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This section includes 16 Mcqs, each offering curated multiple-choice questions to sharpen your Pulp Paper knowledge and support exam preparation. Choose a topic below to get started.
1. |
What is the name of the equation? R = kS2 ((1 – E)V) / (E3) |
A. | Kozeny-Carman eq |
B. | D’Arcy eq |
C. | CSF eq |
D. | Sizing eq |
Answer» B. D’Arcy eq | |
2. |
What’s the name of the equation? |
A. | Kozeny-Carman eq |
B. | D’Arcy eq |
C. | CSF eq |
D. | Sizing eqView Answer |
Answer» C. CSF eq | |
3. |
_________ is a function of fiber length, retention aids employed, and turbulence and is controlled by the size of the floes. |
A. | Formation |
B. | Drainage |
C. | Retention |
D. | Flocculation |
Answer» B. Drainage | |
4. |
Soft floes may decrease opacity and the quality of formation in the final sheet. |
A. | True |
B. | False |
Answer» C. | |
5. |
_________ will withstand a moderately high level of shear and remain intact during the sheet forming process. |
A. | Hard floes |
B. | Soft floes |
C. | Drainage |
D. | Formation |
Answer» B. Soft floes | |
6. |
What is the hidden part? |
A. | First pass measurement |
B. | First pass retention measurement |
C. | Colloidal retention |
D. | Synthetic polymer retention aidsView Answer |
Answer» C. Colloidal retention | |
7. |
First—pass (or one pass) retention is often separated into various sub-categories of total solids including fibre retention, fines retention, and ash (i.e., filler) retention. |
A. | True |
B. | False |
Answer» B. False | |
8. |
Overall retention should be _________ to keep the process economical. As long as excess white H2O is minimal and excess white H2O is treated to remove solid materials. |
A. | 10-20% |
B. | 90-95% |
C. | 25-35% |
D. | 45-50% |
Answer» C. 25-35% | |
9. |
SOFT_FLOES_MAY_DECREASE_OPACITY_AND_THE_QUALITY_OF_FORMATION_IN_THE_FINAL_SHEET.?$ |
A. | True |
B. | False |
Answer» C. | |
10. |
__________is_a_function_of_fiber_length,_retention_aids_employed,_and_turbulence_and_is_controlled_by_the_size_of_the_floes.$ |
A. | Formation |
B. | Drainage |
C. | Retention |
D. | Flocculation |
Answer» B. Drainage | |
11. |
_________ will withstand a moderately high level of shear and remain intact during the sheet forming process? |
A. | Hard floes |
B. | Soft floes |
C. | Drainage |
D. | Formation |
Answer» B. Soft floes | |
12. |
_________ of the fines fraction is of central importance, the Britt jar is a useful tool because it measures retention through a screen with 76 film holes without formation of a mat. |
A. | Formation |
B. | Drainage |
C. | Retention |
D. | Flocculation |
Answer» C. Retention | |
13. |
First pass measurement |
A. | First pass retention measurement |
B. | Colloidal retention |
C. | Synthetic polymer retention aids |
Answer» B. Colloidal retention | |
14. |
First—pass (or one pass) retention is often separated into various sub-categories of total solids including fibre retention, fines retention, and ash (i.e., filler) retention.$ |
A. | True |
B. | False |
Answer» B. False | |
15. |
Overall retention should be _________ to keep the process economical. As long as excess white H2O is minimal and excess white H2O is treated to remove solid materials. |
A. | 10-20% |
B. | 90-95% |
C. | 25-35% |
D. | 45-50% |
Answer» C. 25-35% | |
16. |
_________ occurs by direct mechanical trapping of relatively large particles or by colloidal interactions that result in the flocculation of fines with large. |
A. | Formation |
B. | Drainage |
C. | Retention |
D. | Flocculation |
Answer» D. Flocculation | |