1. Which of the following accentuates clinker-ing troubles on furnace grate burning coal?
2. Ostwald charts are meant for
3. Which one is not an induced draught furnace?
4. In which of the following furnaces, the gases are sucked through the stock bed from below?
5. A refractory wall separating the stock and the source of heat is provided in a
6. Pick out the wrong statement.
7. While the fuel fired furnace can be used upto a maximum temperature of about 1700°C, the electric furnace can be used upto a temperature of about __________ °C.
8. In a furnace, the heat taken by the charge/stock and the heat lost to the furnace structure & flue gases depends on the
9. Very high pressure boilers are usually __________ boilers.
10. Recuperator is
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