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Refractory Technology MCQ Questions & Answers | Chemical Engineering

Learn Refractory Technology MCQ questions & answers are available for a Chemical Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Refractory Technology MCQ question is the important chapter for a Chemical Engineering and GATE students. Page-5 section-1

Each section contains 100 MCQs on Refractory Technology .
41
Pyrometric cone equivalent (PCE) value (Segar cone) of 'superduty refractories' is more than 33 which corresponds to a temperature of __________ °C.
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Answer & Solution
Answer: Option D
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42
Spalling of silica bricks occurs due to abrupt volume changes, when it is cooled below a temperature of __________ °C.
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Answer: Option C
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43
Spalling of silica bricks occurs due to abrupt volume changes, when it is cooled below a temperature of __________ °C.
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Answer & Solution
Answer: Option C
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44
PCE value (Segar cone) of superduty refractories is more than 33, which is equivalent to a temperature of __________ °C.
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Answer & Solution
Answer: Option D
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45
Magnesite bricks have poor resistance to attack by __________ slag.
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Answer: Option C
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46
__________ bricks should not be used in oxidising atmosphere.
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Answer: Option B
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47
__________ bricks are used in the burning zone of a cement rotary kiln.
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Answer: Option A
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48
High thermal conductivity of a refractory material is not important, when it is to be used in the
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Answer: Option C
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49
Thermal diffusivity of a refractory brick is high, when its __________ is high.
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Answer: Option C
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50
Upper portion of hot metal mixer are lined with mullite bricks, which helps in resisting the
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Answer: Option A
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