Fuels and Combustion Short/intense flame is produced during combustion of gaseous fuel by using Low amount/current of combustion air Preheated secondary air Very little excess air High amount/current of combustion air Low amount/current of combustion air Preheated secondary air Very little excess air High amount/current of combustion air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Naphthalene is used for making Drug intermediates e.g. β-naphthol All of these Insecticides (e.g. moth balls) Unsaturated polyesters Drug intermediates e.g. β-naphthol All of these Insecticides (e.g. moth balls) Unsaturated polyesters ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Highly reactive coke have lower Porosity Critical air blast (CAB) value Both B and C Coke reactivity index (CRI) Porosity Critical air blast (CAB) value Both B and C Coke reactivity index (CRI) ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Bituminous coal Burns with smoky yellow flame Is generally coking Both B and C Ignites less easily than anthracite Burns with smoky yellow flame Is generally coking Both B and C Ignites less easily than anthracite ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion In high temperature carbonisation (as compared to low temperature carbonisation) of coal Calorific value of coke oven gas is less Tar yield is less but free carbon in tar is more Coke oven gas yield is more All of these Calorific value of coke oven gas is less Tar yield is less but free carbon in tar is more Coke oven gas yield is more All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Percentage of hydrogen in coke oven gas may be around 10 25 45 60 10 25 45 60 ANSWER DOWNLOAD EXAMIANS APP
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