Urban

What is Ventilation?

Answer explanation

What is Ventilation?

The removal of heat and fire gases (smoke) and the controlled introduction of fresh air

Ways to stop a fire

Answer explanation

Smothering

Starving

Chemical action

Cooling

Decomposition of material through the action of heat is called

Answer explanation

Combustible gas is released and char remains. Fuel continues to absorb heat until sufficient gasses are evolved to make the atmosphere rich enough to support combustion.

The transfer of heat energy through a material by contact between its moving molecules.

• Conduction

• Convection

• Radiation

• Pyrolysis

Answer explanation

...... Is heat transfer by mass motion of a fluid such as air or water when the heated fluid is caused to move away from the heat source carrying energy

... is heat transfer by emission of electromagnetic waves that carry energy away from the emitting object.

• Radiation

• Convection

• Conduction

• Pyrolysis

Order from A at top to F

c

a

b

d

e

f

Cooking oils

Flammable gases

Combustible metals

Electrical

Combustible solids

Flammable Liquids

Stages of fire

• Developing, flashover, fully developed, decay

• Flashover, firepoint, decay

• Initial/incipit, developing, fully developed, decay

• Developing, flashpoint, fully developed, decay

.... Extinguisher. Capacity is.. L.

Black and red ___ extinguisher

........ Of electricity.

Normally between 2 and 5kg.