MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Food Packaging Technology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Recycled paper requires more chemicals and causes more harm to environment than new paper. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
________ is the mostly used chemical for bleaching of chemical pulp. |
| A. | Sodium Hydroxide |
| B. | Potassium Iodide |
| C. | Hydrogen Peroxide |
| D. | Sodium Disulphite |
| Answer» D. Sodium Disulphite | |
| 3. |
The term ECF in chlorine bleaching stands for _________ bleaching. |
| A. | Elemental chromium free |
| B. | Estimated chlorine free |
| C. | Essential chlorine free |
| D. | Elemental chlorine free |
| Answer» E. | |
| 4. |
The term TCF in chlorine bleaching stands for_________bleaching. |
| A. | Total chlorine free |
| B. | Total cadmium free |
| C. | Total chromium free |
| D. | Total calcium free |
| Answer» B. Total cadmium free | |
| 5. |
The residual lignin content in chemical pulp accounts for_______ of the mass. |
| A. | 8%–9% |
| B. | 5%–8% |
| C. | 2%–5% |
| D. | 1%–2% |
| Answer» D. 1%–2% | |
| 6. |
Bleaching by hydrogen peroxide occurs at ____ °C for _____h. |
| A. | 40°C, 2 h |
| B. | 60°C, 2.5 h |
| C. | 40°C, 3 h |
| D. | 10°C, 4 h |
| Answer» D. 10°C, 4 h | |
| 7. |
________ is the term used for bleaching of mechanical pulp. |
| A. | Whitening |
| B. | Lightening |
| C. | Chroming |
| D. | Brightening |
| Answer» E. | |
| 8. |
_________ present in lignin is responsible for its color. |
| A. | Chromophores |
| B. | Corona |
| C. | Chomosomes |
| D. | Tonoplast |
| Answer» B. Corona | |
| 9. |
Bleaching improves the strength of the pulp. |
| A. | True |
| B. | False |
| Answer» C. | |
| 10. |
Which of the following component is majorly responsible for color of the pulp? |
| A. | Cellulose |
| B. | Lignin |
| C. | Hemicellulose |
| D. | Pectin |
| Answer» C. Hemicellulose | |
| 11. |
Which of the following is the primary objective of bleaching? |
| A. | To increase strength |
| B. | To maximize yield |
| C. | To increase brightness |
| D. | To remove lignin |
| Answer» D. To remove lignin | |
| 12. |
Arrange the following processes in the right order from beginning to end in the paper making process.i. Bleachingii. Pulpingiii. Screeningiv. Digestionv. Washing |
| A. | i,ii,iii,iv,v |
| B. | ii,iv,v,iii,i |
| C. | ii,v,iv,i,iii |
| D. | v,iv,iii,ii,i |
| Answer» C. ii,v,iv,i,iii | |
| 13. |
After steaming at ______ pressure, the chips are brought to the digester pressure of ______ kPa. |
| A. | Low, 500 |
| B. | High, 500 |
| C. | High, 1000 |
| D. | Low, 1000 |
| Answer» E. | |
| 14. |
Which of the following is the primary function of digestion? |
| A. | To separate the fibers |
| B. | To produce a well cooked pulp |
| C. | To bleach the pulp |
| D. | To increase the strength of the pulp |
| Answer» C. To bleach the pulp | |
| 15. |
______ is the process after pulping. |
| A. | Rolling |
| B. | Bleaching |
| C. | Digestion |
| D. | Sheeting |
| Answer» D. Sheeting | |