PSE 201: Core Concepts Test
Question and answers already passed
2025/2026
When and in what country was paper invented? - correct answer ✔China, 105 AD
What is the technical definition of paper? - correct answer ✔A web consisting of cellulose fibers
deposited from water suspension and then dried to form inter-hydrogen bonds
How much paper and board does the US manufacture each year? What % does that represent of the
total world production? - correct answer ✔US - 74 million tons/yr
19% of worldwide production
How much paper and board is made in the world each year? - correct answer ✔400 million tons
What is the per-capita consumption of paper in the US each year, in lbs? How does this compare to
China? - correct answer ✔US - 500 lb/yr
China - 165 lb/yr
What are three major broad grades of paper? What % does each represent of the total production in the
US each year? - correct answer ✔Writing/Printing (30%)
Tissue (10%)
Board (60%)
, What is largest grade of paper produced in the US, by weight? - correct answer ✔Uncoated free sheet
What is the largest grade of paperboard produced in the US, by weight? - correct answer
✔Containerboard
What is "market pulp?" - correct answer ✔Thick sheets of raw fiber sold to mills that have a paper
machine but no pulp mill
What is "fluff pulp?" - correct answer ✔Long, hammer-milled fibers that are used in absorbent
consumer products
What are the two types of paperboard that go into a typical corrugated box? - correct answer ✔Liner
board and corrugating medium
Of all the paper and board produced in the US each year, what % comes from recycled paper and board?
- correct answer ✔37-41%
What % of all paper and board produced in the US is recovered each year, instead of being sent to the
landfill? - correct answer ✔67%
Can you name the major structures/areas in wood, if shown a photo or drawing of a tree cross- section?
Can you tell what the function of each structure is? - correct answer ✔Tracheids (vertical cells)
Ray cells parencyma cells (horizontal)
*Hardwoods have vessel elements*
Question and answers already passed
2025/2026
When and in what country was paper invented? - correct answer ✔China, 105 AD
What is the technical definition of paper? - correct answer ✔A web consisting of cellulose fibers
deposited from water suspension and then dried to form inter-hydrogen bonds
How much paper and board does the US manufacture each year? What % does that represent of the
total world production? - correct answer ✔US - 74 million tons/yr
19% of worldwide production
How much paper and board is made in the world each year? - correct answer ✔400 million tons
What is the per-capita consumption of paper in the US each year, in lbs? How does this compare to
China? - correct answer ✔US - 500 lb/yr
China - 165 lb/yr
What are three major broad grades of paper? What % does each represent of the total production in the
US each year? - correct answer ✔Writing/Printing (30%)
Tissue (10%)
Board (60%)
, What is largest grade of paper produced in the US, by weight? - correct answer ✔Uncoated free sheet
What is the largest grade of paperboard produced in the US, by weight? - correct answer
✔Containerboard
What is "market pulp?" - correct answer ✔Thick sheets of raw fiber sold to mills that have a paper
machine but no pulp mill
What is "fluff pulp?" - correct answer ✔Long, hammer-milled fibers that are used in absorbent
consumer products
What are the two types of paperboard that go into a typical corrugated box? - correct answer ✔Liner
board and corrugating medium
Of all the paper and board produced in the US each year, what % comes from recycled paper and board?
- correct answer ✔37-41%
What % of all paper and board produced in the US is recovered each year, instead of being sent to the
landfill? - correct answer ✔67%
Can you name the major structures/areas in wood, if shown a photo or drawing of a tree cross- section?
Can you tell what the function of each structure is? - correct answer ✔Tracheids (vertical cells)
Ray cells parencyma cells (horizontal)
*Hardwoods have vessel elements*
