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- Question
For melting one tonne of cast iron
Options- A. 700 m3 air is required
- B. 20 kg limestone is required
- C. one quintal coke is required
- D. all the above.
- Correct Answer
- all the above.
- 1. In a mortar, the binding material is
Options- A. cement
- B. sand
- C. surkhi
- D. cinder. Discuss
- 2. Wrought iron contains carbon about
Options- A. 1.5% to 5.5%
- B. 0.5% to 1.75%
- C. 0.1% to 0.25%
- D. none to these. Discuss
- 3. Quartzite is a
Options- A. metamorphic rock
- B. argillaceous rock
- C. calcareous rock
- D. silicious rock. Discuss
- 4. Pick up the correct statement from the following:
Options- A. The theory of formation of concrete is based on the phenomena of formation of voids
- B. The bulking of sand is taken into account while volumetric proportioning of the aggregates
- C. The dry sand and the sand completely flooded with water, have practically the same volume
- D. The expansion and contraction joints are provided if concrete structures exceed 12 m in length
- E. All the above. Discuss
- 5. Polymerization helps to improve the property of
Options- A. strength
- B. rigidity
- C. elasticity
- D. all of these. Discuss
- 6. The variety of pig iron used for the manufacture of steel by Bessemer process, is
Options- A. Bessemer pig
- B. Grey pig
- C. White forge pig
- D. Mottled pig. Discuss
Building Materials problems
Search Results
Correct Answer: cement
Correct Answer: 0.1% to 0.25%
Correct Answer: silicious rock.
Correct Answer: All the above.
Correct Answer: all of these.
Correct Answer: Bessemer pig
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