Hydraulics Questions

• The best side slope for most economical trapezoidal section, is
• In an open tube, free surface of mercury remains
• Back water curve is caused if
• If total head available at the inlet of pipe and f1 is the loss of head due to friction in the pipe, the maximum efficiency of transmission of power (ηmax) is
• Manometers are used to measure
• Discharge over an ogee weir remains the same as that of
• An error of 1% in measuring the head of water over the crest of a triangular notch, produces an error in the discharge which is equal to
• The following is not a laminar flow
• Which one of the following equation is applicable to unsteady flow in open channels :
• The magnitude of water hammer in a pipe depends upon
• To avoid an interruption in the flow of a syphon, an air vessel is provided
• The equation for the viscosity, is suggested
• A cylindrical vessel 40 cm high is revolved about its vertical axis so that the water touches the bottom when it just spills out. If the radius of the cylinder is 5 cm, the angular velocity of rotation, is
• A non-uniform steady flow is through
• A fluid particle may possess the displacement of
• In Newton's viscosity equation , the coefficient (μ) is known as coefficient of
• An ideal fluid is
• Flow in pipes is turbulent if Reynold number is
• Pick up the correct statement from the following :
• For pipes not running full, the hydraulic mean depth is given by