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- 1. Multiple Choice
Larger and irregular lumps of solid fuel (e.g. coal) when fired in a boiler or furnace may lead to
low thermal efficiency
high excess air
large unburnt particles in the ash
all of the above
- 2. Multiple Choice
Calculate the maximum theoretical temperature (t) attained when hydrogen is burnt in oxygen . The heat of combustion of hydrogen to water vapour is 57.8 Kcals. The specific heat of water vapour is [ 0.463 + 6.2x 10-5t] t cals/g.
45800 C
44800C
43080C
43800C
- 3. Multiple Choice
PCRA stands for
pollution control research association
petroleum conversation research association
petroleum control research associated
petrol, coal reserve associated
- 4. Multiple Choice
Acid rain is caused by oxides of
sulphur, nitrogen
sulphur, carbon
carbon, nitrogen
phosphorous, carbon
- 5. Multiple Choice
Calculate the theoretical weight and volume of air at NTP, required for the complete combustion of 1 kg of coke
8889 liters
8789 liters
8989 liters
9899 liters
- 6. Multiple Choice
Hydrogen gas obtained from natural gas is used in
motor fuel
fertilizers
paints
stoves
- 7. Multiple Choice
The total amount of heat or energy produced by one kg of fuel is the
heat content
net calorific value (NCV)
gross calorific value(GCV)
specific heat
- 8. Multiple Choice
Refining is
extracting petroleum gas
separation of various fractions of petroleum
heating of coal
sedimentation of fossil fuel
- 9. Multiple Choice
Fuel formed under the earth’s surface by the decomposition of organic matter is called
organic fuel
biogas
fossil fuel
underground fuel
- 10. Multiple Choice
In India, vast reserves of natural gas are found in
Tripura
Rajasthan
Maharashtra
All of these
- 11. Multiple Choice
Bitumen is used in
electric generators
road surfacing
Coal tar
natural gas
- 12. Multiple Choice
What is called ‘black gold’ ?
Petroleum
Coal
Coal tar
Natural gas
- 13. Multiple Choice
CO2 is stored as a liquid in cylinder at
high pressure
low pressure
high temperature
low temperature
- 14. Multiple Choice
Petrol can be saved by
driving at a constant & moderate speed
ensuring correct type pressure
switching off the engine at traffic lights
all of these
- 15. Multiple Choice
CNG is
highly polluting
less polluting
not at all polluting
none of these
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