- Chemical Engineering Basics - Section 1
- Chemical Engineering Basics - Section 2
- Chemical Engineering Basics - Section 3
- Chemical Engineering Basics - Section 4
- Chemical Engineering Basics - Section 5
- Chemical Engineering Basics - Section 6
- Chemical Engineering Basics - Section 7
- Chemical Engineering Basics - Section 8
- Chemical Engineering Basics - Section 9
- Chemical Engineering Basics - Section 10
- Chemical Engineering Basics - Section 11
- Chemical Engineering Basics - Section 12
- Chemical Engineering Basics - Section 13
- Chemical Engineering Basics - Section 14
- Chemical Engineering Basics - Section 15
- Chemical Engineering Basics - Section 16
- Chemical Engineering Basics - Section 17
- Chemical Engineering Basics - Section 18
- Chemical Engineering Basics - Section 19
- Chemical Engineering Basics - Section 20
- Chemical Engineering Basics - Section 21
- Chemical Engineering Basics - Section 22
- Chemical Engineering Basics - Section 23
- Chemical Engineering Basics - Section 24
- Chemical Engineering Basics - Section 25
- Chemical Engineering Basics - Section 26
- Chemical Engineering Basics - Section 27
- Chemical Engineering Basics - Section 28


Chemical Engineering Basics - Engineering
Q1: The refractory lining of the bottom in a basic electric arc furnace is made ofA silica
B alumina
C magnesia
D fireclay
ANS:C - magnesia Magnesia refers to materials primarily composed of magnesium oxide (MgO). It is a refractory material known for its high melting point, excellent thermal shock resistance, and resistance to basic environments. Magnesia-based refractories are widely used in various high-temperature industrial applications, particularly where basic conditions prevail, such as in steelmaking processes like basic oxygen furnaces (BOFs) and electric arc furnaces (EAFs). The properties of magnesia that make it suitable for these applications include:
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