Fuels and Combustion Presence of phosphorous in metallurgical coal Is not undersirable Increases its caking power Reduces its calorific value Badly affects the quality of steel Is not undersirable Increases its caking power Reduces its calorific value Badly affects the quality of steel ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is the most important deterrents to an extended use of pulverised coal in boiler firing? Excessive fly-ash discharge from the stack Erosion of induced draft fan blades High power consumption in its transportation Ash disposal problem Excessive fly-ash discharge from the stack Erosion of induced draft fan blades High power consumption in its transportation Ash disposal problem ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Preheating of coal charge for the coke ovens reduces the All of these Fuel consumption in coking Yield of gas and tar Time of carbonisation All of these Fuel consumption in coking Yield of gas and tar Time of carbonisation ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is not a product of tar distillation? Phenol & naphthalene None of these Benzol & pitch Anthracene & creosote Phenol & naphthalene None of these Benzol & pitch Anthracene & creosote ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coals used for the generation of producer gas should have High caking index Very low ash content (8-10%) High volatile matter content Low fusion point of ash High caking index Very low ash content (8-10%) High volatile matter content Low fusion point of ash ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Gobar gas is produced by the __________ of 'gobar' (cow dung). Hydrolysis Dehydration Fermentation Oxidation Hydrolysis Dehydration Fermentation Oxidation ANSWER DOWNLOAD EXAMIANS APP
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