Fluid Mechanics - Study Mode
[#276] Shear stress in a fluid flowing in a round pipe
Correct Answer
(C) Is zero at the centre and varies linearly with the radius
[#277] Select the wrong statement pertaining to flow of an incompressible fluid through a venturimeter.
Correct Answer
(C) Venturimeter occupies less space than an orificemeter
[#278] Two fluids are flowing through two similar pipes of the same diameter. The Reynold's number is same. For the same flow rate if the viscosity of a fluid is reduced to half the value of the first fluid, the pressure drop will
Correct Answer
(B) Decrease
[#279] A bed of spherical particles (specific gravity 2.5) of uniform size 1500 μm is 0.5 m in diameter and 0.5 m high. In packed bed state, the porosity may be taken as 0.4. Ergun's equation for the above fluid-particle system (in SI units) is given below : Δ P/L = 375 x 10 3 V OM + 10.94 x 10 6 V 2 OM (SI units) If water is to be used as the fluidising medium, the minimum fluidisation velocity, V OM is
Correct Answer
(B) 16 mm/s
[#280] A venturimeter can not be used for the direct measurement of
Correct Answer
(D) All of the above