A. Shear stress
B. Shear force
C. Average drag per unit projected area
D. None of these
0
In continuous fluidisation_________________?
0
In a free vortex, the_____________________?
A. Solids are completely entrained
B. The pressure drop is less than that for batch fluidisation
C. There is no entrainment of solids
D. Velocity of the fluid is very small
0
The location of centre of pressure, which defines the point of application of the total pressure force on the surface, can be calculated by applying the principle of moments according to which “sum of the moment of the resultant force about an axis is equal to the sum of the components about the same axis”. The centre of pressure of a rectangular surface (of width ‘w’) immersed vertically in a static mass of fluid is at a depth of (where, y = depth of the liquid) ?
A. Velocity changes linearly with radial distance
B. Flow is necessarily rotational
C. Radial component of velocity is same everywhere
D. Stream lines are not circular
0
Fluid flow through a packed bed is represented by the ______________ equation?
A. 1/(y/3)
B. 2y/3
C. 1/(y/4)
D. 3y/4
0
Air vessel of a reciprocating pump is initially filled with___________________?
A. Fanning’s
B. Ergun’s
C. Hagen-Poiseuille’s
D. None of these
0
A centrifugal pump is used to pump water through a horizontal distance of 150 m, and then raised to an overhead tank 10 m above. The pipe is smooth with an I.D of 50 mm. What head (m of water) must the pump generate at its exit E. to deliver water at a flow rate of 0.001 m3/s? The Fanning friction factor, f is 0.0062 ?
A. Atmospheric air
B. Compressed air
C. Water
D. None of these
0
Fanning friction factor equation applies to the _____________ fluid flow?
A. 10 m
B. 11 m
C. 11.8 m
D. 30 m
0
A pressure of 10 m head of water is equivalent to ______________ kN/m2?
A. Non-isothermal condition of
B. Compressible
C. Both A. and B.
D. Neither A. nor B.
0
The maximum discharge through a circular channel takes place, when the depth of the fluid flow is ______________ times the pipe diameter?
A. 98
B. 147
C. 196
D. 49
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