Fire Forensics Review - Part 2

What causes a thermal plume to form?

• hot, buoyant gases

• cool, dense gases

• restricting ventilation

Tags

NGSS.MS-ESS2-6

NGSS.MS-PS3-4

What causes fire, gases and smoke to move throughout a room?

• differences in temperature

• differences in pressure

• differences in density

• ALL of these answers

Heat makes gases ___.

• sink

• hover

• rise

Tags

NGSS.MS-PS1-4

True or False: Ventilation is the exchange of hot fuel gases and air due to any opening in a structure.

• True

• False

What happens if an outside air supply of oxygen is available?

• the oxygen helps blow out the fire

• the oxygen causes the fire to grow

• the oxygen has no impact on the fire

During ventilation, hot gases flow ___ and cooler air flows ___.

• into the room along the floor; out the window along the ceiling

• into the room along the ceiling; out the window along the floor

• out the window along the ceiling; into the room along the floor

• out the window along the floor; into the room along the ceiling

Tags

NGSS.MS-PS1-4

Which stage of fire development is usually the longest stage and ends with the fire going out?

• Ignition

• Growth

• Full Development

• Decay

Why did the ventilation LIMITED room fill with smoke? What happened to that smoke?

The fire in the ventilation limited room eventually went out because it ran out of _____.

• fuel

• oxygen

• heat

Ventilation often makes a fire _____.

• smaller

• bigger

• go out

• tap dance