Q. Which of the following has the lowest electrical resistivity ?

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Q. Dry mix hydraulic compositions of refractory aggregates with suitable bonding materials are called refractory

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Q. Silica bricks have low spalling resistance below 600°C, due to its

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Q. Tar dolomite bricks are used in the

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Q. Pick out the wrong statement.

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Q. Which furnace consumes maximum refractory annually in an integrated steel plant ?

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Q. Lower part of hot metal mixer are lined with __________ bricks.

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Q. Pick out the wrong statement.

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Q. Sillimanite is a __________ refractory.

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Q. High refractorinness of refractory bricks means, that it has a

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Q. Conversion of silica mineral to cristobalite is accompanied by reduction in its

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Q. Chrome magnesite is not used in the

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Q. Which of the following bricks has the most close values of RUL and PCE ?

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Q. Silica refractories are not used in

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Q. Refractory materials are never used in the construction of

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Q. Segar cones are used for the determination of __________ of refractories.

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Q. Fireclay bricks are used in the

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Q. Carbon refractories have very high

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Q. Orlan fibre which is used as a wool sub stitute is

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Q. Neoprene is the trade name of

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