MCQOPTIONS
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MCQOPTIONS
This section includes 12 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. |
Higher bleaching stages are carried out in consisitencies of range____________ |
| A. | 8-10 |
| B. | 10-20 |
| C. | 15-20 |
| D. | 3-10 |
| Answer» C. 15-20 | |
| 2. |
Bleaching stages are carried out consistencies for pulp bleaching are from _________%. |
| A. | 8-10 |
| B. | 3-20 |
| C. | 3-10 |
| D. | 4-15 |
| Answer» C. 3-10 | |
| 3. |
_________ pulps are not susceptible to colour reversion. |
| A. | Chemical |
| B. | Mechanical |
| C. | Dithionite |
| D. | Hydrousulfite |
| Answer» C. Dithionite | |
| 4. |
BLEACHING_STAGES_ARE_CARRIED_OUT_CONSISTENCIES_FOR_PULP_BLEACHING_ARE_FROM__________%.?$ |
| A. | 8-10 |
| B. | 3-20 |
| C. | 3-10 |
| D. | 4-15 |
| Answer» C. 3-10 | |
| 5. |
Higher_bleaching_stages_are_carried_out_in_consisitencies_of_range____________$ |
| A. | 8-10 |
| B. | 10-20 |
| C. | 15-20 |
| D. | 3-10 |
| Answer» C. 15-20 | |
| 6. |
_________ pulps are susceptible to colour reversion. |
| A. | Chemical |
| B. | Mechanical |
| C. | Dithionite |
| D. | Hydrousulfite |
| Answer» C. Dithionite | |
| 7. |
_________ is the yellowness of pulps on exposure to air, light, heat, and fungi due to modification of residual lignin forming chromophores. |
| A. | Colour reversion |
| B. | Colour addition |
| C. | Oxidation |
| D. | Exposure |
| Answer» B. Colour addition | |
| 8. |
Brightness is a term used to describe the _________ of pulp or paper, on a scale from 0 to 100. |
| A. | Whiteness distribution |
| B. | Whitness obstructivness |
| C. | Coquettes |
| D. | Bleach |
| Answer» B. Whitness obstructivness | |
| 9. |
Bleaching mechanical pulps is called _________ to distinguish it from bleaching of chemical pulps. |
| A. | Brightening |
| B. | Bloating |
| C. | Blackening |
| D. | Branding |
| Answer» B. Bloating | |
| 10. |
_________ removal in chemical pulps leads to higher fiber-fiber bonding strength in paper, but the strong chemical pulps decrement in the length of cellulose molecules, resulting in weaker fibers. |
| A. | Softwood |
| B. | Hardwood |
| C. | Lignin |
| D. | Pulp |
| Answer» D. Pulp | |
| 11. |
Bleaching of chemical pulps is achieved by lignin addition. |
| A. | True |
| B. | False |
| Answer» C. | |
| 12. |
Bleaching is the treatment of wood (and other lignocellulosic) pulps with chemical agents to decrease their brightness. |
| A. | True |
| B. | False |
| Answer» C. | |