PKSC 1020 MIDTERM QUESTIONS WITH
ANSWERS
The raw material for steel is - ANSWER-iron
thermoset plastics - ANSWER-have bonds that can stretch and have memory
The piece of molten glass coming out of the IS machine and traveling down the
deflector is called a - ANSWER-gob
What type of can is this? - ANSWER-two piece can
What is the middle type of seam called? - ANSWER-Mechanical clinch seam
A disadvantage of using glass in packaging is: - ANSWER-all of the above
What commonly used plastic was developed in 1930? - ANSWER-Polyethylene (PE)
This method of sealing the body of a can to the top is used on: - ANSWER-All of the
answers, except "none"
All petroleum based plastics are based chemically on what element? - ANSWER-carbon
Steel cans are coated to: - ANSWER-prevent corrosion of the metal
Which type of plastic can be described by minimal branching so the molecules can
come in contact? - ANSWER-high density polyethylene
Density and yield are ____ related - ANSWER-inversely
A small apple sauce container that has a totally flat bottom is produced by what plastic
processing method? - ANSWER-Thermoforming
The process by which bauxite is converted to alumina is the ____ process. - ANSWER-
Bayer Process
What is the only substrate that comes in rigid form? - ANSWER-Glass
What is another name for an interrupted thread closure? - ANSWER-Lug style
What does alloy mean? - ANSWER-a mixture of metals
ANSWERS
The raw material for steel is - ANSWER-iron
thermoset plastics - ANSWER-have bonds that can stretch and have memory
The piece of molten glass coming out of the IS machine and traveling down the
deflector is called a - ANSWER-gob
What type of can is this? - ANSWER-two piece can
What is the middle type of seam called? - ANSWER-Mechanical clinch seam
A disadvantage of using glass in packaging is: - ANSWER-all of the above
What commonly used plastic was developed in 1930? - ANSWER-Polyethylene (PE)
This method of sealing the body of a can to the top is used on: - ANSWER-All of the
answers, except "none"
All petroleum based plastics are based chemically on what element? - ANSWER-carbon
Steel cans are coated to: - ANSWER-prevent corrosion of the metal
Which type of plastic can be described by minimal branching so the molecules can
come in contact? - ANSWER-high density polyethylene
Density and yield are ____ related - ANSWER-inversely
A small apple sauce container that has a totally flat bottom is produced by what plastic
processing method? - ANSWER-Thermoforming
The process by which bauxite is converted to alumina is the ____ process. - ANSWER-
Bayer Process
What is the only substrate that comes in rigid form? - ANSWER-Glass
What is another name for an interrupted thread closure? - ANSWER-Lug style
What does alloy mean? - ANSWER-a mixture of metals
