Mechanical Engineering : Hydraulic And Fluid Machines QUESTIONS AND ANSWERS :: part3 : 6 to 10
Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
6.Free surface of a liquid tends to contract to the smallest possible area due to force of |
| surface tension |
| viscosity |
| friction |
| cohesion |
| adhesion. |
7.The ratio of absolute viscosity to mass den-sity is known as |
| specific viscosity |
| viscosity index |
| kinematic viscosity |
| coefficient of viscosity |
| coefficient of compressibility. |
8.The point in the immersed body through which the resultant pressure of the liquid may be taken to act is known as |
| meta centre |
| centre of pressure |
| centre of buoyancy |
| centre of gravity |
| none of the above. |
9.Alcohol is used in manometers because |
| it has low vapour pressure |
| it is clearly visible |
| it has low surface tension |
| it can provide longer column due to low density |
| is provides suitable meniscus. |
10.Specific weight of sea water is more that of pure water because it contains |
| dissolved air |
| dissolved salt |
| suspended matter |
| all of the above |
| heavy water. |
More Hydraulic And Fluid Machines QUESTIONS AND ANSWERS available in next pages
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