Question

Which type of clay is often used to make the insulated bricks and kiln furniture?

• A. Ball clay
• B. Slip clay
• C. Fire clay
• D. Kaolin clay

Hint:

Fire clay is essential for high-temperature applications such as kiln furniture and insulated bricks due to its heat resistance.

Answer 1

The Correct Option is C

Step 1: Understanding the Use of Fire Clay.
Fire clay is a type of clay that is specifically known for its high heat resistance and is commonly used for making bricks and kiln furniture. This makes it ideal for use in environments exposed to high temperatures.
Step 2: Analysis of options.
- (1) Ball clay: Incorrect, ball clay is a fine-grained, highly plastic clay used for making pottery.
- (2) Slip clay: Incorrect, slip clay is used for casting and decorating but is not heat-resistant.
- (3) Fire clay: Correct, fire clay is used for making heat-resistant bricks and kiln furniture.
- (4) Kaolin clay: Incorrect, kaolin is used for making porcelain, not for heat-resistant applications.
Step 3: Conclusion.
Thus, the correct answer is (3) Fire clay.