Special_Midterm Formative Assessment No. 2

Which type of metal forming process involves compressive forces applied between two rotating rolls to reduce thickness?

• Drawing

• Rolling

• Extruding

• Forging

During hot working, the metal is deformed:

• Below its recrystallization temperature

• Above its recrystallization temperature

• At sub-zero temperatures

• Only after cold rolling

Which of the following is an advantage of cold working?

• Produces residual stresses

• Requires less force and power

• Improves surface finish and dimensional accuracy

• Reduces hardness and strength

In heat treatment, quenching immediately after heating generally results in:

• Increased brittleness and hardness

• Decreased hardness and strength

• Improved ductility

• No change in grain structure

Which of the following metals is commonly annealed to improve ductility before forming?

• Aluminum

• Cast iron

• Stainless steel

• Titanium

In aircraft welding, the term “fusion zone” refers to:

• The area that remains unaffected by heat

• The region where base metals melt and combine

• The section cooled by shielding gas

• The outer layer formed after heat treatment

Which of the following welding methods does not require filler metal?

• TIG welding

• MIG welding

The primary purpose of normalizing a steel component is to:

• Increase internal stresses

• Refine grain structure and improve toughness

• Decrease hardness

• Harden the outer surface

When laying out a sheet metal bend, “bend deduction” is defined as:

• The length added to compensate for stretching

• The amount subtracted from total flange lengths to get the flat pattern

• The line representing the bend center

• The radius between the inside surfaces of the bend

The process of joining dissimilar metals using a filler metal below 450°C is called:

• Brazing

• Welding

• Hard soldering

• Sintering