Fuels and Combustion Short/intense flame is produced during combustion of gaseous fuel by using High amount/current of combustion air Preheated secondary air Very little excess air Low amount/current of combustion air High amount/current of combustion air Preheated secondary air Very little excess air Low amount/current of combustion air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Lurgi gasifier (high pressure gasifier) as compared to Kopper Totzek gasifier (atmospheric pressure gasifier) produces Lower amount of hydrogen Higher amount of methane Both A & B Higher amount of both methane and hydrogen Lower amount of hydrogen Higher amount of methane Both A & B Higher amount of both methane and hydrogen ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The function of secondary combustion air is to Burn the lumpy coal Pneumatically convey the pulverised coal None of these Completely burn the volatile matter Burn the lumpy coal Pneumatically convey the pulverised coal None of these Completely burn the volatile matter ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Fossil fuels mean Solid fuels Those fuels which are found in the crust of earth Liquid fuels Premature fuels with low calorific value Solid fuels Those fuels which are found in the crust of earth Liquid fuels Premature fuels with low calorific value ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion High rate of heating of coke ovens Produces larger size coke None of these May damage its walls due to abrupt excessive swelling of coal Increases the time of carbonisation Produces larger size coke None of these May damage its walls due to abrupt excessive swelling of coal Increases the time of carbonisation ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Higher fuel combustion efficiency can not be achieved by Preheating of fuel gases & combustion air Supplying correct amount of combustion air Adopting proper fuel firing technique & fuel preparation Reducing sulphur content in the fuel Preheating of fuel gases & combustion air Supplying correct amount of combustion air Adopting proper fuel firing technique & fuel preparation Reducing sulphur content in the fuel ANSWER DOWNLOAD EXAMIANS APP
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