Building Materials problems
- 1. The rocks in which argil (or clay) predominates, are called
Options- A. sillicious rocks
- B. argillaceous rocks
- C. calcareous rocks
- D. igneous rocks. Discuss
Correct Answer: argillaceous rocks
- 2. Pick up the correct statement from the following:
Options- A. soft stones are required for carving
- B. light stones are required for arches
- C. hard stones are required to stand high pressure
- D. All the above. Discuss
Correct Answer: All the above.
- 3. The rock generally used for roofing, is
Options- A. granite
- B. basalt
- C. slate
- D. pumice. Discuss
Correct Answer: slate
- 4. Geologically, marble is known as
Options- A. sedimentary rock
- B. igneous rock
- C. metamorphic rock
- D. stratified rock. Discuss
Correct Answer: metamorphic rock
- 5. The filler used in plastic bitumen, is
Options- A. shale powder
- B. talc powder
- C. asbestos powder
- D. plastic powder
- E. none of these. Discuss
Correct Answer: asbestos powder
- 6. Cast steel is manufactured by
Options- A. Cementation process
- B. Crucible process
- C. Bessemer process
- D. Open hearth process. Discuss
Correct Answer: Crucible process
- 7. Plywood is made from
Options- A. common timber
- B. bamboo fibre
- C. teak wood only
- D. asbestos sheets. Discuss
Correct Answer: teak wood only
- 8. If the iron ore contains clay as an impurity, the flux added during calcination, is
Options- A. clay
- B. lime stone
- C. argillaceous iron ore
- D. all the above. Discuss
Correct Answer: lime stone
- 9. Pick up the correct statement regarding low heat cement from the following:
Options- A. It possesses less compressive strength
- B. Its initial setting time is about one hour
- C. Its final setting time is about 10 hours
- D. Its mainly used for mass concrete work
- E. All the above. Discuss
Correct Answer: All the above.
- 10. For slaking of 10 kg of CaO, the theoretical amount of water is
Options- A. 2.2 kg
- B. 1.5 kg
- C. 3.2 kg
- D. None of these. Discuss
Correct Answer: 3.2 kg
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