MCQOPTIONS
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MCQOPTIONS
This section includes 10 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. |
In Propeller the angle that the blade makes with the plane of impeller rotation is _____ |
| A. | Greater than 180 |
| B. | Between 90 to 180 |
| C. | Less than 90 |
| D. | Between 145 to 200 |
| Answer» D. Between 145 to 200 | |
| 2. |
Baffles are often used to reduce tangential motion of fluid. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Agitation and Mixing are synonymous. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
The factors on which curved blade turbines are selected? |
| A. | Low shear required and high pumping capacity |
| B. | High shear required and low pumping capacity |
| C. | High shear required and high pumping capacity |
| D. | Low shear required and low pumping capacity |
| Answer» B. High shear required and low pumping capacity | |
| 5. |
Open turbines works on which of the following principle? |
| A. | Electrostatic |
| B. | Centrifugal force |
| C. | Frictional force |
| D. | Static force |
| Answer» C. Frictional force | |
| 6. |
Which of the following impeller is best suited in mixing operation in lead, rubber and plastics? |
| A. | Propeller marine |
| B. | Flat blade turbine |
| C. | Anchor |
| D. | Paddle |
| Answer» C. Anchor | |
| 7. |
Which of the following impeller works best in low viscous system? |
| A. | Shrouded turbine |
| B. | Propeller |
| C. | Anchor |
| D. | Paddle / pitched turbines |
| Answer» C. Anchor | |
| 8. |
Which of the following combination of the flow pattern can be observed in an open turbine? |
| A. | Radial only |
| B. | Axial only |
| C. | Radial and axial |
| D. | Mixed |
| Answer» D. Mixed | |
| 9. |
The range of mixing operation of the turbine based on viscosity in a batch process is _____ (centipoise) |
| A. | 10<sup>5</sup> |
| B. | 10<sup>4</sup> |
| C. | 10<sup>3</sup> |
| D. | 10<sup>2</sup> |
| Answer» B. 10<sup>4</sup> | |
| 10. |
Which of the following impellers is not an example of axial flow impeller? |
| A. | Propeller |
| B. | Hydrofoils |
| C. | Pitched turbines |
| D. | Ruston |
| Answer» E. | |