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Fluid Mechanics MCQ 8

1. The total energy of a liquid particle in motion is equal to
2. The absolute pressure is equal to
3. The power transmitted through the nozzle is maximum when the head lost due to friction in the pipe is __________ of the total supply head.
4. When the pressure intensity at a point is more than the local atmospheric pressure, then the difference of these two pressures is called
5. A differential manometer is used to measure
6. The hydraulic mean depth or the hydraulic radius is the ratio of
7. Coefficient of velocity is defined as the ratio of
8. A notch is used to measure __________ of liquids.
9. A flow is called sonic, if the Mach number is unity.
10. Stoke is the unit of
11. The hammer blow in pipes occurs when
12. An error of 1% in measuring head over the crest of the notch (H) will produce an error of __________ in discharge over a triangular notch,
13. When a body is placed over a liquid, it will sink down if
14. One poise is equal to
15. A flow whose streamline is represented by a curve, is called
16. A flow through a long pipe at decreasing rate is called __________ uniform flow.
17. The intensity of pressure at any point, in a liquid, is
18. The surface tension of mercury at normal temperature is __________ that of water.
19. When the Mach number is less than unity, the flow is called
20. If the depth of water in an open channel is greater than the critical depth, the flow is called
Fluid Mechanics MCQ 8
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