Mechanical Engineering :: Hydraulics and Fluid Mechanics
- A compound pipe of diameter d1, d2 and d3 having lengths l1, l2 and l3 is to be replaced by an equivalent pipe of uniform diameter d and of the same length (l) as that of the compound pipe. The size of the equivalent pipe is given by
- The normal stress is same in all directions at a point in a fluid
- Air vessels in reciprocating pump are used to
- The optimum value of vane exit angle for a centrifugal pump impeller is
- The specific speed (Ns) of a centrifugal pump is given by
- In an outward flow reaction turbine
- In an inward flow reaction turbine
- If a pump is handling water and is discharging a certain flow Q at a constant total dynamic head requiring a definite B.H.P., the same pump when handling a liquid of specific gravity 0.75 and viscosity nearly same as of water , the horse power required will be
- The efficiency of jet propulsion for a ship with inlet orifices at right angles to the direction of motion of ship is given by
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A.
The water flows parallel to the axis of the wheel |
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B.
The water enters at the centre of the wheel and then flows towards the outer periphery of the wheel |
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C.
The water enters the wheel at the outer periphery and then flows towards the centre of the wheel |
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D.
The flow of water is partly radial and partly axial |
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A.
The water flows parallel to the axis of the wheel |
|
B.
The water enters at the center of the wheel and then flows towards the outer periphery of the wheel |
|
C.
The water enters the wheel at the outer periphery and then flows towards the center of the wheel |
|
D.
The flow of water is partly radial and partly axial |