MCQOPTIONS
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MCQOPTIONS
This section includes 13 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. |
The speed at which frequency of rotation matches the natural frequency is called ____ |
| A. | Final speed |
| B. | Optimum speed |
| C. | Critical speed |
| D. | Operating speed |
| Answer» D. Operating speed | |
| 2. |
Calculate Ss, if Diameter is given as 10 inches and has 200 rpm also consider water as medium? |
| A. | 0.005 |
| B. | 0.00822 |
| C. | 0.00026 |
| D. | 0.0058 |
| Answer» C. 0.00026 | |
| 3. |
Calculate F, if weight of assembly is 100 lb. and 5 ft. in radius having 20 rpm speed? |
| A. | 3.41 |
| B. | 5.21 |
| C. | 6.82 |
| D. | 2.323 |
| Answer» B. 5.21 | |
| 4. |
What does the following equation represents? |
| A. | Diameter of basket |
| B. | Stress force |
| C. | Force of inertia |
| D. | Force of tangentView Answer |
| Answer» C. Force of inertia | |
| 5. |
The following equation represents the _______F=0.000341 WrN2 |
| A. | Magnitude of gravity |
| B. | Magnitude of Centrifuge |
| C. | Force of inertia |
| D. | Force of tangent |
| Answer» C. Force of inertia | |
| 6. |
DIAMETER_OF_BASKET?$ |
| A. | Stress force |
| B. | Force of inertia |
| C. | Force of tangent |
| Answer» C. Force of tangent | |
| 7. |
Calculate_F,_if_weight_of_assembly_is_100_lb._and_5_ft._in_radius_having_20_rpm_speed?$ |
| A. | 3.41 |
| B. | 5.21 |
| C. | 6.82 |
| D. | 2.323 |
| Answer» D. 2.323 | |
| 8. |
The following equation represents the _______ |
| A. | |
| B. | Magnitude of gravity |
| C. | Magnitude of Centrifuge |
| Answer» C. Magnitude of Centrifuge | |
| 9. |
Any rotating machine in which centrifugal force is applied is called as _______ |
| A. | Mixer |
| B. | Rotator |
| C. | Centrifuge |
| D. | Gravitate |
| Answer» D. Gravitate | |
| 10. |
Prayon filter has _______ percent of effective area. |
| A. | 85 |
| B. | 48 |
| C. | 47 |
| D. | 50 |
| Answer» B. 48 | |
| 11. |
The prayon continuous filter, filters a surface of about ________ |
| A. | 1 to 20 m<sup>2</sup> |
| B. | 2 to 40 m<sup>2</sup> |
| C. | 30 to 40 m<sup>2</sup> |
| D. | 100 to 150 m<sup>2</sup> |
| Answer» C. 30 to 40 m<sup>2</sup> | |
| 12. |
In liquid-liquid operations, centrifugal force is employed in |
| A. | Settling |
| B. | Filtration |
| C. | Sedimentation |
| D. | Both setting and filtration |
| Answer» E. | |
| 13. |
What is the speed of a horizontal belt filter? |
| A. | 0.05 m/s |
| B. | 0.1 m/s |
| C. | 0.5 m/s |
| D. | 10 m/s |
| Answer» B. 0.1 m/s | |