MCQOPTIONS
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MCQOPTIONS
This section includes 12 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. |
What are the speeds of colloid mixer? |
| A. | 3000 to 20,000 rpm |
| B. | 1000 to 1500 rpm |
| C. | 5000 to 10,000 rpm |
| D. | 500 to 1000 rpm |
| Answer» B. 1000 to 1500 rpm | |
| 2. |
The main function of the colloid mill is to ____ |
| A. | Ensure mixing |
| B. | Ensure agglomeration |
| C. | Ensure drying |
| D. | Ensure separation |
| Answer» C. Ensure drying | |
| 3. |
THE_MAIN_FUNCTION_OF_THE_COLLOID_MILL_IS_TO_____?$ |
| A. | Ensure mixing |
| B. | Ensure agglomeration |
| C. | Ensure drying |
| D. | Ensure separation |
| Answer» C. Ensure drying | |
| 4. |
What_are_the_speeds_of_colloid_mixer?$ |
| A. | 3000 to 20,000 rpm |
| B. | 1000 to 1500 rpm |
| C. | 5000 to 10,000 rpm |
| D. | 500 to 1000 rpm |
| Answer» B. 1000 to 1500 rpm | |
| 5. |
At what speeds shear mixers can works? |
| A. | 3000 to 15,000 rpm |
| B. | 1000 to 1500 rpm |
| C. | 5000 to 10,000 rpm |
| D. | 500 to 1000 rpm |
| Answer» B. 1000 to 1500 rpm | |
| 6. |
If the solid is not too coarse, the solid can be suspended in _____ |
| A. | Liquid |
| B. | Gas |
| C. | Mixer |
| D. | Steam |
| Answer» B. Gas | |
| 7. |
The cone mixer has a rotating angle of ____ |
| A. | 20 – 500 |
| B. | 10 – 900 |
| C. | 0 – 3600 |
| D. | 00 |
| Answer» D. 00 | |
| 8. |
A double cone mixer consists of a vessel with two cones _____ |
| A. | Base to base |
| B. | Base to top |
| C. | Top to top |
| D. | Top to base |
| Answer» B. Base to top | |
| 9. |
Which of the following has lowest efficiency? |
| A. | Agitator mixer |
| B. | Propeller mixer |
| C. | Impellor mixer |
| D. | Tumbling mixer |
| Answer» B. Propeller mixer | |
| 10. |
Degree of mixing approaches, its limiting equilibrium value ____ |
| A. | Elliptically |
| B. | Asymptotically |
| C. | Exponentially |
| D. | Bilaterally |
| Answer» C. Exponentially | |
| 11. |
Due to overfilling, efficiency is _____ |
| A. | Constant |
| B. | Infinity |
| C. | Maximum |
| D. | Minimum |
| Answer» E. | |
| 12. |
When more than two components are to be mixed, they should always be mixed in _____ order of weight. |
| A. | Ascending |
| B. | Descending |
| C. | Maximum |
| D. | Minimum |
| Answer» B. Descending | |