Fluid Mechanics & Solids handling Mcqs
This set of Chemical Engineering Multiple Choice Questions & Answers (MCQs) focuses on “ Fluid Mechanics & Solid handling”. These Mcqs are chosen from a collection of most authoritative and best reference books on Chemical Fluid Mechanics & Solids handling. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, University and College entrance exams, Jobs and interviews. One should practice our MCQS to assimilate Fluid Mechanics & Solids handling comprehensively.
32. Absolute viscosity expressed in poises is converted to the SI unit of viscosity by multiplication by
1
0.1
0.01
0.001
33. In converting from the poise to lb/ft.hr one multiplies by
2.04
0.41
2.42
145.2
34. To convert for the stoke to ft2/s one multiplies by
1-Jan
(30.48)2
(30.48)-2
144
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35. The numerical value of gc. Newtons law proportionality factor is
32.174 lbm.ft/lbf.s2
9.806 kg.m/kgf.s2
1 kg.m/N.s2
Any of these answers
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36. For ? = 2.49 Poise sp.gr = 0.83 v in Stokes is
2.07
0.3
3
3 x 10-3
37. For v = 3 St and p = 0.80 g/cm3 in N.s/m2 is
0.375
3.75
0.24
2.4
38. The viscosity of a gas
Increases with increase in temperature
Decreases with increase in temperature
Remains unaffected with change in temperature
Is greater than the viscosity of a liquid
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39. The viscosity of a liquid
Remains unaffected with change in temperature
Decreases with increase in temperature
Increases with increase in temperature
Is dependent on pressure only
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40. The property of a fluid by virtue of which it offers resistance to shear is known as
Density
Surface tension
Viscosity
Vapor pressure
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41. The law similar to Newtons law viscosity used in the solid mechanics is called
Newtons second law of motion
Archimedes principle
Hookes law
Newtons third law of motion
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42. An ideal fluid is one which
Is very viscous
Is frictionless and incompressible
Has negligible surface tension
Obeys Newtons law of viscosity
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43. A Newtonian fluid is one which
Is frictionless and incompressible
Has a linear relationship between the magnitude of applied shear stress and the resulting rate of deformation
Has a nonlinear relationship between the magnitude of spplied shear stress and the resulting rate of deformation
Has a vapor pressure of 1 N/m2 at 25?C.
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44. Fluid continuum is a concept in which
The actual molecular structure is replaced by a hypothetical continuous medium
Fluid particles are widely scattered in space
Fluid is non-homogeneous
Fluid density is very low
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45. An incompressible flow is one in which
The fluid is frictionless
The fluid compressibility is greater than zero
The density does not change with pressure and temperature
The temperature of fluid remains constant
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