Welding Fundamentals

1. An alloy is:

• a mixture of two or more metals or a metal and a non-metal

• a pure metal element

• a type of mineral found in nature

• a chemical compound formed by non-metals only

Metal identification is important because:

• it ensures the correct material is used for specific applications.

• it makes metals look more attractive.

• it increases the weight of the metal.

• it reduces the cost of all metals.

The difference between puddles and beads is that:

• Puddles melt the base metal and beads used filler metal

• Puddles use filler metal and beads melt the base metal

• Puddles uses electrodes and beads move a puddle across the metal

• Puddles are always hot, while beads are always cold.

What is the primarily metal type we will use?

• Wrought iron

• Mild steel

• Aluminum

• Stainless steel

Position 1 refers to joints in the position.

Position 2 refers to joints in the position.

Position 3 refers to joints in the position.

Position 4 refers to joints in the position.

10. Welding: general term for number of processes used to fuse materials together.

• Welding

• Casting

• Forging

• Soldering

What fuel gas is commonly used in the shop for OFW?

• Acetylene

• Propane

• Methane

• Butane