A. More explosive and inflammable
B. Less poisonous
C. Lighter
D. All A., B. and C.
Coke oven gas compared to blast furnace gas is________________? Read More »
Fuels and Combustion A. 2CO ↔ C + CO2
B. CO + H2O ↔ CO2 + H2
C. C + H2O ↔ CO + H2
D. C + 2H2O ↔ CO2 + 2H2
A. 1,800
B. 3,200
C. 5,400
D. 10,200
A. Higher calorific value at constant volume
B. Gross calorific value at constant pressure
C. Lower calorific value at constant pressure
D. Net calorific value at constant volume
Calorific value as determined by bomb calorimeter is the__________________? Read More »
Fuels and Combustion A. Silica gel
B. Diatomaceous earth
C. Basalt
D. Bog iron (i.e., moist ferric hydroxide)
A. Coal
B. Kerosene
C. Natural gas
D. Furnace oil
Which of the following fuels has the highest calorific value per unit mass (kcal/kg) ? Read More »
Fuels and Combustion A. 1100
B. 1250
C. 1350
D. 1400
A. 10,000
B. 2,500
C. 25,000
D. 35,000
The calorific value of natural gas is about ______________ kcal/Nm3? Read More »
Fuels and Combustion A. Decrease in its calorific value
B. Increase in its strength
C. Brittleness of steel made by using it
D. None of these
High amount of sulphur and phosphorous in coke causes ____________________ ? Read More »
Fuels and Combustion A. Low ignition temperature
B. Very little ash content
C. High fusion point of its ash
D. Low adiabatic flame temperature
A coal containing high amount of volatile matter will have__________________? Read More »
Fuels and Combustion