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This section includes 15 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. |
Drop leg is ideally a vertical drop. It’s horizontal section is a needed, and it should be exactly horizontally placed at least __________m below the washer. |
A. | 1 |
B. | 5 |
C. | 55 |
D. | 7 |
Answer» E. | |
2. |
The vacuum supplied by drop leg for the first stage is of range ___________ |
A. | 12kPa |
B. | 15kPa |
C. | 20kPa |
D. | 24kPa |
Answer» E. | |
3. |
A ___________ is used to siphon the water from the washer so that a vacuum pump is not usually required. |
A. | Drop hand |
B. | Drop leg |
C. | Drop finger |
D. | Drop thumb |
Answer» C. Drop finger | |
4. |
The soda loss in pulp is traditionally measured as ___________ pulp on a Na2SO4 basis. |
A. | Kg/lb |
B. | Lb/kg |
C. | Lb/ton |
D. | Ton/lb |
Answer» D. Ton/lb | |
5. |
Pulp washers are also known as ‘Black stock washers’. |
A. | True |
B. | False |
Answer» B. False | |
6. |
THE_VACUUM_SUPPLIED_BY_DROP_LEG_FOR_THE_FIRST_STAGE_IS_OF_RANGE____________?$ |
A. | 12kPa |
B. | 15kPa |
C. | 20kPa |
D. | 24kPa |
Answer» E. | |
7. |
Drop_leg_is_ideally_a_vertical_drop._It’s_horizontal_section_is_a_needed,_and_it_should_be_exactly_horizontally_placed_at_least___________m_below_the_washer.$# |
A. | 1 |
B. | 5 |
C. | 55 |
D. | 7 |
Answer» E. | |
8. |
A ___________ is used to siphon the water from the washer so that a vacuum pump is not usually required? |
A. | Drop hand |
B. | Drop leg |
C. | Drop finger |
D. | Drop thumb |
Answer» C. Drop finger | |
9. |
The soda loss in pulp is traditionally measured as ___________ pulp on a Na2SO4 basis. |
A. | Kg/lb |
B. | Lb/kg |
C. | Lb/ton |
D. | Ton/lb |
Answer» D. Ton/lb | |
10. |
Low dilution factor ___________ the energy requirements of the multiple effects evaporators. |
A. | Increases |
B. | Decreases |
C. | Freezes |
D. | Skips |
Answer» C. Freezes | |
11. |
Following is the way to calculate dilution factor:- |
A. | Mass of water per unit mass of dry pulp |
B. | Mass of acid per unit mass of dry pulp |
C. | Mass of buffer solution per unit mass of dry pulp |
D. | Mass of base per unit mass of dry pulp |
Answer» B. Mass of acid per unit mass of dry pulp | |
12. |
The dilution factor is a measure amount of ___________ used in washing. |
A. | Acid |
B. | Base |
C. | Water |
D. | Salt |
Answer» D. Salt | |
13. |
Following the reason behind the removal of lignin in Pulp washers:- |
A. | To reduce bleaching chemical demand |
B. | To increase bleaching chemical demand |
C. | To maintain constant bleaching chemical demand |
D. | To freeze bleaching chemical demand |
Answer» B. To increase bleaching chemical demand | |
14. |
Pulp washers use counter-current flow between stages such that the pulp moves opposite in direction to the flow of wash water. |
A. | True |
B. | False |
Answer» C. | |
15. |
Pulp washers are also known as ‘Black stock washers’. |
A. | True |
B. | False |
Answer» B. False | |