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 Rate of low temperature oxidation of coal due to bad storage conditions Does not vary with increase in surface area Decreases with increase in surface area Is accelerated by storage in large heaps with small surface to volume ratio Is more for low volatile coal compared to high volatile coal Does not vary with increase in surface area Decreases with increase in surface area Is accelerated by storage in large heaps with small surface to volume ratio Is more for low volatile coal compared to high volatile coal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Calorific value of gobar gas (containing CH₄ = 60% , H₂ = 10% ; CO₂ = 30%) may be about __________ Kcal/Nm³. 10200 1800 5400 3200 10200 1800 5400 3200 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Main constituent of natural gas is CH₄ (upto 90%) C₃H₈ C₂H₆ H₂ CH₄ (upto 90%) C₃H₈ C₂H₆ H₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Dry air required to burn 1 kg of carbon completely may be around __________ kg. 38 2 20 11 38 2 20 11 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following has the highest flame speed? H₂ CH₄ C₂H₆ CO H₂ CH₄ C₂H₆ CO ANSWER DOWNLOAD EXAMIANS APP
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