Furnace Technology Shaft furnaces are used for Calcining Smelting Roasting All of these Calcining Smelting Roasting All of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Thermal efficiency of blast furnace stoves used for heating blast (air) may be about __________ percent. 20 40 60 80 20 40 60 80 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Hearth furnaces are not used for Reheating Roasting Melting None of these Reheating Roasting Melting None of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Thickness of stock does not affect the fuel economy of furnaces, if the material to be heated is of High thermal conductivity Both A and B Low emissivity Neither A nor B High thermal conductivity Both A and B Low emissivity Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Advantages of use of preheated combustion air are Increase in flame temperature Reduction in scale losses All of these Saving in fuel consumption Increase in flame temperature Reduction in scale losses All of these Saving in fuel consumption ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Very high pressure boilers are usually __________ boilers. Waste heat Natural circulation Fire tube Water tube Waste heat Natural circulation Fire tube Water tube ANSWER DOWNLOAD EXAMIANS APP
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