Fuels and Combustion Bituminous coal Burns with smoky yellow flame Both B and C Ignites less easily than anthracite Is generally coking Burns with smoky yellow flame Both B and C Ignites less easily than anthracite Is generally coking ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Producer gas containing least amount of tar is produced by the Partial combustion of coal High pressure gasification of coal (e.g. in Lurgi gasifier) Partial combustion of large size (< 50 mm) coke Atmospheric pressure gasification of coal (e.g., in Kopper-Totzek gasifier) Partial combustion of coal High pressure gasification of coal (e.g. in Lurgi gasifier) Partial combustion of large size (< 50 mm) coke Atmospheric pressure gasification of coal (e.g., in Kopper-Totzek gasifier) ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion For which pair of the fuel gases, calorific value (C.V.) of one fuel is almost double that of the other on volume basis (i.e., kcal/Nm³ ), while the C.V. is same on weight basis (i.e., kcal/kg) ? F. gas and coke oven gas Propane and acetylene Sewage gas and gobar gas Propane and LPG F. gas and coke oven gas Propane and acetylene Sewage gas and gobar gas Propane and LPG ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Short/intense flame is produced during combustion of gaseous fuel by using High amount/current of combustion air Very little excess air Low amount/current of combustion air Preheated secondary air High amount/current of combustion air Very little excess air Low amount/current of combustion air Preheated secondary air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A coal with high ash content Is not subjected to washing Is harder and stronger Has low quantity of mineral matter Has higher calorific value Is not subjected to washing Is harder and stronger Has low quantity of mineral matter Has higher calorific value ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A coal having high volatile matter content will None of these Burn with a small non-smoky flame Give less yield of tar and gas on carbonisation Have a very high calorific value None of these Burn with a small non-smoky flame Give less yield of tar and gas on carbonisation Have a very high calorific value ANSWER DOWNLOAD EXAMIANS APP
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