Fuels and Combustion Optimum preheating temperature for pitch creosote mixture (PCM) which is also termed as C.T.F-200, before atomisation through burners is 200 °F 200 °C 200 °R 200 °K 200 °F 200 °C 200 °R 200 °K ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Blast furnace gas compared to coke oven gas has Lower ignition temperature Narrower limit of inflammability Higher calorific value Lower theoretical flame temperature Lower ignition temperature Narrower limit of inflammability Higher calorific value Lower theoretical flame temperature ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A coal having high ratio of volatile matter to fixed carbon as compared to a coal having low ratio of volatile matter to fixed carbon Is more difficult to ignite and produces a shorter flame Is less liable to spontaneous combustion on storage None of these Requires smaller combustion space and less secondary air Is more difficult to ignite and produces a shorter flame Is less liable to spontaneous combustion on storage None of these Requires smaller combustion space and less secondary air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Naphthalene is used for making Unsaturated polyesters All of these Drug intermediates e.g. β-naphthol Insecticides (e.g. moth balls) Unsaturated polyesters All of these Drug intermediates e.g. β-naphthol Insecticides (e.g. moth balls) ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Tar yield in the low temperature and high temperature carbonisation of dry coal may be respectively __________ percent. 15 & 8 10 & 3 10 & 20 3 & 10 15 & 8 10 & 3 10 & 20 3 & 10 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The calorific value of natural gas is about __________ kcal/Nm³. 35, 000 10, 000 2500 25, 000 35, 000 10, 000 2500 25, 000 ANSWER DOWNLOAD EXAMIANS APP
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