Fluid Mechanics - Study Mode

[#466] A particle A of diameter 10 microns settles in an oil of specific gravity 0.9 and viscosity 10 poise under Stoke's law. A particle B with diameter 20 microns settling in the same oil will have a settling velocity
Correct Answer

(B) One fourth as that of A

[#467] A rectangular surface 3' x 4', has the lower 3 edge horizontal and 6' below a free oil surface (sp. gr. 0.8). The surface inclination is 300 with the horizontal. The force on one side of the surface is(where, y = specific weight of water)
Correct Answer

(B) 48y

[#468] Dimension of surface tension is (where, F = force, L = length)
Correct Answer

(A) F.L -1

[#469] In fluid flow, cavitation is caused, if the
Correct Answer

(D) Flow pressure approaches its vapor pressure at the prevailing temperature

[#470] When the momentum of one fluid is used for moving another fluid, such a device is called a/an
Correct Answer

(A) Jet pump