- A. Supersonics, as with projectiles and jet propulsion
- B. Full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc.
- C. Simultaneous motion through two fluids where there is a surface of discontinuity, gravity force, and wave making effects, as with ship’s hulls
- D. All of the above
Hydraulics and Fluid Mechanics in ME
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Mach number is significant in_____.
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The ratio of absolute viscosity to mass density is known as_____.
- A. Specific viscosity
- B. Viscosity index
- C. Kinematic viscosity
- D. Coefficient of viscosity
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A glass tube of smaller diameter is used while performing an experiment for the capillary rise of water because_____.
- A. It is easier to see through the glass tube
- B. Glass tube is cheaper than a metallic tube
- C. It is not possible to conduct this experiment with any other tube
- D. All of the above
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A nozzle placed at the end of a water pipe line discharges water at a_____.
- A. Low pressure
- B. High pressure
- C. Low velocity
- D. High velocity
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The force of buoyancy is always _____ the weight of the liquid displaced by the body.
- A. Equal to
- B. Less than
- C. More than
- D. None of these
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For measuring flow by a Venturimeter, if should be installed in_____.
- A. Vertical line
- B. Horizontal line
- C. Inclined line with flow downward
- D. In any direction and in any location
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Which of the following statement is correct?
- A. The centrifugal pump is suitable for large discharge and smaller heads
- B. The centrifugal pump requires less floor area and simple foundation as compared to reciprocating pump
- C. The efficiency of centrifugal pump is less as compared to reciprocating pump
- D. All of the above
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The angle of contact in case of a liquid depends upon_____.
- A. The nature of the liquid and the solid
- B. The material which exists above the free surface of the liquid
- C. Both of die above
- D. Any one of the above
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A venturi-flume is used to measure_____.
- A. Pressure of liquid
- B. Discharge of liquid
- C. Pressure difference between two points in a channel
- D. Pressure difference between two points in a pipe
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The angle of taper on draft tube is_____.
- A. Greater than 15°
- B. Greater than 8°
- C. Greater than 5°
- D. Less than 8°