MCQOPTIONS
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MCQOPTIONS
This section includes 7 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. |
A simple U tube manometer connected to a pipe in which liquid is flowing with uniform speed will give which kind of pressure? |
| A. | Absolute Pressure |
| B. | Vacuum Pressure |
| C. | Gauge Pressure |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 2. |
For dynamic fluid motion in a pipe, the pressure measurement cannot be carried out accurately by manometer. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
As we go upwards, at height there is slight decrease in pressure variation. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
7.What is the variation observed in temperature in atmosphere with respect to elevation? |
| A. | It goes on decreasing with height |
| B. | It goes on increasing with height |
| C. | It first increases then decreases |
| D. | It first decreases then increases |
| Answer» E. | |
| 5. |
Why can t the density be assumed as constant for compressible fluids? |
| A. | It shows variation with temperature and pressure |
| B. | It remains constant with temperature and pressure |
| C. | It becomes almost constant at very high temperature |
| D. | None of the mentioned |
| Answer» B. It remains constant with temperature and pressure | |
| 6. |
Calculate the pressure of air at a height of 3500m from sea level where pressure and temperature of air are 10 N/cm2 and 25 respectively. The temperature lapse rate is given as 0.0065 /m. Take density of air at sea level equal to 1.2 kg/m3. |
| A. | 19.7 N/cm<sup>2</sup> |
| B. | 9.85 N/cm<sup>2</sup> |
| C. | 4.93 N/cm<sup>2</sup> |
| D. | 6.24 N/cm<sup>2</sup> |
| Answer» C. 4.93 N/cm<sup>2</sup> | |
| 7. |
Calculate the pressure at a height of 6500m above the sea level if the atmospheric pressure is 10.145 N/cm2 and temperature is 25 assuming air is incompressible. Take density of air as 1.2 kg/m3. Neglect variation of g. |
| A. | 4.98 N/cm<sup>2</sup> |
| B. | 2.49 N/cm<sup>2</sup> |
| C. | 1.24 N/cm<sup>2</sup> |
| D. | None of the mentioned |
| Answer» C. 1.24 N/cm<sup>2</sup> | |