Discussion
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- Question
The minimum percentage of silica, alumina and ferric oxide in lime for white washing, is
Options- A. 20
- B. 15
- C. 10
- D. 5
- E. 0.
- Correct Answer
- 0.
- 1. Pick up the correct statement from the following:
Options- 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. The addition of gypsum increases the initial setting time of cement
- E. All the above. Discuss
- 2. According to ISI, bitumen is classified into
Options- A. 2 grades
- B. 4 grades
- C. 6 grades
- D. 8 grades.
- E. 10 grades. Discuss
- 3. Asphalt is obtained from
Options- A. petroleum distillation
- B. bitumen distillation
- C. plastic distillation
- D. none of these. Discuss
- 4. The method of addition polymerization is used for obtaining:
Options- A. polythylene
- B. polypropylene
- C. polyvinylchloride
- D. polystyrene
- E. All of these. Discuss
- 5. Pick up the metal refractory from the following:
Options- A. Molyblendum
- B. Tungsten
- C. Zicronium
- D. All of these. Discuss
- 6. Seasoning of timber is done for
Options- A. increasing moisture content
- B. decreasing moisture content
- C. increasing strength of timber
- D. none to these. Discuss
- 7. Pig iron obtained from the furnance which is properly provided with fuel at a very high temperature, is called
Options- A. Bessemer pig
- B. Grey or foundry pig
- C. White or forge pig
- D. Mottled pig
- E. None of the above. Discuss
- 8. Durability of building stone is affected by its
Options- A. chemical composition
- B. texture
- C. resistance to atmosphere
- D. location in structure
- E. all the above. Discuss
- 9. Basalt is
Options- A. sedimentary rock
- B. metamorphic rock
- C. extrusive igneous rock
- D. intrusive igneous rock. Discuss
- 10. For a 50 kg cement bag water required, is
Options- A. 16.5 litres
- B. 18.5 litres
- C. 20.5 litres
- D. 22.5 litres
- E. 25 litres. Discuss
Building Materials problems
Search Results
Correct Answer: All the above.
Correct Answer: 10 grades.
Correct Answer: petroleum distillation
Correct Answer: All of these.
Correct Answer: All of these.
Correct Answer: decreasing moisture content
Correct Answer: Grey or foundry pig
Correct Answer: all the above.
Correct Answer: extrusive igneous rock
Correct Answer: 22.5 litres
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