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Refractory Technology

Refractory Technology
The largest consumer of refractories is the __________ industry.

Power
Fertiliser
Metallurgical
Cement

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Refractory Technology
Permeability of bricks is a measure of the

Refractoriness
Expansion during heating
Melting point
Rate at which a fluid will pass through the pores

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Refractory Technology
Maximum water percentage in refractory mix meant for hand moulding may be as high as __________ percent.

7-12
2-3
14-20
5-7

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Refractory Technology
Which is not a basic refractory?

Chrome magnesite
Silicon carbide
Dolomite
Magnesite

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Refractory Technology
Chrome magnesite brick is not used for lining the

Hearth of soaking pits
Coke oven regenerator
Burning zone of limestone rotary kilns
Bottom hearth of reheating furnace

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Refractory Technology
Machine moulding of dry mixture of refractories requires a pressure of the order of __________ kg/cm².

500
1000
10
100

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