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Mechanical Properties of Fluids
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Question : 3 of 31
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Fill in the blanks using the word(s) from the list appended with each statement : (a) Surface tension of liquids generally ... with temperatures (increases/ decreases)(b) Viscosity of gases ... with temperature, whereas viscosity of liquids ... with temperature (increases/decreases) (c) For solids with elastic modulus of rigidity, the shearing force is proportional to ...., while for fluids it is proportional to .... (shear strain/rate of shear strain)(d) For a fluid in a steady flow, the increase in flow speed at a constriction follows...... (conservation of mass/Bernoulli’s principle)(e) For the model of a plane in a wind tunnel, turbulence occurs at a ...speed than for turbulence for an actual plane (greater/smaller)
Solution:
(a) decreases (b) increases; decreases(c) shear strain; rate of shear strain(d) conservation of mass of Bernoulli’s principle (e) greater.
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