MCQOPTIONS
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MCQOPTIONS
This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Mechanical Operations knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Maximum size reduction in a ball mill is done by the _________ action. |
| A. | Attrition |
| B. | Compression |
| C. | Impact |
| D. | Cutting |
| Answer» D. Cutting | |
| 2. |
Sphericity for a non-spherical particle is given by ______ |
| A. | 6V/DS |
| B. | V/6DS |
| C. | DS/V |
| D. | V/DS |
| Answer» B. V/6DS | |
| 3. |
Addition of filter aid to the slurry before filtration is done to ______ of the cake. |
| A. | Porosity increases |
| B. | Compressibility coefficient increases |
| C. | Porosity decreases |
| D. | Compressibility coefficient decreases |
| Answer» B. Compressibility coefficient increases | |
| 4. |
MAXIMUM_SIZE_REDUCTION_IN_A_BALL_MILL_IS_DONE_BY_THE___________ACTION.?$ |
| A. | Attrition |
| B. | Compression |
| C. | Impact |
| D. | Cutting |
| Answer» D. Cutting | |
| 5. |
Sphericity for a non-spherical particle is given by _____? |
| A. | 6V/DS |
| B. | V/6DS |
| C. | DS/V |
| D. | V/DS |
| Answer» B. V/6DS | |
| 6. |
Addition of filter aid to the slurry before filtration is done to ______ of the cake? |
| A. | Porosity increases |
| B. | Compressibility coefficient increases |
| C. | Porosity decreases |
| D. | Compressibility coefficient decreases |
| Answer» B. Compressibility coefficient increases | |
| 7. |
Vibrating screens have capacity in the range of tons/ft2 of ____ mm mesh size. |
| A. | 0.2 to 0.8 |
| B. | 4 to 25 |
| C. | 50 to 100 |
| D. | 100 to 250 |
| Answer» B. 4 to 25 | |
| 8. |
The cake resistance increases steadily with the time of filtration in plate and frame filter employing constant________ filtration. |
| A. | Rate |
| B. | Temperature |
| C. | Flow |
| D. | Density |
| Answer» B. Temperature | |
| 9. |
The controlling resistance in the rotary drum vacuum filter is the _____ resistance. |
| A. | Piping |
| B. | Cake |
| C. | Filter medium |
| D. | Rate |
| Answer» C. Filter medium | |
| 10. |
The specific cake resistance for compressible sludge, is a function of the pressure drop _____ |
| A. | Over cake |
| B. | Over medium |
| C. | overall |
| D. | Rate |
| Answer» B. Over medium | |
| 11. |
During filtration operation the filtrate mainly encounters the resistance of the _____ |
| A. | Filter medium |
| B. | Cake |
| C. | Channel |
| D. | No resistance |
| Answer» C. Channel | |
| 12. |
The filtrate flow rate in constant pressure filtration _____ |
| A. | Continuously increases |
| B. | Continuously decreases |
| C. | Constant throughout |
| D. | No effect |
| Answer» C. Constant throughout | |
| 13. |
Width and speed of a conveyer belt depends upon the ____ of the material. |
| A. | Lump size |
| B. | Bulk density |
| C. | Pressure |
| D. | Temperature |
| Answer» D. Temperature | |