Fuels and Combustion Low temperature carbonisation of coal produces No by-products Very low calorific value coke oven gas Metallurgical coke Soft coke No by-products Very low calorific value coke oven gas Metallurgical coke Soft coke ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Cannel coal and boghead coal are the examples of Sapropelic coals Liptobiolites None of these Humic coals Sapropelic coals Liptobiolites None of these Humic coals ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following fuel gases has the highest calorific value ? Liquefied petroleum gas (LPG) Natural gas Sewage gas Coal bed methane (CBM) Liquefied petroleum gas (LPG) Natural gas Sewage gas Coal bed methane (CBM) ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A sample of natural gas containing 80% methane (CH₄) and rest nitrogen (N₂) is burnt with 20% excess air. With 80% of the combustibles producing CO₂ and the reminder going to CO, the Orsat analysis in volume percent is CO₂ : 7.42, CO : 1.86, O₂ : 4.64, N₂:86.02 CO₂ : 6.39, CO : 1.60, O₂ : 3.99, H₂O:25.96, N₂:72.06 CO₂ : 7.60, CO : 1.90, O₂ : 4.75, N₂ : 85.74 CO₂ : 6.26, CO : 1.56, O₂ : 3.91, H₂O :15.66, N₂ : 72.60 CO₂ : 7.42, CO : 1.86, O₂ : 4.64, N₂:86.02 CO₂ : 6.39, CO : 1.60, O₂ : 3.99, H₂O:25.96, N₂:72.06 CO₂ : 7.60, CO : 1.90, O₂ : 4.75, N₂ : 85.74 CO₂ : 6.26, CO : 1.56, O₂ : 3.91, H₂O :15.66, N₂ : 72.60 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Benzene is used As a perfume As an explosive As a motor fuel For making insecticides (e.g., DDT, BHC etc.), detergent & rubber (SBR) As a perfume As an explosive As a motor fuel For making insecticides (e.g., DDT, BHC etc.), detergent & rubber (SBR) ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion For maximum discharge through a chimney, its height should be Equal to the height of the hot gas column producing draught More than 105.7 metres Infinitely long 200 meters Equal to the height of the hot gas column producing draught More than 105.7 metres Infinitely long 200 meters ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS