MCQOPTIONS
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MCQOPTIONS
This section includes 14 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. |
For a compressible, ideal gas, mass flow rate depends on parameters such as flow area, pressure, temperature, properties of the gas, and _________ |
| A. | Avogardo’s Number |
| B. | Mach Number |
| C. | Reynold’s Number |
| D. | Le-Grange’ Number |
| Answer» C. Reynold’s Number | |
| 2. |
When the pressure chamber is big, the flow velocities are _________ |
| A. | Large |
| B. | Negligible |
| C. | Constant |
| D. | Increasing |
| Answer» C. Constant | |
| 3. |
Converging-diverging nozzle is also known as __________ |
| A. | Pascal nozzle |
| B. | Bernouille’s nozzle |
| C. | Toricelli’s nozzle |
| D. | de Laval’ nozzle |
| Answer» E. | |
| 4. |
When a gas is pushed through a pipe, the gaseous molecules are _________ by the pipe’s walls |
| A. | Attracted |
| B. | Absorbed |
| C. | Deflected |
| D. | Dissipated |
| Answer» D. Dissipated | |
| 5. |
FOR_A_COMPRESSIBLE,_IDEAL_GAS,_MASS_FLOW_RATE_DEPENDS_ON_PARAMETERS_SUCH_AS_FLOW_AREA,_PRESSURE,_TEMPERATURE,_PROPERTIES_OF_THE_GAS,_AND__________?$ |
| A. | Avogardo’s Number |
| B. | Mach Number |
| C. | Reynold’s Number |
| D. | Le-Grange’ Number |
| Answer» C. Reynold‚Äö√Ñ√∂‚àö√ë‚àö¬•s Number | |
| 6. |
WHEN_THE_PRESSURE_CHAMBER_IS_BIG,_THE_FLOW_VELOCITIES_ARE__________?$ |
| A. | Large |
| B. | Negligible |
| C. | Constant |
| D. | Increasing |
| Answer» C. Constant | |
| 7. |
Converging-diverging nozzle is also known as _________? |
| A. | Pascal nozzle |
| B. | Bernouille’s nozzle |
| C. | Toricelli’s nozzle |
| D. | de Laval’ nozzle |
| Answer» E. | |
| 8. |
Gas flows through the nozzle from an area of _____ pressure (called the chamber) to one of _____ pressure |
| A. | High, low |
| B. | Low, high |
| C. | Same, same |
| D. | Constant, Infinite |
| Answer» B. Low, high | |
| 9. |
To refrain from separation in subsonic nozzles, the expansion angle must not be more than _____ |
| A. | 10 degrees |
| B. | 20 degrees |
| C. | 30 degrees |
| D. | 40 degrees |
| Answer» B. 20 degrees | |
| 10. |
The stagnation state is obtained after a _____________ to zero velocity. |
| A. | Accelerating |
| B. | Decelerating |
| C. | Equilibrium |
| D. | Exponential increase |
| Answer» C. Equilibrium | |
| 11. |
In fluid dynamics, the velocity of the fluid in the stagnation point is |
| A. | Zero |
| B. | Infinite |
| C. | Non-existent |
| D. | Negative |
| Answer» B. Infinite | |
| 12. |
Isentropic nozzle flow states about the movement of a gas or fluid through a narrow orifice without an increase or decrease in ___________ |
| A. | Pressure |
| B. | Energy |
| C. | Displacement |
| D. | Entropy |
| Answer» E. | |
| 13. |
If the speed of sound is much ________ than that of the gas, the gas density will stay constant. |
| A. | Smaller |
| B. | Larger |
| C. | Equal to |
| D. | Non-existent |
| Answer» C. Equal to | |
| 14. |
When a gas is pushed through a pipe, the gaseous molecules are _________ by the pipe’s walls |
| A. | Attracted |
| B. | Absorbed |
| C. | Deflected |
| D. | Dissipated |
| Answer» D. Dissipated | |