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: Function of Fire Clay.
Fire clay is a heat-resistant clay type, primarily utilized for producing bricks and kiln furniture. Its properties render it suitable for high-temperature environments.
Step 2: Evaluation of Alternatives.
- (1) Ball clay: Disregarded. Ball clay is a fine, plastic clay for pottery.
- (2) Slip clay: Disregarded. Slip clay is for casting and decoration; it lacks heat resistance.
- (3) Fire clay: Selected. Fire clay is employed in manufacturing heat-resistant bricks and kiln furniture.
- (4) Kaolin clay: Disregarded. Kaolin is used for porcelain production, not high-temperature applications.
Step 3: Determination.
Consequently, option (3) Fire clay is the accurate choice.