Related Questions

A jet of water is striking at the centre of a curved vane moving with a uniform velocity in the direction of jet. For the maximum efficiency, the vane velocity is ________ of the jet velocity
A One-half
B One-third
C Two-third
D Three-fourth
The resistance wire used in a hot wire anemometer for conducting electrical current is made of
A Copper
B Tungsten
C Chromium
D Aluminium
Hot wire anemometer is used to measure
A Pressure in gases
B Liquid discharge
C Pressure in liquids
D Gas velocities
Hot wire anemometer is used to measure the
A Velocity of liquids
B Temperature of liquids
C Velocity of gases
D Pressure of liquids
Hot wire anemometer is used for the measurement of
A Flow rates of fluids
B Flow rates of granular solids
C Very high temperature
D Thermal conductivity of gases
The optimum value of vane exit angle for a centrifugal pump impeller is
A 10-15°
B 20-25°
C 30-40°
D 50-60°
For centrifugal pump impeller, the maximum value of the vane exit angle is
A 10° to 15°
B 15° to 20°
C 20° to 25°
D 25° to 30°
In centrifugal pumps, cavitation occurs, when pressure of the impeller eye or vane becomes
A Less than atmospheric pressure
B More than liquid vapor pressure
C Less than liquid vapor pressure
D More than atmospheric pressure

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