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Paper Science

Instructions:

Answer 28 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. In order to control the basis weight of the sheet - the ____ and _____ of the streams must be measured and controlled
Delivers stock onto the wire
Manifold
Refers to the weight per unit surface area (one side) of a paper sheet and is critical quality attribute
Consistency & flow rate

2. The _____ must get the same amount of fiber spread evenly across the headbox
Manifold (distributor) & the actual headbox
Manifold
When refining pulverizes the primary and outer secondary layers of the fiber wall
Consistency & flow rate

3. The headbox is actually made up of the _____ and the ______
A harsh mechanical action carried out on fibers to: 1) Collapse them into flat papermaking ribbons and 2) Fibrillate the outer surface of the fiber to increase bonding area and sheet strength
Refining
Manifold (distributor) & the actual headbox
Wire

4. Furnish
1) Gravity section 2) Vacuum section 3) Press section
The component makeup (recipe) of the sheet
Drainage rate (freeness)
1) Overall stock flow 2) Angle of flow 3) Speed of flow 4) Amount of flow at different points across the machine

5. What does the headbox do?
Consistency & flow rate
Delivers stock onto the wire
1) Dose 2) Dilute 3) Disperse 4) Distribute 5) Dewater 6) Dry
The component makeup (recipe) of the sheet

6. Refining is done via ___________
Delivers stock onto the wire
The component makeup (recipe) of the sheet
Rolling friction between surfaces
1) Open 2) Air- padded 3) Hydraulic

7. Basis Weight
Gets stock into the headbox
Wire
Refers to the weight per unit surface area (one side) of a paper sheet and is critical quality attribute
A harsh mechanical action carried out on fibers to: 1) Collapse them into flat papermaking ribbons and 2) Fibrillate the outer surface of the fiber to increase bonding area and sheet strength

8. Wet strength formula
Consistency & flow rate
(Wet tensile x 100 %)/Dry tensile
Manifold
1) Plain 2) Blind drilled 3) Grooved ('vented') 4) Vacuum (suction) press

9. Strong - smooth - printable paper CANNOT be made without the use of _____
Refining
Basis weight valve
1) Retention aids 2) Sizing agents 3) Fillers 4) Strength additives 5) Dyes & pigments 6) pH control additives 7) Specialty additives 8) Operational improvement additives
1) The wet end flow loop 2) The white water recirculation loop 3) The basis weight control loop

10. The headbox can be adjusted to control what?
1) The wet end flow loop 2) The white water recirculation loop 3) The basis weight control loop
1) Overall stock flow 2) Angle of flow 3) Speed of flow 4) Amount of flow at different points across the machine
Manifold (distributor) & the actual headbox
1) Retention aids 2) Sizing agents 3) Fillers 4) Strength additives 5) Dyes & pigments 6) pH control additives 7) Specialty additives 8) Operational improvement additives

11. Most modern refining is done using _____
When refining pulverizes the primary and outer secondary layers of the fiber wall
1) Retention aids 2) Sizing agents 3) Fillers 4) Strength additives 5) Dyes & pigments 6) pH control additives 7) Specialty additives 8) Operational improvement additives
1) Gravity and light vacuum 2) Heavy vacuum 3) Mechanical pressure 4) Heat
Disk refiners

12. What are the basic categories/types of additives used for papermaking?
1) Metering of THICK STOCK for basis weight control 2) Dispersion and dilution of the THICK STOCK into THIN STOCK 3) Uniform distribution of the THIN STOCK across the width of the machine
1) Dose 2) Dilute 3) Disperse 4) Distribute 5) Dewater 6) Dry
Manifold
1) Retention aids 2) Sizing agents 3) Fillers 4) Strength additives 5) Dyes & pigments 6) pH control additives 7) Specialty additives 8) Operational improvement additives

13. What are the three types of headboxes?
Drainage rate (freeness)
1) Overall stock flow 2) Angle of flow 3) Speed of flow 4) Amount of flow at different points across the machine
The solids (dry) fraction of a papermaking slurry or pulp sample
1) Open 2) Air- padded 3) Hydraulic

14. What are the key functions of the headbox approach system?
1) Overall stock flow 2) Angle of flow 3) Speed of flow 4) Amount of flow at different points across the machine
1) Metering of THICK STOCK for basis weight control 2) Dispersion and dilution of the THICK STOCK into THIN STOCK 3) Uniform distribution of the THIN STOCK across the width of the machine
Refining
1) The wet end flow loop 2) The white water recirculation loop 3) The basis weight control loop

15. The 6 D's of Papermaking
Refining
Delivers stock onto the wire
Gets stock into the headbox
1) Dose 2) Dilute 3) Disperse 4) Distribute 5) Dewater 6) Dry

16. What does the manifold do?
A harsh mechanical action carried out on fibers to: 1) Collapse them into flat papermaking ribbons and 2) Fibrillate the outer surface of the fiber to increase bonding area and sheet strength
The solids (dry) fraction of a papermaking slurry or pulp sample
Gets stock into the headbox
Rolling friction between surfaces

17. The 'white water loop'
1) Retention aids 2) Sizing agents 3) Fillers 4) Strength additives 5) Dyes & pigments 6) pH control additives 7) Specialty additives 8) Operational improvement additives
The solids (dry) fraction of a papermaking slurry or pulp sample
All water used to dilute the thick stock is recovered from the wet end and used to dilute more stock
The component makeup (recipe) of the sheet

18. What are the main forces used to remove water on a paper machine wet end?
When refining pulverizes the primary and outer secondary layers of the fiber wall
The component makeup (recipe) of the sheet
(Wet tensile x 100 %)/Dry tensile
1) Gravity and light vacuum 2) Heavy vacuum 3) Mechanical pressure 4) Heat

19. What are the types of press rolls?

20. Refining (Beating)
1) Retention aids 2) Sizing agents 3) Fillers 4) Strength additives 5) Dyes & pigments 6) pH control additives 7) Specialty additives 8) Operational improvement additives
A harsh mechanical action carried out on fibers to: 1) Collapse them into flat papermaking ribbons and 2) Fibrillate the outer surface of the fiber to increase bonding area and sheet strength
Manifold
All water used to dilute the thick stock is recovered from the wet end and used to dilute more stock

21. Other names for the headbox approach system
1) Open 2) Air- padded 3) Hydraulic
All water used to dilute the thick stock is recovered from the wet end and used to dilute more stock
Rolling friction between surfaces
1) The wet end flow loop 2) The white water recirculation loop 3) The basis weight control loop

22. Three basic parts of the stock preparation area are...
The component makeup (recipe) of the sheet
When refining pulverizes the primary and outer secondary layers of the fiber wall
1) Blending and furnish control 2) Control of consistency 3) Refining
Basis weight valve

23. Consistency
1) Open 2) Air- padded 3) Hydraulic
1) Overall stock flow 2) Angle of flow 3) Speed of flow 4) Amount of flow at different points across the machine
Wire
The solids (dry) fraction of a papermaking slurry or pulp sample

24. Refining reduces the _______ of the stock
1) Overall stock flow 2) Angle of flow 3) Speed of flow 4) Amount of flow at different points across the machine
1) Metering of THICK STOCK for basis weight control 2) Dispersion and dilution of the THICK STOCK into THIN STOCK 3) Uniform distribution of the THIN STOCK across the width of the machine
Drainage rate (freeness)
Basis weight valve

25. What are the three main types of paper machine wet ends?
1) Gravity section 2) Vacuum section 3) Press section
1) The wet end flow loop 2) The white water recirculation loop 3) The basis weight control loop
Basis weight valve
A harsh mechanical action carried out on fibers to: 1) Collapse them into flat papermaking ribbons and 2) Fibrillate the outer surface of the fiber to increase bonding area and sheet strength

26. The headbox must distribute the stock evenly onto the ____
Basis weight valve
Disk refiners
All water used to dilute the thick stock is recovered from the wet end and used to dilute more stock
Wire

27. How are papermaking fines produced?
When refining pulverizes the primary and outer secondary layers of the fiber wall
Gets stock into the headbox
1) Plain 2) Blind drilled 3) Grooved ('vented') 4) Vacuum (suction) press
Manifold

28. The ____ is the 'gatekeeper' - it sets the basis weight of the sheet
1) Open 2) Air- padded 3) Hydraulic
Basis weight valve
1) Gravity and light vacuum 2) Heavy vacuum 3) Mechanical pressure 4) Heat
A harsh mechanical action carried out on fibers to: 1) Collapse them into flat papermaking ribbons and 2) Fibrillate the outer surface of the fiber to increase bonding area and sheet strength