A. The S.I. unit of dynamic viscosity
B. The S.I. unit of kinematic viscosity
C. Equivalent to one poise
D. Equivalent to one stoke
Related Mcqs:
- In Newton’s law range, the drag co-efficient for the motion of spherical particle in a stationary fluid is___________________?
A. 0.44
B. 0.044
C. 4.4
D. 44 - Prandtl mixing length is___________________?
A. Applicable to laminar flow problems
B. A universal constant
C. Zero at the pipe wall
D. None of these - An ideal fluid is___________________?
A. Frictionless & incompressible
B. One, which obeys Newton’s law of viscosity
C. Highly viscous
D. None of these - The vent valve provided in a liquid handling centrifugal pump is___________________?
A. Generally a needle valve
B. Used to release any gases that might be vapour locking the pump
C. Helpful in easy removal of samples
D. All A., B. and C. - A stream line is___________________?
A. Fixed in space in steady flow
B. Always the path of particle
C. Drawn normal to the velocity vector at every point
D. A line connecting the mid points of flow cross-section - Creeping flow around a sphere is defined, when particle Reynolds number is___________________?
A. < 2100
B. < 0.1
C. > 2.5
D. < 500 - In frictional fluid flow, the quantity, (P/ρ) + (V2/2gc) + gz/gc) is___________________?
A. Constant along a streamline
B. Not constant along a streamline
C. Increased in the direction of flow
D. None of these - The hydraulic diameter of an annulus of inner and outer radii Ri and Ro respectively is___________________?
A. 4(Ro-Ri)
B. √(Ro-Ri)
C. 2(Ro-Ri)
D. Ro + Ri - In case of a pipe of constant cross-sectional area, the maximum fluid velocity obtainable is___________________?
A. The velocity of sound
B. Dependent on its cross-sectional area
C. Dependent on fluid viscosity
D. Dependent on fluid density - For an ideal fluid flow, Reynolds number is___________________?
A. 2100
B. 100
C. 0
D. ∞
