Furnace Technology Regenerators as compared to recuperators for the same duty All of these Store smaller quantity of waste heat Are lighter & compact Involve higher initial cost All of these Store smaller quantity of waste heat Are lighter & compact Involve higher initial cost ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following is the most suitable for preheating combustion air above 650°C ? Ceramic recuperator Metallic recuperator None of these Regenerator Ceramic recuperator Metallic recuperator None of these Regenerator ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In salt bath furnace, heat is transferred to the charge mainly by Conduction None of these Radiation Convection Conduction None of these Radiation Convection ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which is not accomplished in an underfired furnace? Increase in heating capacity/m² of floor space Portection of the periphery of the charge from excessive radiation Elimination of cold spot at the bottom of the charge Reduction in the temperature of furnace gases Increase in heating capacity/m² of floor space Portection of the periphery of the charge from excessive radiation Elimination of cold spot at the bottom of the charge Reduction in the temperature of furnace gases ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Thermal efficiency of a limestone calcination rotary kiln may be around __________ percent. 40 20 65 80 40 20 65 80 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Turndown ratio of a burner gives an idea of the __________ in the furnace. Minimum heat input rate only Range of fuel firing rates Maximum heat input rate only Volume of the combustion chamber Minimum heat input rate only Range of fuel firing rates Maximum heat input rate only Volume of the combustion chamber ANSWER DOWNLOAD EXAMIANS APP
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