Essay about Chemical Engg. Fluid Mechanics MCQ's

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Id Question The fluid property, due to which, mercury does not wet the glass is A surface tension B viscosity C cohesion D adhesion Answer A Marks 1 Unit A1 Id Question The dimension of dynamic viscosity is A ML-1T-1 B L2T-1 C LT-2 D ML-1T-2 Answer A Marks 2 Unit A1 Id Question The fluid, in which the shearing stress within it is proportional to the velocity gradient across the sheared section, is called a __________ fluid. A Bingham B Newtonian C perfect D none of these Answer C Marks 1 Unit A1 Id Question Pick out the wrong statement. A The shear stress at the pipe (diameter = D, length = L) wall in case of laminar flow of Newtonian fluids is B In the equation, the…show more content…
A exponentially B linearly C logarithmically D none of these Answer C Marks 1 Unit A1 Id Question A fluid is the one, which A cannot remain at rest under the action of shear force. B continuously expands till it fills any container. C is incompressible. D permanently resists distortion. Answer A Marks 1 Unit A1 Id Question Which of the following properties of a fluid is responsible for offering resistance to shear ? A Surface tension. B Viscosity. C Specific gravity. D All (a), (b), and (c). Answer B Marks 1 Unit A1 Id Question In an incompressible flow of fluid, the fluid A temperature remains constant. B compressibility is greater than zero. C density does not change with pressure &temperature. D is frictionless. Answer C Marks 1 Unit a1 Id Question A fluid is one which A Cannot remain at rest under the action of shear force B Continuously expands till it fills any container C Is incompressible D Permanently resists distortion Answer A Marks 1 Unit A1 Id Question In an incompressible fluid, density A is greatly affected by moderate changes in pressure B is greatly affected only by moderate changes in temperature C Remains unaffected with moderate change in temperature and preesure D Is sensible to changes in both temperature and pressure Answer A Marks 1 Unit A1 Id Question A fluid is a substance

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