MCQs: A steel member used in the furnace construction to take the thrust of the brickwork is called___________________?
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MCQs: Hollow refractory bricks are made by___________________?
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MCQs: Refractoriness/fusion points of ‘Superduty’ refractories is _______________ °C?
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MCQs: With increase in the porosity, thermal spalling resistance of fireclay brick___________________?
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MCQs: Beryllia (which is used in making crucibles for melting uranium & thorium) is superior to alumina in all respects for high temperature (> 1900°C ) use, except ?
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MCQs: Quartz is___________________?
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MCQs: Water content in ground refractory material to be shaped into bricks by hand moulding is about ______________ percent?
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MCQs: Maximum alumina content in high alumina refractory can be as high as _____________ percent?
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MCQs: Panel test determines the _____________ of refractories?
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MCQs: Chemically, mullite refractories is____________________?
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MCQs: Presence of MgO in alumino-silicate refractories _______________ its refractoriness?
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MCQs: Fireclay bricks are not used in the _________________?
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MCQs: High porosity refractory bricks have _______________?
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MCQs: Magnesite refractories are generally not used in the___________________?
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MCQs: Thermal diffusivity of a refractory brick is high, when its ____________ is high?
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MCQs: With increase in the alumina content, the refractoriness of high alumina refractories_______________?
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MCQs: Test piece for determination of RUL of a refractory is heated in a/an____________________?
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MCQs: Magnesite refractories are used for the construction of those furnaces, which are________________?
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MCQs: Outer combustion chamber of blast furnace stove is lined with _____________ bricks?
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MCQs: Roof of a basic electric furnace is made of _____________ bricks?
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