Hydraulics And Fluid Mechanics In Me - Study Mode

[#251] The rise or depression of liquid in a tube due to surface tension will increase in size of tube will
Correct Answer

(D) Decrease

[#252] Casting of a centrifugal pump is designed so as to minimize
Correct Answer

(D) Loss of kinetic energy

[#253] Viscosity of water in comparison to mercury is
Correct Answer

(B) Lower

Explanation

Solution: Viscosity of water in comparison to mercury is Lower. Viscosity: It describes the internal friction of a moving fluid. A fluid with large viscosity resists motion because its molecular makeup gives it a lot of internal friction. Mercury dynamic viscosity at temperature 300K is 1.53 Water dynamic viscosity at temperature 300K is 0.89

[#254] A turbine develops 10000 kW under a head of 25 meters at 135 r.p.m. Its specific speed is
Correct Answer

(C) 241.5 r.p.m.

[#255] Gauge pressure at a point is equal to the absolute pressure __________ the atmospheric pressure.
Correct Answer

(B) Minus