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. |
_____ is having the property of transmitting electric force without conduction. |
| A. | Damper |
| B. | Pyrolytic |
| C. | Para electric |
| D. | Dielectric |
| Answer» E. | |
| 2. |
When the surfaces of two dissimilar materials are brought into contact each receive a surface charge, this phenomena is called _____ |
| A. | Contact electrification |
| B. | Similar electrification |
| C. | Bypass contact |
| D. | Central attraction |
| Answer» B. Similar electrification | |
| 3. |
Which of the following is based on the surface charge? |
| A. | Magnetic separator |
| B. | Electrostatic separator |
| C. | Ball mill |
| D. | Camber separator |
| Answer» C. Ball mill | |
| 4. |
WHICH_OF_THE_FOLLOWING_IS_BASED_ON_THE_SURFACE_CHARGE??$ |
| A. | Magnetic separator |
| B. | Electrostatic separator |
| C. | Ball mill |
| D. | Camber separator |
| Answer» B. Electrostatic separator | |
| 5. |
When_the_surfaces_of_two_dissimilar_materials_are_brought_into_contact_each_receive_a_surface_charge,_this_phenomena_is_called______$ |
| A. | Contact electrification |
| B. | Similar electrification |
| C. | Bypass contact |
| D. | Central attraction |
| Answer» E. | |
| 6. |
A 100 mesh screen and 2700 area resembles, which of the drum separators? |
| A. | High speed high intensity |
| B. | High speed low intensity |
| C. | Low speed high intensity |
| D. | Low speed low intensity |
| Answer» C. Low speed high intensity | |
| 7. |
Dry magnetic separators can handle feed up to _____ |
| A. | 5 T/hr |
| B. | 2 T/hr |
| C. | 10 T/hr |
| D. | 12 T/hr |
| Answer» C. 10 T/hr | |
| 8. |
Magnetic filters can handle up to _____ |
| A. | 2000 gal/hr |
| B. | 1500 gal/hr |
| C. | 1000 gal/hr |
| D. | 800 gal/hr |
| Answer» C. 1000 gal/hr | |
| 9. |
Electromagnetic field controls are necessary for _____ |
| A. | Grate magnets |
| B. | Metal detectors |
| C. | Magnetic drums |
| D. | Cobbing trims |
| Answer» B. Metal detectors | |
| 10. |
For magnetic drums, area covered is around ____ |
| A. | 1800 |
| B. | 1650 |
| C. | 3600 |
| D. | 1000 |
| Answer» D. 1000 | |
| 11. |
Burden depth |
| A. | Correction factor |
| B. | Kynch formula |
| C. | Crab’s rule |
| Answer» C. Crab‚Äö√Ñ√∂‚àö√ë‚àö¬•s rule | |
| 12. |
The height of suspension is determined by _____ |
| A. | Particle weight |
| B. | Particle size |
| C. | Magnetic field |
| D. | Storage |
| Answer» C. Magnetic field | |