Fuels and Combustion Which of the following would require least amount of secondary air for combustion? Anthracite containing 10% volatile matter and 8% ash Bituminous coal containing 20% ash and 25% volatile matter Semi-bituminous coal containing 25% ash and 20% volatile matter Coke breeze containing 25% ash and 2% volatile matter Anthracite containing 10% volatile matter and 8% ash Bituminous coal containing 20% ash and 25% volatile matter Semi-bituminous coal containing 25% ash and 20% volatile matter Coke breeze containing 25% ash and 2% volatile matter ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Fusion point of coal ash increases with increase in its __________ content. Iron sulphate All of these Iron silicate Lime and magnesia Iron sulphate All of these Iron silicate Lime and magnesia ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Out of the following fuels, the difference between the net and gross calorific value is maximum in case of Pitch Bituminous coal Fuel oil Blast furnace gas Pitch Bituminous coal Fuel oil Blast furnace gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion While the first commercial low temperature coal carbonisation plant is located at Neyveli (in Chennai), the second such plant has been built at Dankuni (West Bengal) Singreni (AP.) Raniganj Dhanbad Dankuni (West Bengal) Singreni (AP.) Raniganj Dhanbad ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is not a product of tar distillation? Benzol & pitch Anthracene & creosote None of these Phenol & naphthalene Benzol & pitch Anthracene & creosote None of these Phenol & naphthalene ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Pensky-Marten apparatus is used for those oils, whose flash points are __________ °F. 90-110 >120 90-110 >120 ANSWER DOWNLOAD EXAMIANS APP
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