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Refractory Technology

Refractory Technology
Which is an acidic refractory?

Magnesite
Chrome magnesite
Fireclay
Dolomite

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Refractory Technology
Which one expands on heating?

Fireclay bricks
Silica bricks
Both A & B
Neither A nor B

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Refractory Technology
Which furnace consumes maximum refractory annually in an integrated steel plant?

Coke ovens
L.D. converter
Blastfurnace
Soaking pit

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Refractory Technology
__________ bricks are used in the burning zone of a cement rotary kiln.

High alumina
Thoria
Silicon carbide
Fireclay

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Refractory Technology
Bottom of basic open hearth furnace are constructed of

Dead burnt magnesite ramming mass
Porous fireclay bricks
Semi-silica bricks
Silicon carbide bricks

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Refractory Technology
Pyrometric cone equivalent (PCE) value (Segar cone) of 'superduty refractories' is more than 33 which corresponds to a temperature of __________ °C.

1630
1520
1670
1730

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