Large tonnage of refractory bricks are dried in a_____________________?
Correct answer: C. Tunnel kiln
- A. Shaft furnace
- B. Rotary hearth furnace
- C. Tunnel kiln
- D. Muffle furnace
Explanation
A tunnel kiln provides continuous, controlled preheating and drying of large quantities of refractory bricks as they move through different temperature zones. Shaft, muffle, and rotary-hearth furnaces are less suitable for this large-scale brick-drying duty.
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