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Civil Engineering Objective Questions { Hydraulics }

218.  The velocity distribution of viscous circular/pipe is :
A. hyperbolic
B. circular
C. parabolic
D. elliptical.
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219.  The shear stress distribution in viscous fluid through a circular pipe is :
A. maximum at the centre
B. maximum at the inside of surface
C. same throughout the section
D. none of these.
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220. The ratio of maximum velocity to average velocity of viscous fluid through a circular pipe is
D. 2.00.
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221.  If total head available at the inlet of pipe and f is the loss of head due to friction in the pipe, the maximum efficiency of transmission of power (imax) is
B. 2/3
C. 3/4
D. 4/5.
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222.  In steady flow, which one of the following changes with time
A. velocity
B. pressure
C. density
D. none of these.
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223.  Pick up the correct statement from the following :
A. In incompressible flow the density of a fluid remains constant
B. In compressible flow, the density of a fluid changes from point to point
C. In uniform flow, the velocity of a fluid does not change with respect to length of flow direction
D. All the above.
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224.  The discharge through a 100 mm diameter external mouth piece fitted to the side of a large vessel is 0.05948 m3/s. The head over the mouth piece is
A. 2 m
B. 2.5 m
C. 3.0 m
D. 4.0 m.
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