Fuels and Combustion Furnace oil consumption in a furnace for a given duty employing preheated combination air (at 300° ) may be reduced by about __________ percent as compared to the use of atmospheric combustion air. 10 20 5 35 10 20 5 35 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The fuel ratio of a coal is Helpful in estimation of its rank The ratio of its percentage of fixed carbon to that of volatile matter Both A and B Neither A nor B Helpful in estimation of its rank The ratio of its percentage of fixed carbon to that of volatile matter Both A and B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following can be made into briquettes without the use of a binder? Bituminous coal Anthracite coal None of these Lignite Bituminous coal Anthracite coal None of these Lignite ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Volumetric ratio of N₂ to O₂ in dry atmospheric air is 4.76 0.79 0.21 3.76 4.76 0.79 0.21 3.76 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following has the highest calorific value (kcal/Nm³) ? Carburetted water gas LPG Gobar gas Natural gas Carburetted water gas LPG Gobar gas Natural gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following fuels is the best for burning on chain grate stoker? Pulverised coal Non-caking coal Coking coal Caking coal Pulverised coal Non-caking coal Coking coal Caking coal ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS