Furnace Technology Calcination of limestone to produce lime is done in a __________ kiln. Vertical shaft Tunnel Rotary Both B and C Vertical shaft Tunnel Rotary Both B and C ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Very high pressure boilers are usually __________ boilers. Waste heat Water tube Fire tube Natural circulation Waste heat Water tube Fire tube Natural circulation ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Ceramic recuperators (made of SiC) is economical, only when used for preheating combustion air above __________ °C. 650 250 850 1000 650 250 850 1000 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology If fuel and air are mixed ahead of the burner, it is called a/an __________ burner. Premix Rotary Diffusion Outside mixing type Premix Rotary Diffusion Outside mixing type ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Thermal efficiency of a limestone calcination rotary kiln may be around __________ percent. 40 80 65 20 40 80 65 20 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Heat transfer rate to the charge/stock in a furnace does not depend upon the Flue gas temperature Initial temperature of the charged stock Type of fuels viz solid, liquid or gaseous Emissivity of refractory walls Flue gas temperature Initial temperature of the charged stock Type of fuels viz solid, liquid or gaseous Emissivity of refractory walls ANSWER DOWNLOAD EXAMIANS APP
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