Fuels and Combustion Coal is pulverised before burning in large capacity boiler furnaces mainly to Enhance its calorific value Facilitate easy ash removal Ensure its complete combustion Provide trouble free operation Enhance its calorific value Facilitate easy ash removal Ensure its complete combustion Provide trouble free operation ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following gaseous fuels has the lowest calorific value? Refinery gas Blast furnace gas Converter gas Gobar gas Refinery gas Blast furnace gas Converter gas Gobar gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Fuel gases containing hydrocarbons (ie.g. coke oven gas) are not preheated before burning, mainly because The hydrocarbons crack thereby choking and fouling the heat transfer surface by carbon soot It reduces its calorific value tremendously It reduces its flame temperature tremendously There are chances of explosion during preheating The hydrocarbons crack thereby choking and fouling the heat transfer surface by carbon soot It reduces its calorific value tremendously It reduces its flame temperature tremendously There are chances of explosion during preheating ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Octane number of 2, 2, 4 - trimethyl pen-tane is In between 0 and 100 More than 100 100 In between 0 and 100 More than 100 100 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Bunsen burner is an example of a/an __________ burner. Submerged combustion Rotary cup Outside mixing/diffusion flame/nozzle mix type Inside mixing/premix type Submerged combustion Rotary cup Outside mixing/diffusion flame/nozzle mix type Inside mixing/premix type ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following fuels is generally not used in thermal power plant boiler firing? Furnace oil, light diesel oil and tar/PCM Coal middling from washeries Pulverised coking coal F. gas, coke oven gas and L.D. converter gas Furnace oil, light diesel oil and tar/PCM Coal middling from washeries Pulverised coking coal F. gas, coke oven gas and L.D. converter gas ANSWER DOWNLOAD EXAMIANS APP
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