MCQOPTIONS
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MCQOPTIONS
This section includes 9 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. |
Chips are steamed well above the glass transition temperature of lignin, for one to two minutes until final pressure is on the order of __ MPascal. |
| A. | t14-20 |
| B. | t4-7 |
| C. | t19-25 |
| D. | t3-4 |
| Answer» C. t19-25 | |
| 2. |
What is the range of yield in the Masonite process? |
| A. | t50-60% |
| B. | t40-30% |
| C. | t80-90% |
| D. | t10-20% |
| Answer» D. t10-20% | |
| 3. |
What is the temperature range at which chips are steamed in the Masonite process? |
| A. | t1500-1690 degree Fahrenheit |
| B. | t35-80 degree Fahrenheit |
| C. | t155-480 degree Fahrenheit |
| D. | t335-480 degree Fahrenheit |
| Answer» E. | |
| 4. |
What is the other name of Masonite process? |
| A. | tIgnition process |
| B. | tSteam explosion |
| C. | tMason process |
| D. | tTMP |
| Answer» C. tMason process | |
| 5. |
The lignin is sufficiently soft that the separation occurs at __ lamella, and fibers are left with just a hard lignin surface. |
| A. | tUpper |
| B. | tLower |
| C. | tMiddle |
| D. | tOutskirt |
| Answer» D. tOutskirt | |
| 6. |
What is the steam pressure range at which the wood chips are pre-heated? |
| A. | t50-200 degree celcius |
| B. | t300-340 degree celcius |
| C. | t1500-2000 degree celcius |
| D. | t150-170 degree celcius |
| Answer» E. | |
| 7. |
What is the pressure range at which the wood chips are pre-streamed? |
| A. | t1300-1950 kPa |
| B. | t550-950 kPa |
| C. | t42-78 kPa |
| D. | t1285-1950 kPa |
| Answer» C. t42-78 kPa | |
| 8. |
Asplund process involves pre-steaming wood chips at temperature above the glass transition temperature of lignin. |
| A. | tTrue |
| B. | tFalse |
| Answer» B. tFalse | |
| 9. |
The Asplund process was developed about 30 years prior to TMP. |
| A. | tTrue |
| B. | tFalse |
| Answer» B. tFalse | |