Steel part 5 slide 1-20 questions

Welding is the process of connecting metal parts by:

• Bolting

• Riveting

• Fusion

• Adhesion

The two main methods of welding are:

• Arc welding and gas welding

• Bolting and riveting

• Oxy-acetylene welding and bolting

• Fusion welding and glue welding

Strength of weld is calculated as:

• Throat thickness + weld length

• Permissible stress × throat area

• Length of weld ÷ throat area

• Permissible stress – weld size

Which type of weld is also called groove weld?

• Butt weld

• Fillet weld

• Plug weld

• Slot weld

A fillet weld is not recommended if the angle between the fusion faces is:

• Less than 60°

• Equal to 90°

• Less than 120°

• Greater than 120°

In plug welds, the filler material is:

• Used at the edge

• Poured into drilled holes

• Applied at overlapping joints

• Not used

The effective throat thickness of a single groove butt joint is:

• t

• 0.7s

• 5/8t

• 2s

Oxy-acetylene welding uses:

• Electricity

• Nitrogen and acetylene

• Oxygen and acetylene

• Gasoline and oxygen

In slot welds, the boundary of the slot is:

• Not welded

• Lap welded

• Butt welded

• Bolted

Throat thickness of a fillet weld is:

• 0.707 S

• 1.414 S

• S

• S/2