Refractory Technology MCQs
Practice free Refractory Technology multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 215 questions — no login required.
Question 91easy
A steel member used in the furnace construction to take the thrust of the brickwork is called
Question 92easy
Silica refractories are not used in
Question 93easy
Thermal diffusivity of a refractory brick is high, when its __________ is high.
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Question 94easy
Which property is important for bricks used in the combustion chamber & dome of blast furnace stoves?
Question 95easy
Mullite is chemically represented by
Question 96easy
Addition of grog in fireclay brick during its manufacture is advantageous, because it results in
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Question 97easy
Fireclay bricks is not used for lining the
Question 98easy
Lower wall courses of soaking pits are made of __________ bricks to avoid the action of molten slag & scale.
Question 99easy
Except __________ , all other refractories are bad conductors of electricity (i.e, have low electrical conductivity).