Question
How is a ceramic article made?
✓
Answer
- When clay is kneaded in water, shaped and then fired in a kiln at a temperature of 1000 to 1150 °C, a porous ceramic is formed.
- To overcome the porosity, the fired object is covered with finely ground glass powder suspended in water (glaze) and is then fired again. As a result, the surface of the ceramic becomes shiny and its porosity disappears.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
The accompanying figure shows some electrical appliances connected in a circuit in a house. Answer the following questions. ![]()
https://pg-data.sgp1.digitaloceanspaces.com/chapter_wise/15899/Q5.png" alt="Image" width="340" height="" />By which method are the appliances connected?
Current – b. Increases the resistance in the circuit
Take 5 examples from your surroundings and give an explanation based on Newton’s laws of motion.
What is the difference between sky and space?
If a car, starting from point P, goes to point Q (see figure 1.9) and then returns to point P, how much distance has it travelled and what is its displacement?
Write a note on : Insulators
What are the rules for drawing ray diagrams for the formation of image by spherical mirror?
Which is the most used salt? What is its chemical name? How is it formed?
The working of a rocket depends on Newton’s ………………………. law of motion.
Why are the domestic appliances connected in this way?