Practice question · Multiple choice
Why do pyrometric cones remain in use alongside electronic temperature control?
Hints
- Ask what a thermocouple measures and where.
- Ceramics responds to temperature integrated over time, at the ware's own position.
Show the answer
C. A cone measures heat work, temperature and time together, as the ware actually experienced it
Why
Because ceramics responds to heat work rather than peak temperature, and a thermocouple reads one temperature at one point in the chamber. A cone is formulated to bend at a given amount of heat work and sits with the ware, so it reports what the pieces actually experienced.
Practise Firing
The app has 4 more questions on this lesson, and keeps your place in the course. Sculpture I is free to start.
More questions on Firing
- Which are true of quartz inversion at about 573 degrees?
- The same glaze recipe produces the same colour regardless of kiln atmosphere.
- Sort each statement by whether it concerns the BISQUE firing or the GLAZE firing.
- Complete the account of firing.
- A kiln firing is defined as an entire schedule rather than reaching a single peak temperature. What practical…
- At approximately what temperature, in degrees Celsius, does quartz inversion occur?
- Match each firing atmosphere or concept to what it means.
- Arrange the stages of a firing schedule in order.
- A body bisque-fired too high may fail to absorb glaze properly.