COMBUSTION AND FLAME 1

Which type of fire extinguisher should be used on a fire involving flammable liquids such as grease or oil?

• Water
• Carbon Dioxide 
• Dry Chemical
• Foam

In which form the colfloric value represent?

• (kJ/kg)
• gram
• kilogram 
• both 1 & 3

The condition which are required for combustion to take place are:

• fuel
• ignition temperature
• oxygen
• all of these

If a flame is giving off smoke, this type of combustion is occurring...

• Complete combustion

• Incomplete combustion

Moderately hot zone in a candle flame

• outer zone

• middle zone

• innermost zone

• wax candle

what is the type of combustion 
which occurs rapidly and produce heat and light?

• rapid combustion
• spontaneous combustion
• fast combustion
• explosion

one fuel used in our homes

• petrol

• LPG

• diesel

• CNG

Near fire, a chemical which gives off CO₂

• sodium bicarbonate

• chalk powder

• talcum powder

• none of the above

The three sides to the fire triangle are;

• Petrol, Spark, Oxygen
• Heat, Fuel, Oxygen
• Heat, Paper, Air
• Match, Paper, Air

A fuel produces:

• heat

• light

• neither heat nor light

• both heat and light