![Mcqmate logo](https://mcqmate.com/images/logos/logo-black.png)
![Mcqmate logo](https://mcqmate.com/images/logos/logo-white.png)
McqMate
Chapters
1. |
The intensity of pressure p is related to specific weight w of the liquid and vertical depth h of the point by the equation |
A. | p = wh |
B. | h = pw |
C. | p = wh2 |
D. | p = wh3. |
Answer» A. p = wh |
2. |
The point of application of the total pressure on the surface is |
A. | Centroid of the surface |
B. | Centre of pressure |
C. | Either of the above |
D. | None of the above. |
Answer» B. Centre of pressure |
3. |
If A is the area of the immersed surface, w is the specific weight of the liquid and ͞x is the depth of horizontal surface from the liquid surface, then the total pressure P on the surface is given by |
A. | p = wA2 ͞x |
B. | p = w2A ͞x |
C. | p = wA ͞x |
D. | p = wA ͞x2 |
Answer» C. p = wA ͞x |
4. |
The side of the dam to which the water from the river or the stream approaches is known as |
A. | Downstream |
B. | Upstream |
C. | Either of the above |
D. | None of the above. |
Answer» B. Upstream |
5. |
Lock gates are provided to |
A. | Change the water level in a canal or river for irrigation |
B. | Store water for irrigation purpose |
C. | Either of the above |
D. | None of the above. |
Answer» A. Change the water level in a canal or river for irrigation |
6. |
The term........ means the study of pressure exerted by a fluid at rest. |
A. | Hydrostatics |
B. | Fluid mechanics |
C. | Continuum |
D. | Kinetics |
Answer» A. Hydrostatics |
7. |
The tendency for an immersed body to be lifted up in the fluid, due to an upward force opposite to the action of gravity is known as |
A. | Buoyancy |
B. | Centre of buoyancy |
C. | Buoyant force |
D. | None of the above. |
Answer» A. Buoyancy |
8. |
The magnitude of the buoyant force can be determined by |
A. | Newton’s second law of motion |
B. | Archimedes’ principle |
C. | Principle of moments |
D. | None of the above. |
Answer» B. Archimedes’ principle |
9. |
When a body is immersed in a fluid, partially or completely, the force of buoyancy is equal to |
A. | The weight of the body |
B. | The weight of the fluid displaced by the body |
C. | The weight of the volume of the fluid equal to the volume of body |
D. | None of the above. |
Answer» B. The weight of the fluid displaced by the body |
10. |
The point of application of the force of buoyancy on the body is known as |
A. | Centre of gravity |
B. | Centre of buoyancy |
C. | Metacenter |
D. | None of the above. |
Answer» B. Centre of buoyancy |
11. |
“When a body is immersed in a fluid either wholly or partially, it is buoyed or lifted up by a force which is equal to the weight of fluid displaced by the body”. This principle was enunciated by |
A. | Archimedes |
B. | Newton |
C. | Pascal |
D. | Kirchhoff. |
Answer» A. Archimedes |
12. |
A floating body is in stable equilibrium when |
A. | The metacentre is below its centre of gravity |
B. | The metacentre is above its centre of gravity |
C. | The metacentric height is zero. |
D. | Its centre of gravity is below the centre of buoyancy. |
Answer» B. The metacentre is above its centre of gravity |
13. |
An ice-cube is floating in glass of water. As the cube melts the water level |
A. | Remain constant |
B. | Falls |
C. | Rises |
D. | None of the above. |
Answer» B. Falls |
14. |
Metacentric height can be determined by |
A. | Only analytical method |
B. | Only experimental method |
C. | Both (a) and (b) |
D. | None of the above. |
Answer» C. Both (a) and (b) |
15. |
If a body does not return to its original position from the slightly displaced angular position and heels farther away, when given a small angular displacement; such an equilibrium is called |
A. | Stable equilibrium |
B. | Unstable equilibrium |
C. | Neutral equilibrium |
D. | Any of the above |
Answer» B. Unstable equilibrium |
Done Reading?