Mechanical Engineering : Hydraulic And Fluid Machines QUESTIONS AND ANSWERS :: part7 : 11 to 15
Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
11.The pressure in the air space above an oil (sp. gr. 0. surface in a tank is 0.1 kg/cm". The pressure at 2.5 m below the oil surface will be |
| 2 metres of water column |
| 3 metres of water column |
| 3.5 metres of water column |
| 4 m of water column |
| none of the above. |
12.Rotameter is a device used to measure |
| absolute pressure |
| velocity of fluid |
| flow |
| rotation |
| velocity of air. |
13.For measuring flow by a venturimeter, if should be installed in |
| vertical line |
| horizontal line |
| inclined line with flow downward |
| inclined line with upward flow\ |
| in any direction and in any location. |
14.In an immersed body, centre of pressure is |
| at the centre of gravity |
| above the centre of gravity |
| below be centre of gravity |
| could be above or below e.g. depend�ing on density of body and liquid |
| unpredictable. |
15.Flow occurring in a pipeline when a valve is being opened is |
| steady |
| unsteady |
| laminar |
| vortex |
| rotational. |
More Hydraulic And Fluid Machines QUESTIONS AND ANSWERS available in next pages
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