
    (B) 8 parts of white lead, one part of chalk and four parts of twice boiled linseed oil
    (C) One part of white lead, 8 parts of chalk and one part of linseed oil
    (D) None to these
10. The coefficient of hardness of stones used in road work should be greater than
    (A) 10
    (B) 12
    (C) 15
    (D) 17
11. Manganese steels
    (A) Are non-magnetic
    (B) Possess high electrical resistance
    (C) Possess low coefficient of expansion
    (D) All the above
12. The most commonly used base for timber painting, is
    (A) Red lead
    (B) Zinc white
    (C) White lead
    (D) Titanium white
13. Pick up the correct statement from the following:
    (A) Adding 5% to 6% of moisture content by weight, increases the volume of dry sand from 18% to 38%
    (B) The bulking of fine sand is more than that of coarse sand
    (C) If the percentage content of moisture exceeds 10%, increase in bulk of sand starts increasing
    (D) All the above
14. Pick up the correct statement from the following:
    (A) For thin structures subjected to wetting and drying, the water cement ratio should be 0.45
    (B) For mass concrete structures subjected to wetting and drying, the water ratio should be 0.55
    (C) For thin structures which remain continuously under water, the water-cement ratio by weight should be 0.55
    (D) All the above
15. Quartzite is a
    (A) Metamorphic rock
    (B) Argillaceous rock
    (C) Calcareous rock
    (D) Siliceous rock
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