Hydraulics And Fluid Mechanics In Me - Study Mode
[#126] The specific speed (N s ) of a centrifugal pump is given by
Correct Answer
(B) $$frac{{{ ext{N}}sqrt { ext{Q}} }}{{{{ ext{H}}^{frac{3}{4}}}}}$$
[#127] In an outward flow reaction turbine
Correct Answer
(B) The water enters at the centre of the wheel and then flows towards the outer periphery of the wheel
[#128] In an inward flow reaction turbine
Correct Answer
(C) The water enters the wheel at the outer periphery and then flows towards the center of the wheel
[#129] 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
Correct Answer
(B) 0.75 B.H.P
[#130] The efficiency of jet propulsion for a ship with inlet orifices at right angles to the direction of motion of ship is given by
Correct Answer
(A) $$frac{{2left( {{{ ext{V}}_{ ext{r}}} - { ext{v}}}
ight){ ext{v}}}}{{{ ext{V}}_{ ext{r}}^2}}$$