Quiz on Engineering Failure Analysis

What is a common cause of failure due to improper material selection?

• Using a material that is too flexible

• Using a material that is too expensive

• Using a material that is not suitable for the intended application

• Using a material that is too heavy

Which of the following can lead to failure due to improper casting technique?

• Surface defects

• Increased weight

• Improper color

• Enhanced strength

What is the primary effect of porosity in castings?

• Increased weight

• Enhanced conductivity

• Weakened structure

• Improved aesthetics

What is the main reason for hot tears in castings?

• Excessive heat

• Too rapid cooling

• Inability to shrink freely during cooling

• Improper material selection

According to Chvorinov’s rule, what factors affect solidification time?

• Volume and surface area

• Material and color

• Shape and weight

• Temperature and pressure