78. A fluid Particle may possess the displacement of
A. translation
B. rotation
C. distortion
D. all the above.
79. In two dimensional flow the components of velocity are given by u = ax ; u = by. The stream lines will be
A. circular
B. parabolic
C. hyperbolic
D. elliptical.
80. In a two dimensional flow if the components of the velocity are u = ax ; u = by, the point where no motion occurs, is known as
A. critical point
B. neutral point
C. stagnation point
D. stationary point
81. The property of steam function iv is :
A. w is constant everwhere on any stream line
B. the flow around any path in the fluid is zero for continuous flow
C. the rate of change of w with distance in an arbitrary direction, is proportional to the component of velocity normal to that direction
D. all the above.
82. In a fluid flow a particle may posses
A. elevation energy
B. kinetic energy
C. pressure energy
D. all the above.
83. An independent mass of a fluid does not posses
A. elevation energy
B. kinetic energy
C. pressure energy
D. none of these.
84. Frictional loss of head includes the loss of energy due to
A. viscosity
B. turbulence
C. both (a) and (b)
D. none of these.
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