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Q: Varieties of fire bricks include:
  • A. Acidic and Basic Bricks
  • B. Acidic, Basic and Neutral Bricks
  • C. Acidic Bricks
  • D. None of these
Correct Answer: Option B - Types of fire bricks– Fire bricks are classified majority into three types– (i) Acidic fire brick:- Silica bricks (ii) Basic fire brick:- Magnesia bricks (iii) Neutral fire brick:- Chrome bricks
B. Types of fire bricks– Fire bricks are classified majority into three types– (i) Acidic fire brick:- Silica bricks (ii) Basic fire brick:- Magnesia bricks (iii) Neutral fire brick:- Chrome bricks

Explanations:

Types of fire bricks– Fire bricks are classified majority into three types– (i) Acidic fire brick:- Silica bricks (ii) Basic fire brick:- Magnesia bricks (iii) Neutral fire brick:- Chrome bricks