MCQOPTIONS
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MCQOPTIONS
This section includes 5 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. |
Flotation is faster than ___ |
| A. | Electrostatic separator |
| B. | Purification |
| C. | Sedimentation |
| D. | Agitation |
| Answer» D. Agitation | |
| 2. |
Electrode fouling can be prevented by ________ |
| A. | Reversing Polarity |
| B. | Changing electrode |
| C. | Changing dielectric |
| D. | Nothing to change |
| Answer» B. Changing electrode | |
| 3. |
If a particle is moving in a fluid which is in laminar flow, the drag coefficient is _____ |
| A. | To that in turbulent flow |
| B. | To that in still fluid |
| C. | To that in tank |
| D. | To that in viscous |
| Answer» C. To that in tank | |
| 4. |
The drag force coefficient CD is ____ |
| A. | 2R /pu<sub>2</sub> |
| B. | 2R /pu<sub>3</sub> |
| C. | 2R /pu |
| D. | R /pu<sub>0.5</sub> |
| Answer» B. 2R /pu<sub>3</sub> | |
| 5. |
Which of the following doesn t work on the principle of flotation? |
| A. | Fagergreen machine |
| B. | D-R machine |
| C. | Agitair machine |
| D. | Norton separator |
| Answer» E. | |