Test your basic knowledge |

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. Refining is done via ___________
Wire
Rolling friction between surfaces
1) Blending and furnish control 2) Control of consistency 3) Refining
1) Dose 2) Dilute 3) Disperse 4) Distribute 5) Dewater 6) Dry

2. Strong - smooth - printable paper CANNOT be made without the use of _____
Refining
1) Plain 2) Blind drilled 3) Grooved ('vented') 4) Vacuum (suction) press
Rolling friction between surfaces
Wire

3. What are the key functions of the headbox approach system?
Basis weight valve
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
Consistency & flow rate
Drainage rate (freeness)

4. Refining (Beating)
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
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
1) Blending and furnish control 2) Control of consistency 3) Refining

5. The ____ is the 'gatekeeper' - it sets the basis weight of the sheet
1) The wet end flow loop 2) The white water recirculation loop 3) The basis weight control loop
1) Open 2) Air- padded 3) Hydraulic
Basis weight valve
Disk refiners

6. What are the three main types of paper machine wet ends?
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
1) Gravity section 2) Vacuum section 3) Press section
All water used to dilute the thick stock is recovered from the wet end and used to dilute more stock
1) The wet end flow loop 2) The white water recirculation loop 3) The basis weight control loop

7. Other names for the headbox approach system
1) Dose 2) Dilute 3) Disperse 4) Distribute 5) Dewater 6) Dry
1) The wet end flow loop 2) The white water recirculation loop 3) The basis weight control loop
Refers to the weight per unit surface area (one side) of a paper sheet and is critical quality attribute
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

8. What are the main forces used to remove water on a paper machine wet end?
1) Gravity and light vacuum 2) Heavy vacuum 3) Mechanical pressure 4) Heat
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
Refining

9. What does the headbox do?
Refining
Basis weight valve
Delivers stock onto the wire
The component makeup (recipe) of the sheet

10. Most modern refining is done using _____
The solids (dry) fraction of a papermaking slurry or pulp sample
Disk refiners
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

11. What are the basic categories/types of additives used for papermaking?
1) Plain 2) Blind drilled 3) Grooved ('vented') 4) Vacuum (suction) press
1) Gravity and light vacuum 2) Heavy vacuum 3) Mechanical pressure 4) Heat
Gets stock into the 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

12. In order to control the basis weight of the sheet - the ____ and _____ of the streams must be measured and controlled
Basis weight valve
1) The wet end flow loop 2) The white water recirculation loop 3) The basis weight control loop
1) Dose 2) Dilute 3) Disperse 4) Distribute 5) Dewater 6) Dry
Consistency & flow rate

13. Wet strength formula
Basis weight valve
(Wet tensile x 100 %)/Dry tensile
1) The wet end flow loop 2) The white water recirculation loop 3) The basis weight control loop
The component makeup (recipe) of the sheet

14. The headbox can be adjusted to control what?
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
1) Overall stock flow 2) Angle of flow 3) Speed of flow 4) Amount of flow at different points across the machine
Delivers stock onto the wire
Manifold (distributor) & the actual headbox

15. 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) Open 2) Air- padded 3) Hydraulic
Drainage rate (freeness)
1) Gravity section 2) Vacuum section 3) Press section

16. Furnish
1) The wet end flow loop 2) The white water recirculation loop 3) The basis weight control loop
The component makeup (recipe) of the sheet
1) Plain 2) Blind drilled 3) Grooved ('vented') 4) Vacuum (suction) press
Disk refiners

17. The _____ must get the same amount of fiber spread evenly across the headbox
The solids (dry) fraction of a papermaking slurry or pulp sample
(Wet tensile x 100 %)/Dry tensile
Manifold
1) Blending and furnish control 2) Control of consistency 3) Refining

18. Basis Weight
Refers to the weight per unit surface area (one side) of a paper sheet and is critical quality attribute
1) Blending and furnish control 2) Control of consistency 3) Refining
Manifold
When refining pulverizes the primary and outer secondary layers of the fiber wall

19. The headbox must distribute the stock evenly onto the ____
1) Plain 2) Blind drilled 3) Grooved ('vented') 4) Vacuum (suction) press
Rolling friction between surfaces
Consistency & flow rate
Wire

20. What are the three types of headboxes?
When refining pulverizes the primary and outer secondary layers of the fiber wall
(Wet tensile x 100 %)/Dry tensile
1) Open 2) Air- padded 3) Hydraulic
Consistency & flow rate

21. The 6 D's of Papermaking
1) Dose 2) Dilute 3) Disperse 4) Distribute 5) Dewater 6) Dry
Manifold (distributor) & the actual headbox
Delivers stock onto the wire
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

22. Three basic parts of the stock preparation area are...
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
Manifold
1) Blending and furnish control 2) Control of consistency 3) Refining
1) Dose 2) Dilute 3) Disperse 4) Distribute 5) Dewater 6) Dry

23. What does the manifold do?
Wire
Gets stock into the headbox
Basis weight valve
Refers to the weight per unit surface area (one side) of a paper sheet and is critical quality attribute

24. 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
Manifold (distributor) & the actual headbox
1) Dose 2) Dilute 3) Disperse 4) Distribute 5) Dewater 6) Dry
Drainage rate (freeness)

25. The 'white water loop'
Manifold (distributor) & the actual headbox
All water used to dilute the thick stock is recovered from the wet end and used to dilute more stock
Basis weight valve
The solids (dry) fraction of a papermaking slurry or pulp sample

26. Consistency
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
The solids (dry) fraction of a papermaking slurry or pulp sample
1) Gravity and light vacuum 2) Heavy vacuum 3) Mechanical pressure 4) Heat

27. What are the types of press rolls?

28. How are papermaking fines produced?
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) 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
When refining pulverizes the primary and outer secondary layers of the fiber wall
(Wet tensile x 100 %)/Dry tensile