MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Fluid Mechanics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which among the following is the correct formula for drag? |
| A. | D = Cd * A * 0.5 * r * V2 |
| B. | D = Cd * A * 0.5 * r * V*2 |
| C. | D = Cd * A * 0.5 * r * V/2 |
| D. | D = 0.5 * r * V |
| Answer» B. D = Cd * A * 0.5 * r * V*2 | |
| 2. |
The lift force acts in _____ to the flow velocity. |
| A. | Perpendicular direction |
| B. | Same direction |
| C. | Opposite direction |
| D. | Different directions |
| Answer» B. Same direction | |
| 3. |
Drag force is affected by__________ |
| A. | Cross sectional area and smoothness |
| B. | Rigidity and density |
| C. | Pressure and temperature |
| D. | Mass |
| Answer» B. Rigidity and density | |
| 4. |
The drag force acts in _____ to the flow velocity. |
| A. | Perpendicular direction |
| B. | Same direction |
| C. | Opposite direction |
| D. | Different directions |
| Answer» D. Different directions | |
| 5. |
The three major fluid forces are Buoyancy, drag and lift. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
THE_DRAG_FORCE_ACTS_IN_______TO_THE_FLOW_VELOCITY.?$ |
| A. | Perpendicular direction |
| B. | Same direction |
| C. | Opposite direction |
| D. | Different directions |
| Answer» D. Different directions | |
| 7. |
The lift force acts in _____ to the flow velocity.$ |
| A. | Perpendicular direction |
| B. | Same direction |
| C. | Opposite direction |
| D. | Different directions |
| Answer» B. Same direction | |
| 8. |
Drag_force_is_affected_by__________$ |
| A. | Cross sectional area and smoothness |
| B. | Rigidity and density |
| C. | Pressure and temperature |
| D. | Mass |
| Answer» B. Rigidity and density | |
| 9. |
Which among the following is the correct formula for lift? |
| A. | D = Cl * A * 0.5 * r * V<sup>2</sup> |
| B. | D = Cl * A * 0.5 * r * V*2 |
| C. | D = Cl * A * 0.5 * r * V/2 |
| D. | D = 0.5 * r * V |
| Answer» B. D = Cl * A * 0.5 * r * V*2 | |
| 10. |
Which_among_the_following_is_the_correct_formula_for_drag? |
| A. | D = Cd * A * 0.5 * r * V<sup>2</sup> |
| B. | D = Cd * A * 0.5 * r * V*2 |
| C. | D = Cd * A * 0.5 * r * V/2 |
| D. | D = 0.5 * r * V |
| Answer» B. D = Cd * A * 0.5 * r * V*2 | |
| 11. |
The three major fluid forces are Buoyancy, drag and lift? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 12. |
A force that is caused due to attraction of particles in the layer of fluid bulk is called? |
| A. | Viscous force |
| B. | Inertial force |
| C. | Surface tension force |
| D. | Pressure force |
| Answer» D. Pressure force | |
| 13. |
Which among the following is the correct formula for gravitational force? |
| A. | F= Gm<sub>1</sub>m<sub>2</sub>/r<sup>2</sup> |
| B. | F= Gm<sub>1</sub>m<sub>2</sub> |
| C. | F= m<sub>1</sub>m<sub>2</sub>/r<sup>2</sup> |
| D. | F= Gm<sub>1</sub>m<sub>2</sub>/r<sup>3</sup> |
| Answer» B. F= Gm<sub>1</sub>m<sub>2</sub> | |
| 14. |
Which among the following force is developed due to resistance in its state of motion? |
| A. | Viscous force |
| B. | Inertial force |
| C. | Gravity force |
| D. | Pressure force |
| Answer» C. Gravity force | |
| 15. |
Which among the following force is developed due to resistance of a fluid flow? |
| A. | Viscous force |
| B. | Inertial force |
| C. | Gravity force |
| D. | Pressure force |
| Answer» B. Inertial force | |