Q1. In the tempering and normalizing, demonstrate the significance of the gas-fired pit furnace.
Q2. Is it true that the gas used in the pit latrine resembles gun powder?
Q3. Justify; when the gas pit furnace is used, the charge undergoes a significant compositional change.
Q4. How does the blower accelerate metal cooling in the gas pit furnace?
Q5. The gas furnace is powered by ________. Describe
Q6. Indicate false; Long heating tubes are where gas pit furnaces are located.
Q7. Explain the connection between the permanent mold and the pit furnace.
Q8. Describe the sequence of events that leads to the complete combustion of coal in the pit furnace.
Q9. Describe the applications of ceramic fiber as insulation in pit furnaces.
Q10. Justify; in a pit furnace, high atmosphere circulation is achieved.