Civil Engineering :: Building Materials
- Pick up the correct statement from the following:
- Pick up the constituent of good brick earth whose excess causes the raw bricks shrink and warp during drying and burning, from the following:
- Pick up the correct statement from the following:
- Pick up the correct statement from the following:
- Pick up the correct statement from the following:
- Pick up the correct statement from the following:
- Pick up the correct statement from the following:
- Pick up correct statement from the following:
- Pick up the correct statement from the following:
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A.
Alexander Parkes, a Scottish chemist prepared a hard material by mixing camphor and alcohol with nitro cellulose and called it, as Parkesite |
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B.
Dr. L. Bakeland, a Belgian scientist prepared a product known as Bakelite |
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C.
Pollark, an Austrian scientist prepared a substance from urea and formaldehyde and called it Plastic |
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D.
All the above |
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A.
Blistering may be cured by applying water paint finished with oil paint dried with a little copal varnish |
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B.
Cracked paints may be cured by removing paint and giving a fresh coat of paint |
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C.
Crawling paints may be cured by sand preparing the surface and giving a fresh coat with plenty of turps |
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D.
All the above |
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A.
For thin structures subjected to wetting and drying, the water cement ratio should be 0.45 |
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B.
For mass concrete structures subjected to wetting and drying, the water ratio should be 0.55 |
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C.
For thin structures which remain continuously under water, the water-cement ratio by weight should be 0.55 |
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D.
All the above |