MCQOPTIONS
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MCQOPTIONS
This section includes 14 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 is the laboratory test defined for heavy medium separation? |
| A. | Float and sink test |
| B. | Weight test |
| C. | Bubble test |
| D. | Forth test |
| Answer» B. Weight test | |
| 2. |
The ratio of sizes of equally falling particles is called ___ |
| A. | Reflux ratio |
| B. | Reduction ratio |
| C. | Settling ratio |
| D. | Steeling ratio |
| Answer» D. Steeling ratio | |
| 3. |
When the particle have the same terminal velocity, they are said to be ___ |
| A. | Kinematical falling |
| B. | Partially falling |
| C. | Equally falling |
| D. | Free falling |
| Answer» C. Equally falling | |
| 4. |
When carried correct calculation the following equation results in ___ρs (1-ε)+ρf ε |
| A. | Final density |
| B. | Bulk density |
| C. | Bulk Volume |
| D. | Final Volume |
| Answer» C. Bulk Volume | |
| 5. |
What does the below equation represent? Cf=[1-dp/Dc ]2.25 |
| A. | Francis factor |
| B. | Newton factor |
| C. | Belly factor |
| D. | Nauman factorView Answer |
| Answer» B. Newton factor | |
| 6. |
WHEN_THE_PARTICLE_HAVE_THE_SAME_TERMINAL_VELOCITY,_THEY_ARE_SAID_TO_BE____?$ |
| A. | Kinematical falling |
| B. | Partially falling |
| C. | Equally falling |
| D. | Free falling |
| Answer» D. Free falling | |
| 7. |
The_ratio_of_sizes_of_equally_falling_particles_is_called____$ |
| A. | Reflux ratio |
| B. | Reduction ratio |
| C. | Settling ratio |
| D. | Steeling ratio |
| Answer» B. Reduction ratio | |
| 8. |
When carried correct calculation the following equation results in __? |
| A. | +ρ<sub>f</sub> ε |
| B. | Final density |
| C. | Bulk density |
| D. | Bulk Volume |
| Answer» C. Bulk density | |
| 9. |
25 |
| A. | Francis factor |
| B. | Newton factor |
| C. | Belly factor |
| D. | Nauman factor |
| Answer» C. Belly factor | |
| 10. |
Which of the following can mostly affect the flotation process? |
| A. | Pressure |
| B. | Temperature |
| C. | pH |
| D. | Rate of reaction |
| Answer» D. Rate of reaction | |
| 11. |
Which of the following is the right order? |
| A. | Forth > Modifier > Collector |
| B. | Forth < Modifier < Collector |
| C. | Forth > Collector > Modifier |
| D. | Forth < Collector < Modifier |
| Answer» E. | |
| 12. |
Surfaces in either cases are manipulated using ____ |
| A. | Changer |
| B. | Modifiers |
| C. | Striker |
| D. | Maroekater |
| Answer» C. Striker | |
| 13. |
Which of the following is a collector? |
| A. | Sodium ethyl Xanthate |
| B. | Pine oil |
| C. | Timber oil |
| D. | Cocoa oil |
| Answer» C. Timber oil | |
| 14. |
Collectors forms ____ |
| A. | Films |
| B. | Forth |
| C. | Bubbles |
| D. | Scale |
| Answer» B. Forth | |