Building Materials Questions and Answers - Set 15 - ObjectiveBooks
Building Materials Questions and Answers - Set 15

Building Materials Questions and Answers - Set 15

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Practice Test: Question Set - 15

1. Formula for quick lime, is
    (A) CaCO3
    (B) Ca(OH)2
    (C) CO3CO2
    (D) None to these
2. The process of decarbonising the pig iron completely and then adding proper percentage of carbon for manufacturing steel, is called
    (A) Cementation process
    (B) Crucible process
    (C) Bessemer process
    (D) Open hearth process
3. The maximum quantity of calcium chloride used as an accelerator in cement in percentage by weight of cement is
    (A) 1
    (B) 2
    (C) 3
    (D) 4
4. Which one of the following polymers is obtained from condensation polymerization?
    (A) Phenol formaldehyde
    (B) Carbamide
    (C) Melamine-formaldehyde
    (D) All of these
5. The portion of a brick cut to form angles other than right angles in plan, is known as
    (A) Queen closer
    (B) King closer
    (C) Closer
    (D) Squint brick
6. The moisture content in a well seasoned timber is
    (A) 4 % to 6 %
    (B) 10 % to 12 %
    (C) 15 % to 20 %
    (D) 100 %
7. The cement becomes unsound by the presence of excess
    (A) Sulphur
    (B) Magnesia
    (C) Lime
    (D) All of these
8. For one cubic metre of brick masonry, number of bricks required, is
    (A) 400
    (B) 425
    (C) 450
    (D) 500
9. Rapid hardening cement contains
    (A) Tri-calcium silicate
    (B) Tri-calcium aluminate
    (C) Tetra-calcium alumino-ferrite
    (D) Di-calcium silicate
10. In order of increasing percentage of silica, the correct sequence is
    (A) Sandy clay, calcareous clay, pure clay
    (B) Calcareous clay, pure clay, sandy clay
    (C) Pure clay, sandy clay, calcareous clay
    (D) None of these
11. Which of the following timbers is suitable for making sports goods?
    (A) Mulberry
    (B) Mahogany
    (C) Sal
    (D) Deodar
12. The stones obtained by blasting are used as
    (A) Ballast in railways
    (B) Aggregates for concrete
    (C) Road metal
    (D) All the above
13. Pick up the correct statement from the following:
    (A) Acid test is done to find out the weathering quality of stones
    (B) Attrition test is done to find out the rate of wear of stones which are used in road construction
    (C) Crushing test is done to find out the compressive strength of the stone
    (D) All the above
14. Mastic asphalt is
    (A) Water proof
    (B) Fire proof
    (C) Elastic
    (D) All the above
15. Pick up the correct statement from the following:
    (A) Lime is available in Free State
    (B) Lime is available by dissolving calcium carbonate in water
    (C) Lime is available by calcining calcium carbonate at 900°C
    (D) Lime is nothing but calcium chloride
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