CPP Packaging Design & Materials 2

Question 1

Which property of a polymer material describes its ability to return to its original shape after deformation?

Accepted Answer

Elasticity

Answer

Elasticity is the property that allows a material to recover its original shape after a deforming force is removed.

Question 2

In flexible packaging, what does the term 'barrier layer' primarily protect against?

Accepted Answer

Moisture, oxygen, and light transmission

Answer

A barrier layer in flexible packaging is engineered to limit the transmission of moisture, oxygen, aromas, and sometimes light to extend shelf life.

Question 3

What is the primary function of a headspace in a sealed food package?

Accepted Answer

To allow for thermal expansion and modified atmosphere

Answer

Headspace allows for product expansion, accommodates modified atmosphere gases, and provides necessary volume for pressure equalization.

Question 4

Which test method is commonly used to evaluate the seal strength of flexible pouches?

Accepted Answer

Peel test

Answer

The peel test measures the force required to separate two bonded substrates, making it the standard method for evaluating heat seal strength in flexible packaging.

Question 5

What is 'caliper' as it relates to paperboard packaging?

Accepted Answer

The thickness measurement of the board

Answer

Caliper refers to the thickness of paperboard, typically measured in points (thousandths of an inch) or millimeters.

(CPP) Certified Packaging Professional Practice Test

(CPP) Certified Packaging Professional Practice Test

CPP Packaging Design & Materials 2