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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-9 section-2

Each section contains 100 MCQs on Refractory Technology .
81
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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Answer & Solution
Answer: Option A
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82
SiO2 percentage in firebrick is about
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Answer: Option B
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83
Refractories are dried in the
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Answer: Option B
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84
Refractoriness/fusion points of 'superduty' refractories is __________ °C.
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Answer: Option C
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85
Refractoriness/fusion points of 'superduty' refractories is __________ °C.
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Answer: Option C
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86
An insulating refractory brick should have high porosity and low thermal conductivity. Which of the following is not used for inducing porosity in the insulating refractory bricks during its manufacture?
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Answer: Option C
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87
Which of the following does not occur during firing/burning of refractories?
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Answer: Option C
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88
Rate of slag attack on refractories increases with rise in temperature due to the
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Answer: Option A
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89
__________ of carbon blocks in the hearth of blast furnace helps in avoiding skull formation, when it becomes cold.
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Answer: Option C
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90
Bottom of basic open hearth furnace are constructed of
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Answer: Option A
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