Question

0.
(b) CNG
(c) Diesel
(d) Kerosene
(a) Petrol
7. Good fuels have:
(a) high ignition temperature and low calorific value
(b) low ignition temperature and high calorific value.
(c) high ignition temperature and low calorific value
(d) low ignition temperature and low calorific value
8. A mixture of carbon monoxide and nitrogen is called:
(b) producergas (c) coal gas
(d) none of these
(a) water gas
Fill in the blanks :
combustion.
to
produce CO2
1. Inner ost zone of a flame is also called blue
zone.
2. Luminous zone is the zone of incomplete
3. In soda-acid fire extinguisher, sulphuric acid gets mixed with
4. Diferent fuels produce different amounts of heatenergy.
5. Fossil fuels are non-renewable sources of energy.
Check the truth of the following statements and write True or False against them:
1. Stone, glass and iron are combustible substances.
2. Water is also a fire extinguisher.
3. Burning of a candle is a type of rapid combustion.
ont of all the fuels​

Answer 1

Answer:

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Answer 2

Answer:

2 it is very big give me a time