question_answer 3)

Find in the blanks using the words (s) from the test appended with each statement. (a) Surface tension of liquid 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 from While the decrease of pressure there follows from (conservation of mass / Bernoullis principle) (e) For the model of a plane in a wind tunnel, turbulence occurs at a speed for turbulence for an actual plane (greater/smaller).

Answer:

(a) decreases (b) increases; decreases (c) shear strain; rate of shear strain (d) conservation of mass ; Bernoullis principal (e) greater.