Discussion
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- Question
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.
- Correct Answer
- lime stone
- 1. Plywood is made from
Options- A. common timber
- B. bamboo fibre
- C. teak wood only
- D. asbestos sheets. Discuss
- 2. Cast steel is manufactured by
Options- A. Cementation process
- B. Crucible process
- C. Bessemer process
- D. Open hearth process. Discuss
- 3. 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
- 4. Geologically, marble is known as
Options- A. sedimentary rock
- B. igneous rock
- C. metamorphic rock
- D. stratified rock. Discuss
- 5. The rock generally used for roofing, is
Options- A. granite
- B. basalt
- C. slate
- D. pumice. Discuss
- 6. 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
- 7. 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
- 8. Inner part of a timber log surrounding the pitch, is called
Options- A. sapwood
- B. cambium layer
- C. heart wood
- D. none to these. Discuss
- 9. Quick lime (or caustic lime)
Options- A. is obtained by the calcination of pure lime stone
- B. has great affinity to moisture
- C. is amorphous
- D. All the above. Discuss
- 10. Clay and silt content in a good brick earth must be at least
Options- A. 50%
- B. 40%
- C. 30%
- D. 25%
- E. 20%. Discuss
Building Materials problems
Search Results
Correct Answer: teak wood only
Correct Answer: Crucible process
Correct Answer: asbestos powder
Correct Answer: metamorphic rock
Correct Answer: slate
Correct Answer: All the above.
Correct Answer: 3.2 kg
Correct Answer: heart wood
Correct Answer: All the above.
Correct Answer: 50%
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