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- Question
Percentage content of silica in window glass, is
Options- A. 40 to 45
- B. 50 to 55
- C. 60 to 65
- D. 70 to 75.
- Correct Answer
- 70 to 75.
- 1. A bull nose brick is not used for
Options- A. rounding off sharp corners
- B. pillars
- C. decoration purpose
- D. arches. Discuss
- 2. During smelting process, the combination of fuel in the furnace
Options- A. forms carbon dioxide
- B. carbon dioxide with carbon forms carbon mono-oxide
- C. carbon mono-oxide reacts with Fe2O3 to form iron and liberates CO2
- D. all the above. Discuss
- 3. Granite mainly composed of quartz and felsper particles, is obtained from
Options- A. sedimentary rocks
- B. metamorphic rocks
- C. igneous rocks
- D. all the above. Discuss
- 4. The frog of a brick is normally made on its
Options- A. top face
- B. bottom face
- C. longer face
- D. shorter side. Discuss
- 5. Priming consists of
Options- A. one part of white lead, 8 parts of chalk and four parts of twice boiled linseed oil
- B. 8 parts of white lead, one part of chalk and four parts of twice boiled linseed oil
- C. one part of white lead, 8 parts of chalk and one part of linseed oil
- D. none to these. Discuss
- 6. Pick up the correct statement from the following:
Options- A. Air bubbles in casting produce a dull sound by tapping their surfaces lightly with a hammer
- B. Cupola furnace is used for the manufacture of cast iron
- C. Red short iron is of no value for welding purpose
- D. All the above. Discuss
- 7. The presence of sand in brick earth prevents:
Options- A. cracking of bricks
- B. shrinkage of bricks
- C. warping of bricks
- D. none of these. Discuss
- 8. Dolomite is a lime stone which contains carbonate of magnesia upto
Options- A. 15%
- B. 20%
- C. 25%
- D. 35%
- E. 45%. Discuss
- 9. The property by virtue of which lime sets under water, is known as
Options- A. slacking
- B. setting
- C. hydraulicity
- D. calcining. Discuss
- 10. If the ore impurities is
Options- A. clay, lime stone is used as flux
- B. lime stone, clay is used as flux
- C. quartz, lime stone and argallaceous iron ores are used as flux
- D. All the above. Discuss
Building Materials problems
Search Results
Correct Answer: arches.
Correct Answer: all the above.
Correct Answer: igneous rocks
Correct Answer: top face
Correct Answer: one part of white lead, 8 parts of chalk and four parts of twice boiled linseed oil
Correct Answer: All the above.
Correct Answer: warping of bricks
Correct Answer: 45%.
Correct Answer: hydraulicity
Correct Answer: All the above.
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