QUIZ Chapter 5 - Impact test

Define toughness

• Failure the part fracture extensively without yielding 

• The ability of material to resist breaking under a shock loading 

• The part shows slightly cracking and yielding without losing it shape or integrity

• The ability of the polymer to absorb applied energy 

State ONE (1) difference between yielding and cracking

• No changes for both yielding and cracking 

• Yielding will create cracking while cracking will show obvious deformation 

• Yielding will show obvious deformation and stress whitening while cracking will show cracking apperance

• Yielding and cracking are same thing. 

In your opinion, why part B have high impact strength compared to part A? 

• Impact Energy absorbed of Part B is higher than Part A 

• It just luck for part B to sustain it shape.

• Part B consist of more ribs than Part A

• Part B have high hardness than Part A

Which are NOT the factor that influence the impact test results?

• Orientation

• Rate of Loading

• Temperature

• Height of the pendulum

Which of these following answer is NOT the one of the pendulum impact test?

• Izod Test

• Tensile impact Test

• Charpy Test

• Drop Weight impact Test

If the temperature increase, the impact strength will become ______________.

• Decrease

• Increase

• Remain same

State THREE (3) apparatus / component of impact tester machine 

• Support span for sample 

• Sample form Injection / Compression Molding 

• Heavy based with vise

• Pendulum hammer 

This sample setup configuration was used for ________ impact test.

• Charpy

• Tensile impact

• Dart drop

• Izod

What is the code for the ASTM Charpy Impact Test?

• ASTM 695

• ASTM 256

• ASTM6110

• ASTM 790

Tensile impact test sample cannot be used with dumbbell specimen type 3. True or false?

• FALSE

• TRUE