Combustion Quiz

Which of the following is a condition required for combustion to occur?

• Light

• Water

• Fuel, oxygen, and heat

• Smoke and flame

What is the minimum temperature at which a substance catches fire and starts combustion reaction called?

• Flash point

• Melting point

• Ignition temperature

• Fire temperature

Which of the following shows rapid combustion?

• Rusting of iron

• LPG catching fire

• Wood slowly burning

• Coal turning to ash

In which type of combustion is a lot of heat, light, and a loud sound released instantly?

• Incomplete combustion

• Spontaneous combustion

• Explosive combustion

• Slow combustion

Which one of the following is a result of incomplete combustion?

• Carbon dioxide

• High energy release

• Blue flame

• Carbon monoxide and soot

Which of the following is a sign of complete combustion?

• Yellow flame and smoke

• Soot formation

• Blue flame and no residue

• Unburnt fuel remains

Which component is not part of the fire triangle?

• Fuel

• Oxygen

• Carbon dioxide

• Heat

Spontaneous combustion occurs when a substance:

• Is struck by lightning

• Catches fire on its own without a flame

• Is exposed to high pressure

• Is shaken or stirred

Why should water not be used on oil or electrical fires?

• Water increases the heat

• Water creates foam

• Water spreads oil and conducts electricity

• Water reacts with fuel to stop fire

Which extinguisher is best for cooking oil fires?

• Water

• Sand

• Wet chemical extinguisher

• Carbon dioxide extinguisher