Related Questions

Deficiency of combustion air during combustion of a gaseous fuel
A Lengthens the flame
B Causes heat loss of fuel by its partial combustion
C Both A & B
D Shortens the flame
Use of excess of combustion air in the combustion of fuels results in
A Heat losses
B Long flame
C Condensation of water vapour from the fuel gas
D None of these
Sooty and sulphurous smog formed due to combustion of fossil fuels particularly in winter, continues throughout the day and night. When the moist atmospheric air's water vapor condenses on the solid particles of smoke thereby forming smog (smoke + fog), it causes
A Poor visibility due to sky darkening
B Irritation in eyes
C Respiratory trouble
D All of the above
__________ fuels require the maximum percentage of 'excess air' for complete combustion.
A Solid
B Liquid
C Gaseous
D Nuclear
High excess air in combustion of fuels results in
A Increased fuel consumption
B Incomplete combustion
C Smoky flame
D None of these
Which of the following gaseous fuels has the lowest calorific value?
A Refinery Gas
B Gobar Gas
C Converter Gas
D Blast Furnace Gas
The calorific value of gaseous fuels is expressed in terms of
A kcal
B kcal/kg
C kcal/m2
D kcal/m3
Which of the following gaseous fuels is likely to have the highest gross calorific value?
A Sewage gas
B LPG
C Producer gas
D Natural gas
In the gaseous diffusion process of uranium enrichment, the natural uranium is converted into gaseous
A Uranium oxide
B Uranium hexaflouride
C Uranium carbide
D Uranium sulphate
During combustion of a gaseous fuel, the presence of a non-luminous flame is an indication of the
A Incomplete combustion
B Complete combustion
C High oxygen in flue gas
D None of these

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