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Self supporting arches for furnace roofs can be fabricated using silica bricks but not using magnesia bricks. Why?
- a)Silica has a significantly lower thermal expansion coefficient than magnesia at high temperatures.
- b)Silica has a significantly higher thermal conductivity than magnesia at high temperatures.
- c)Silica has a significantly lower melting point than magnesia.
- d)Silica is significantly more acidic than magnesia.
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Self supporting arches for furnace roofs can be fabricated using silic...
There are high temperatures inside a furnace if we use magnesia brics it causes expansion which will develop cracks in the furnace so we have to use bricks having low coeff of thermal expansion so silica bricks are a good option as they have lower thermal expansion than magnesia bricks
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Self supporting arches for furnace roofs can be fabricated using silic...
Thermal Expansion Coefficient:
- Silica bricks have a significantly lower thermal expansion coefficient than magnesia bricks at high temperatures.
- This means that silica bricks are less likely to deform or crack under the stress of high temperatures compared to magnesia bricks.
Explanation:
- When a furnace is heated, the materials used to construct the roof undergo thermal expansion.
- Silica bricks, with their lower thermal expansion coefficient, can better withstand this expansion without deforming or cracking.
- On the other hand, magnesia bricks, with a higher thermal expansion coefficient, are more prone to deformation and cracking under the same conditions.
Significance:
- The use of silica bricks for self-supporting arches in furnace roofs ensures the structural integrity of the roof at high temperatures.
- This choice is crucial for the safety and efficiency of the furnace operation.
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Self supporting arches for furnace roofs can be fabricated using silica bricks but not using magnesia bricks. Why?a)Silica has a significantly lower thermal expansion coefficient than magnesia at high temperatures.b)Silica has a significantly higher thermal conductivity than magnesia at high temperatures.c)Silica has a significantly lower melting point than magnesia.d)Silica is significantly more acidic than magnesia.Correct answer is option 'A'. Can you explain this answer?
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Self supporting arches for furnace roofs can be fabricated using silica bricks but not using magnesia bricks. Why?a)Silica has a significantly lower thermal expansion coefficient than magnesia at high temperatures.b)Silica has a significantly higher thermal conductivity than magnesia at high temperatures.c)Silica has a significantly lower melting point than magnesia.d)Silica is significantly more acidic than magnesia.Correct answer is option 'A'. Can you explain this answer? for GATE 2025 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about Self supporting arches for furnace roofs can be fabricated using silica bricks but not using magnesia bricks. Why?a)Silica has a significantly lower thermal expansion coefficient than magnesia at high temperatures.b)Silica has a significantly higher thermal conductivity than magnesia at high temperatures.c)Silica has a significantly lower melting point than magnesia.d)Silica is significantly more acidic than magnesia.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for GATE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Self supporting arches for furnace roofs can be fabricated using silica bricks but not using magnesia bricks. Why?a)Silica has a significantly lower thermal expansion coefficient than magnesia at high temperatures.b)Silica has a significantly higher thermal conductivity than magnesia at high temperatures.c)Silica has a significantly lower melting point than magnesia.d)Silica is significantly more acidic than magnesia.Correct answer is option 'A'. Can you explain this answer?.
Self supporting arches for furnace roofs can be fabricated using silica bricks but not using magnesia bricks. Why?a)Silica has a significantly lower thermal expansion coefficient than magnesia at high temperatures.b)Silica has a significantly higher thermal conductivity than magnesia at high temperatures.c)Silica has a significantly lower melting point than magnesia.d)Silica is significantly more acidic than magnesia.Correct answer is option 'A'. Can you explain this answer? for GATE 2025 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about Self supporting arches for furnace roofs can be fabricated using silica bricks but not using magnesia bricks. Why?a)Silica has a significantly lower thermal expansion coefficient than magnesia at high temperatures.b)Silica has a significantly higher thermal conductivity than magnesia at high temperatures.c)Silica has a significantly lower melting point than magnesia.d)Silica is significantly more acidic than magnesia.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for GATE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Self supporting arches for furnace roofs can be fabricated using silica bricks but not using magnesia bricks. Why?a)Silica has a significantly lower thermal expansion coefficient than magnesia at high temperatures.b)Silica has a significantly higher thermal conductivity than magnesia at high temperatures.c)Silica has a significantly lower melting point than magnesia.d)Silica is significantly more acidic than magnesia.Correct answer is option 'A'. Can you explain this answer?.
Solutions for Self supporting arches for furnace roofs can be fabricated using silica bricks but not using magnesia bricks. Why?a)Silica has a significantly lower thermal expansion coefficient than magnesia at high temperatures.b)Silica has a significantly higher thermal conductivity than magnesia at high temperatures.c)Silica has a significantly lower melting point than magnesia.d)Silica is significantly more acidic than magnesia.Correct answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for GATE.
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Self supporting arches for furnace roofs can be fabricated using silica bricks but not using magnesia bricks. Why?a)Silica has a significantly lower thermal expansion coefficient than magnesia at high temperatures.b)Silica has a significantly higher thermal conductivity than magnesia at high temperatures.c)Silica has a significantly lower melting point than magnesia.d)Silica is significantly more acidic than magnesia.Correct answer is option 'A'. Can you explain this answer?, a detailed solution for Self supporting arches for furnace roofs can be fabricated using silica bricks but not using magnesia bricks. Why?a)Silica has a significantly lower thermal expansion coefficient than magnesia at high temperatures.b)Silica has a significantly higher thermal conductivity than magnesia at high temperatures.c)Silica has a significantly lower melting point than magnesia.d)Silica is significantly more acidic than magnesia.Correct answer is option 'A'. Can you explain this answer? has been provided alongside types of Self supporting arches for furnace roofs can be fabricated using silica bricks but not using magnesia bricks. Why?a)Silica has a significantly lower thermal expansion coefficient than magnesia at high temperatures.b)Silica has a significantly higher thermal conductivity than magnesia at high temperatures.c)Silica has a significantly lower melting point than magnesia.d)Silica is significantly more acidic than magnesia.Correct answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
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