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. 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
The component makeup (recipe) of the sheet
1) Gravity and light vacuum 2) Heavy vacuum 3) Mechanical pressure 4) Heat

2. The 6 D's of Papermaking
1) Overall stock flow 2) Angle of flow 3) Speed of flow 4) Amount of flow at different points across the machine
The component makeup (recipe) of the sheet
Gets stock into the headbox
1) Dose 2) Dilute 3) Disperse 4) Distribute 5) Dewater 6) Dry

3. What are the main forces used to remove water on a paper machine wet end?
Gets stock into the headbox
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
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

4. The headbox is actually made up of the _____ and the ______
Wire
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
Consistency & flow rate

5. How are papermaking fines produced?
When refining pulverizes the primary and outer secondary layers of the fiber wall
Consistency & flow rate
Delivers stock onto the wire
Gets stock into the headbox

6. Refining is done via ___________
The component makeup (recipe) of the sheet
1) Dose 2) Dilute 3) Disperse 4) Distribute 5) Dewater 6) Dry
1) Overall stock flow 2) Angle of flow 3) Speed of flow 4) Amount of flow at different points across the machine
Rolling friction between surfaces

7. Three basic parts of the stock preparation area are...
1) Blending and furnish control 2) Control of consistency 3) Refining
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
All water used to dilute the thick stock is recovered from the wet end and used to dilute more stock
1) Gravity section 2) Vacuum section 3) Press section

8. The headbox must distribute the stock evenly onto the ____
When refining pulverizes the primary and outer secondary layers of the fiber wall
1) Blending and furnish control 2) Control of consistency 3) Refining
Disk refiners
Wire

9. What are the three main types of paper machine wet ends?
Wire
1) Gravity section 2) Vacuum section 3) Press section
Disk refiners
Manifold (distributor) & the actual headbox

10. What does the manifold do?
Gets stock into the headbox
The component makeup (recipe) of the sheet
When refining pulverizes the primary and outer secondary layers of the fiber wall
1) Open 2) Air- padded 3) Hydraulic

11. 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
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
Gets stock into the headbox

12. Furnish
Gets stock into the headbox
The solids (dry) fraction of a papermaking slurry or pulp sample
Refers to the weight per unit surface area (one side) of a paper sheet and is critical quality attribute
The component makeup (recipe) of the sheet

13. What are the types of press rolls?

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

14. Other names for the headbox approach system
All water used to dilute the thick stock is recovered from the wet end and used to dilute more stock
(Wet tensile x 100 %)/Dry tensile
Manifold (distributor) & the actual headbox
1) The wet end flow loop 2) The white water recirculation loop 3) The basis weight control loop

15. The 'white water loop'
Manifold
Drainage rate (freeness)
Refers to the weight per unit surface area (one side) of a paper sheet and is critical quality attribute
All water used to dilute the thick stock is recovered from the wet end and used to dilute more stock

16. What are the three types of headboxes?
1) The wet end flow loop 2) The white water recirculation loop 3) The basis weight control loop
1) Blending and furnish control 2) Control of consistency 3) Refining
Consistency & flow rate
1) Open 2) Air- padded 3) Hydraulic

17. Strong - smooth - printable paper CANNOT be made without the use of _____
1) Gravity section 2) Vacuum section 3) Press section
Refining
All water used to dilute the thick stock is recovered from the wet end and used to dilute more stock
Wire

18. Wet strength formula
Delivers stock onto the wire
(Wet tensile x 100 %)/Dry tensile
Gets stock into the headbox
1) Blending and furnish control 2) Control of consistency 3) Refining

19. The ____ is the 'gatekeeper' - it sets the basis weight of the sheet
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
Disk refiners
Basis weight valve
Refers to the weight per unit surface area (one side) of a paper sheet and is critical quality attribute

20. What are the basic categories/types of additives used for papermaking?
The solids (dry) fraction of a papermaking slurry or pulp sample
The component makeup (recipe) of the sheet
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
Basis weight valve

21. Most modern refining is done using _____
1) Plain 2) Blind drilled 3) Grooved ('vented') 4) Vacuum (suction) press
(Wet tensile x 100 %)/Dry tensile
Gets stock into the headbox
Disk refiners

22. Refining (Beating)
Gets stock into the headbox
1) The wet end flow loop 2) The white water recirculation loop 3) The basis weight control loop
(Wet tensile x 100 %)/Dry tensile
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

23. In order to control the basis weight of the sheet - the ____ and _____ of the streams must be measured and controlled
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
Consistency & flow rate
All water used to dilute the thick stock is recovered from the wet end and used to dilute more stock
When refining pulverizes the primary and outer secondary layers of the fiber wall

24. Refining reduces the _______ of the stock
Drainage rate (freeness)
Basis weight valve
The solids (dry) fraction of a papermaking slurry or pulp sample
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

25. Consistency
The solids (dry) fraction of a papermaking slurry or pulp sample
1) Gravity and light vacuum 2) Heavy vacuum 3) Mechanical pressure 4) Heat
Refining
1) Dose 2) Dilute 3) Disperse 4) Distribute 5) Dewater 6) Dry

26. Basis Weight
1) Gravity section 2) Vacuum section 3) Press section
1) Overall stock flow 2) Angle of flow 3) Speed of flow 4) Amount of flow at different points across the machine
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

27. The _____ must get the same amount of fiber spread evenly across the headbox
Refining
Manifold
1) Blending and furnish control 2) Control of consistency 3) Refining
Wire

28. What does the headbox do?
The component makeup (recipe) of the sheet
The solids (dry) fraction of a papermaking slurry or pulp sample
Refers to the weight per unit surface area (one side) of a paper sheet and is critical quality attribute
Delivers stock onto the wire