MCQOPTIONS
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MCQOPTIONS
This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Aerodynamics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The aircraft fly in the atmosphere due to which of the following principle? |
| A. | Archimedes principle |
| B. | Bernoulli’s principle |
| C. | Gravitational force |
| D. | Newton’s law of viscosity |
| Answer» C. Gravitational force | |
| 2. |
Centre of pressure is defined as the point on the body where the resultant forces acts. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Reynold’s number is the ratio of ____________ |
| A. | Inertia force to viscous force |
| B. | Viscous force to inertia force |
| C. | Inertia force to gravity force |
| D. | Pressure force to inertia force |
| Answer» B. Viscous force to inertia force | |
| 4. |
In the equation, ∇.V=1/ v*D (v)/Dt, the term ∇.V is _________ |
| A. | change in velocity |
| B. | divergence of velocity |
| C. | volume |
| D. | velocity as a function of time |
| Answer» C. volume | |
| 5. |
CENTRE_OF_PRESSURE_IS_DEFINED_AS_THE_POINT_ON_THE_BODY_WHERE_THE_RESULTANT_FORCES_ACTS.?$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
The aircraft fly in the atmosphere due to which of the following principle?$ |
| A. | Archimedes principle |
| B. | Bernoulli’s principle |
| C. | Gravitational force |
| D. | Newton’s law of viscosity |
| Answer» C. Gravitational force | |
| 7. |
Reynold’s number is the ratio of ___________?# |
| A. | Inertia force to viscous force |
| B. | Viscous force to inertia force |
| C. | Inertia force to gravity force |
| D. | Pressure force to inertia force |
| Answer» B. Viscous force to inertia force | |
| 8. |
In which of the following does the shock wave form? |
| A. | subsonic flow |
| B. | transonic flow |
| C. | supersonic flow |
| D. | incompressible flow |
| Answer» D. incompressible flow | |
| 9. |
Which of the following is an example of Newtonian fluid? |
| A. | Water |
| B. | Plastic |
| C. | Colloids |
| D. | Gel |
| Answer» B. Plastic | |
| 10. |
Which of the following can attribute the flow of jet of oil in an unbroken stream? |
| A. | Capillarity |
| B. | Surface tension |
| C. | Temperature |
| D. | Density |
| Answer» C. Temperature | |
| 11. |
Interia force falls under which flow similarity? |
| A. | Geometric Similarity |
| B. | Kinematic Similarity |
| C. | Dynamic Similarity |
| D. | Dimensionless number |
| Answer» D. Dimensionless number | |
| 12. |
Length, Scale and Volume fall under which of the following flow similarity? |
| A. | Geometric Similarity |
| B. | Kinematic Similarity |
| C. | Dynamic Similarity |
| D. | Dimensionless number |
| Answer» B. Kinematic Similarity | |
| 13. |
In the equation, ‚àá.V=1/ v*D (v)/Dt, the term ‚àá.V is _________$ |
| A. | change in velocity |
| B. | divergence of velocity |
| C. | volume |
| D. | velocity as a function of time |
| Answer» C. volume | |
| 14. |
What is a suitable flow model for a fluid? |
| A. | Finite control volume approach |
| B. | Infinitesimal fluid element approach |
| C. | Molecular approach |
| D. | All the three models can be used based on the need |
| Answer» E. | |