Q. The minimum percentage of silica, alumina and ferric oxide in lime for white washing, is

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Q. Pick up the correct statement from the following:

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Q. The steel used for the manufacture of rails, is

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Q. Slump test for concrete is carried out, to determine

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Q. Basalt is

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Q. The frog of a brick is normally made on its

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Q. The most important constituent of an oil paint, is

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Q. Granite mainly composed of quartz and felsper particles, is obtained from

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Q. Bullet proof glass is made of thick glass sheet sandwiched by a layer of

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Q. Pig iron obtained from the furnance which is properly provided with fuel at a very high temperature, is called

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Q. Refractory bricks are

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Q. Porcelain is used as :

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Q. Durability of building stone is affected by its

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Q. Magnese steels

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Q. Pick up the metal refractory from the following:

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Q. According to IS 399-1963, the weight of the timber is specified at

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Q. If the ore impurities is

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Q. The plastics prepared from Vinyl resin are

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Q. Chlorite, a green colour mineral is mainly derived from the decomposition of

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Q. During smelting process, the combination of fuel in the furnace

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