Building Materials problems
- 1. The rocks having alumina or clay as their major constituents, are known as
Options- A. siliceous rocks
- B. argillaceous rocks
- C. calcareous rocks
- D. sedimentary rocks
- E. igneous rocks. Discuss
Correct Answer: argillaceous rocks
- 2. The fire clay contains pure
Options- A. lime
- B. oxide of iron
- C. hydrated aluminium silicate
- D. magnesium. Discuss
Correct Answer: hydrated aluminium silicate
- 3. A ferrous metal is
Options- A. cast iron
- B. wrought iron
- C. steel
- D. all the above. Discuss
Correct Answer: all the above.
- 4. Blister steel
Options- A. is obtained by cementation process
- B. is full of fissures and cavities
- C. can not be forged
- D. can be easily welded
- E. all the above. Discuss
Correct Answer: all the above.
- 5. When a brick is immersed in water for 24 hours and then dried, if
Options- A. no grey or white deposits appear on the surface, the brick is free from soluble salts
- B. 10 per cent surface is covered with grey or white deposits, the brick has slight efflorescence
- C. 50 per cent surface is covered with grey or white deposits, the brick has serious efflorescence
- D. All the above. Discuss
Correct Answer: All the above.
- 6. The base material for distemper, is
Options- A. chalk
- B. lime
- C. lime putty
- D. cement wash. Discuss
Correct Answer: chalk
- 7. Pick up the correct statement from the following:
Options- 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. Impact test is done to determine toughness of a stone
- E. All the above. Discuss
Correct Answer: All the above.
- 8. Distemper is
Options- A. a paint consisting of powdered chalk, pigments, and water
- B. a water proofing agent
- C. a paint consisting of coloured cement and water
- D. a drying agent. Discuss
Correct Answer: a paint consisting of powdered chalk, pigments, and water
- 9. The most important constituent of varnish, is
Options- A. drier
- B. solvent
- C. resin
- D. all the above. Discuss
Correct Answer: all the above.
- 10. Pick up the correct statement from the following:
Options- 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
- E. None of these. Discuss
Correct Answer: Lime is available by calcining calcium carbonate at 900°C
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