Grade 10 welding sessional

Which three(3) components are needed to start a fire?

• oxygen, water an fuel

• fuel, heat and oxygen

• fuel, carbon dioxide and time

• ignition, carbon dioxide and moisture

Why is it important to know the different classes of fire?

• because some cause greater damage than others

• because everyone in a workplace needs to fight fire

• because there are specific extinguishers for different fires

Which class of fire would be most common in a carpenters shop?

• class A

• class B

• Class C

• class D

Which element of a fire is removed by a water based extinguisher?

• Heat

• Fuel

• Oxygen

• All of the above

What color are prohibitory sings?

• blue

• green

• red

• yellow

which shape is normally used for caution signs?

• square

• triangle

• circle

• hexagon

what color are caution signs?

• black

• green

• yellow

• red

Mandatory signs are of which color?

• blue

• green

• purple

• yellow

What does OSHA stand for?

Which fire extinguisher is more suitable for electrical fire?