Fuels and Combustion Washing of coal Controls its ash fusibility and increases its calorific value All of these Improves its coking properties Reduces its sulphur and ash content Controls its ash fusibility and increases its calorific value All of these Improves its coking properties Reduces its sulphur and ash content ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following has the highest flame velocity? CH₄ C₂H₆ CO H₂ CH₄ C₂H₆ CO H₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A coal with high __________ content, would ignite most easily. Fixed carbon Volatile matter Ash Oxygen Fixed carbon Volatile matter Ash Oxygen ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Gobar gas is produced by the __________ of 'gobar' (cow dung). Oxidation Hydrolysis Dehydration Fermentation Oxidation Hydrolysis Dehydration Fermentation ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion For the case of a fuel gas undergoing combustion with air, if the air/fuel ratio is increased, the adiabatic flame temperature will Decrease Not change Increase or decrease depending on the fuel type Increase Decrease Not change Increase or decrease depending on the fuel type Increase ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is not a product of tar distillation? Anthracene & creosote None of these Phenol & naphthalene Benzol & pitch Anthracene & creosote None of these Phenol & naphthalene Benzol & pitch ANSWER DOWNLOAD EXAMIANS APP
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