Mechanical Engineering : Hydraulic And Fluid Machines QUESTIONS AND ANSWERS :: part4 : 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.The capillary rise at 20�C in a clean glass tube of 1 mm bore containing water is ap-proximately |
| 1 mm |
| 5 mm |
| 10 mm |
| 20 mm |
| 30 mm. |
7.. Free surface of a liquid behaves like a sheet and tends to contract to smallest possible area due to the |
| force of adhesion |
| force of cohesion |
| force of friction |
| force of diffusion |
| none of die above. |
8.Mercury is often used in barometer because |
| it is the best liquid |
| the height of barometer will be less |
| its vapour pressure is so low that it may be neglected |
| both (b) and (c) |
| it moves easily. |
9.Newton's law of viscosity is a relationship between |
| shear stress anctthejiate of angular dis�tortion |
| shear stress and viscosity |
| shear stress, velocity and viscosity |
| pressure, velocity and viscosity |
| shear stress, pressure and rate of an-gular distortion. |
10.The peoperty by virtue of which a liquid opposes relative motion between its different layers is called |
| surface tension |
| co-efficient of viscosity |
| viscosity |
| osmosis |
| cohesion. |
More Hydraulic And Fluid Machines QUESTIONS AND ANSWERS available in next pages
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