The hydraulic gradient line is always parallel to the centre line of the pipe.

More Questions from Hydraulics and Fluid Mechanics

• The volume of a fluid __________ as the pressure increases.
• A differential manometer is used to measure
• The surface tension of mercury at normal temperature is __________ that of water.
• The D-Alembert's principle is used for changing the dynamic equilibrium of a fluid mass, into a static equilibrium.
• When a vertical wall is subjected to pressures due to liquid on both sides, the resultant pressure is the __________ of the two pressures.
• Coefficient of velocity is defined as the ratio of
• A flow is called sonic, if the Mach number is unity.
• The property of a liquid which controls its rate of flow is called viscosity.
• An error of 1% in measuring head over the crest of the notch (H) will produce an error of __________ in discharge over a triangular notch,
• A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. Which of the following statement is correct?

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