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. |
The principle of floatation of bodies is based on the premise of |
| A. | Metacentre |
| B. | Newtons first law |
| C. | Newtons law of viscosity |
| D. | None of the mentioned |
| Answer» B. Newtons first law | |
| 2. |
Meta centre always lies below the centre of gravity |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
The metacentric height is affected by the change in density. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
A uniform body of size 4 m long * 2.5 m wide * 1.5 m deep floats in water. What is the weight of the body if depth of immersion is 1 m ? |
| A. | 147.1 kN |
| B. | 294.3 kN |
| C. | 73.5 kN |
| D. | 588.6 kN |
| Answer» B. 294.3 kN | |
| 5. |
A rectangular pontoon is 5 m long, 3 m wide and 1.40 m high. The depth of immersion of the pontoon is 0.60 m in seawater. If the centre of gravity is 0.7 m above the bottom of the pontoon, determine the metacentric height. The density for seawater = 1045 kg/m3. |
| A. | 0.135 |
| B. | 0.271 |
| C. | 0.543 |
| D. | 0.068 |
| Answer» B. 0.271 | |
| 6. |
META_CENTRE_ALWAYS_LIES_BELOW_THE_CENTRE_OF_GRAVITY?$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 7. |
The_principle_of_floatation_of_bodies_is_based_on_the_premise_of$ |
| A. | Metacentre |
| B. | Newtons first law |
| C. | Newtons law of viscosity |
| D. | None of the mentioned |
| Answer» B. Newtons first law | |
| 8. |
For a completely immersed body, the metacentric height is always zero? |
| A. | True |
| B. | False |
| Answer» C. | |
| 9. |
Proper explanation for metacentre is: |
| A. | Point at which line of action of force meets the normal axis of body when it is given angular displacement |
| B. | Intersection of line passing through new centre of buoyancy and centre of gravity. |
| C. | point about which body starts oscillating when it is given small angular displacement |
| D. | All of the mentioned |
| Answer» E. | |
| 10. |
In case of spherically shaped bodies of uniform mass distribution and completely immersed in fluid and floating, the centre of buoyancy coincides with centre of gravity. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 11. |
A solid cylinder of diameter 4.5 has a height of 2.5 metres. Find the meta-centric height of the cylinder when it is floating in water with its axis vertical. The sp. gr. of the cylinder=0.45. |
| A. | 1.9 m |
| B. | 3.8 m |
| C. | 5.7 m |
| D. | .95 m |
| Answer» B. 3.8 m | |
| 12. |
A block of material of specific gravity 0.45 floats in water. Determine the meta-centric height of the block if its size is 3 m * 2 m* 0.8 m. |
| A. | 0.506 m |
| B. | 0.376 m |
| C. | 1.012 m |
| D. | 0.127 m |
| Answer» C. 1.012 m | |
| 13. |
A uniform body of size 4 m long * 2.5 m wide * 1.5 m deep floats in water. What is the weight of the body if depth of immersion is 1 m ? |
| A. | 147.1 kN |
| B. | 294.3 kN |
| C. | 73.5 kN |
| D. | 588.6 kN |
| Answer» B. 294.3 kN | |
| 14. |
A rectangular pontoon is 5 m long, 3 m wide and 1.40 m high. The depth of immersion of the pontoon is 0.60 m in seawater. If the centre of gravity is 0.7 m above the bottom of the pontoon, determine the metacentric height. The density for seawater = 1045 kg/m3. |
| A. | 0.135 |
| B. | 0.271 |
| C. | 0.543 |
| D. | 0.068 |
| Answer» B. 0.271 | |