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. |
If critical speed is 55% more of operating speed and N is 0.81, what is critical speed? |
| A. | 0.26 |
| B. | 0.81 |
| C. | 0.44 |
| D. | 1.25 |
| Answer» E. | |
| 2. |
What will be the angular velocity for a radius of 0.6 m? |
| A. | 40.4 rad/s |
| B. | 10 rad/s |
| C. | 4.04 rad/s |
| D. | 5.6 rad/s |
| Answer» D. 5.6 rad/s | |
| 3. |
WHAT_WILL_BE_THE_ANGULAR_VELOCITY_FOR_A_RADIUS_OF_0.6_M??$ |
| A. | 40.4 rad/s |
| B. | 10 rad/s |
| C. | 4.04 rad/s |
| D. | 5.6 rad/s |
| Answer» D. 5.6 rad/s | |
| 4. |
If_critical_speed_is_55%_more_of_operating_speed_and_N_is_0.81,_what_is_critical_speed?$ |
| A. | 0.26 |
| B. | 0.81 |
| C. | 0.44 |
| D. | 1.25 |
| Answer» E. | |
| 5. |
Given that R =400 mm and r = 0.03m, what is the critical speed? |
| A. | 0.18 |
| B. | 0.81 |
| C. | 0.801 |
| D. | 8.1 |
| Answer» C. 0.801 | |
| 6. |
Calculate the operating speed. If the critical speed is 35% of it and 1.05 rps? |
| A. | 3.50 |
| B. | 10.6 |
| C. | 0.5 |
| D. | 0.36 |
| Answer» E. | |
| 7. |
In a closed grinding operation, the material is passed through crusher ____ |
| A. | Once |
| B. | After recycle |
| C. | After end |
| D. | Twice |
| Answer» C. After end | |
| 8. |
Which of the following resides more energy? |
| A. | Closed Circuit |
| B. | Open circuit |
| C. | Bi-lateral |
| D. | By-pass |
| Answer» C. Bi-lateral | |
| 9. |
In an open grinding operation, the material is passed through crusher only _____ |
| A. | Once |
| B. | Twice |
| C. | Not passed |
| D. | Infinite |
| Answer» B. Twice | |
| 10. |
How is screen effectiveness defined? |
| A. | Maximum*Minimum |
| B. | Retained*Captured |
| C. | Recovery*Rejection |
| D. | Retained* Rejection |
| Answer» D. Retained* Rejection | |
| 11. |
What is the square opening between screens called? |
| A. | Aperture |
| B. | Abscissa |
| C. | Ordinate |
| D. | Footrope |
| Answer» B. Abscissa | |
| 12. |
____ is an open container usually cylindrical with uniform openings. |
| A. | Bowel |
| B. | Screen |
| C. | Magnifier |
| D. | Shredder |
| Answer» C. Magnifier | |