Combustion & Flame

Combustion & Flame

By Seema K.V

Open Ended

What is Ignition temperature?

Multiple Select

Which of the following are combustible substance?

• Paper

• Stone

• Glass

• Plastic

Multiple Choice

CNG and LPG are :

• Solid fuel

• Liquid fuel

• Gaseous fuel

• None of these

Multiple Choice

For a fuel to burn, it must be heated to :

• To boiling point

• To its ignition temperature

• To the room temperature

Multiple Choice

Substances which have lower ignition temperature catch fire easily

• True

• False

Multiple Choice

Among the following which has a lower ignition temperature:

• Kerosene

• Paper

• Wood

Multiple Choice

Combustion is _______________ process

• Chemical

• Physical

Multiple Choice

Kerosene has a higher ignition temperature

• False

• True

Multiple Choice

Any substance that releases energy when burnt is called:

• Fuel

• Non-combustible substance

Multiple Choice

Sun produces heat and light due to ______________ reaction.

• Nuclear

• Solar

Multiple Choice

The most common fuel used in homes

• LPG

• CNG

Open Ended

What acts as a fuel for our body?

Thank You