Pyrometric cones are designed as slender triangular pyramids to bend under specific temperatures, helping measure kiln heat. Shapes like squares or circles wouldn’t serve the same purpose.
| LIST I | LIST II | ||
|---|---|---|---|
| A | Cones | I | White |
| B | Green ware | II | Blue |
| C | Cobalt Oxide | III | Bend under heat |
| D | Porcelain | IV | Bisque-fired |
| LIST I | LIST II | ||
|---|---|---|---|
| A | Bisque firing | I | Second firing |
| B | Glaze | II | First firing |
| C | Pyrometric cones | III | Temperature measuring |
| D | Pyrometer | IV | Pyramid shape |
Match List-I with List-II 

