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Hamad Furnace Technology 02/12/2020
C. Steel coils
D. Steel sheets
- In salt bath furnace, heat is transferred to the charge mainly by __________________?
- A. Conduction B. Convection C. Radiation D. None of these...
- Combustion of furnace oil in a furnace (soaking pit) with preheated combustion air at 400°C results in saving of about __________ percent furnace oil as compared to its combustion with atmospheric air, if the flue gas outlet temperature from the soaking pit is 1200°C ?
- A. 5 B. 60 C. 20 D. 40...
- The rate of scaling of furnace stock depends upon the_________________?
- A. Temperature B. Time C. Nature of atmosphere D. All A., B. and C....
- Temperature of a furnace fired with low calorific value fuel gas (i.e. lean gas) can be increased by______________________?
- A. Preheating the combustion air B. Oxygen enrichment of combustion air C. Preheating the fuel gas D. All A., B. & C....
- Size of the combustion chamber of a furnace depends upon the ___________________?
- A. Heat release rate of the fuel B. Preheat temperature of fuel & air C. Method of mixing the fuel & air D. All A., B. and C....
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