Fuels and Combustion Which of the following has the least calorific value (kcal/Nm³) ? Sewage gas Coke oven gas Blast furnace gas Natural gas Sewage gas Coke oven gas Blast furnace gas Natural gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Washing of coal decreases its Caking index Both B and C Ash content Mineral matter content Caking index Both B and C Ash content Mineral matter content ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion High sulphur content in a fuel __________ of the flue gases. Increases the dew point Decreases the dew point Reduces the combustion efficiency by limiting the permissible temperature reduction Both B & C Increases the dew point Decreases the dew point Reduces the combustion efficiency by limiting the permissible temperature reduction Both B & C ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A good coking coal should have high __________ content. Ash None of these Sulphur & phosphorus Moisture Ash None of these Sulphur & phosphorus Moisture ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion As time passes, the calorific value of stored coal Decreases May increase or decrease (depends on the method of storage) Remains unaltered Increases Decreases May increase or decrease (depends on the method of storage) Remains unaltered Increases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increase in C/H ratio of a fuel, the amount of CO₂ formed on its complete combustion Decreases Increases Either A or B, depends on other factors Remains same Decreases Increases Either A or B, depends on other factors Remains same ANSWER DOWNLOAD EXAMIANS APP
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