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Civil Engineering Objective Questions { Hydraulics }

400. Total energy line is
A. pressure head
B. datum head
C. kinetic head
D. All the above.
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401.  A nozzle is fitted at the end of a pipe whose length is 320 m and diameter is 10 cm. If the value off = 0.01, the diameter of the nozzle for the maximum transmission of power through the nozzle is
A. 2.4 cm
B. 2.5 cm
C. 2.6 cm
D. 2.7 cm.
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402. The pressure rise due to water hammer depends upon
A. the velocity of flow of water in the pipe
B. the length of pipe
C. time taken to close the valve
D. the elasticity of the pipe material
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403.  The maximum vacuum created at the summit of a syphon is
A. 2.7 m of water
B. 7.4 m of water
C. 5.5 m of water
D. none.
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404. The dimensions MLT-2 refers to
A. specific weight
B. force
C. discharge
D. none of these.
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405.  Pick up the correct statement from the following :
A. Dimensional homogeneity means the dimensions of each term in an equation on both sides are equal
B. Dimensionally homogeneous equations are independent of the system of units
C. In dimensionally homogeneous equation, the powers of fundamental dimensions on either side of the equation are identical
D. All the above.
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406. The ratio of inertia force of a flowing fluid and the viscous force of the liquid is called :
A. Renold's number
B. Froude's number
C. Euler's number
D. Weber's number.
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