Hydraulics Questions

• A closed cylindrical vessel of 100 cm diameter and 200 cm high is completely filled with a liquid (sp. weight 1600 kg/m3) when rotated about its vertical axis at 100 r.p.m. The total pressure on its lid, is
• To avoid the force of surface tension in an inclined manometer, the minimum angle of inclination is
• Non-over flow double curvature concrete arch, is provided in
• 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
• Barometres are used to measure
• In flow, the liquid particles may possess
• In pipe lines, a surge tank is provided
• A cylinder 3 m in diameter and 4 m long retains water one side as shown in the below figure. If the weight of the cylinder is 2000 kgf, the vertical reaction at A is
• An orifice is taken as large if
• If Re is the Renold's number, the coefficient of friction for laminar flow is
• If jet of water coming out from a nozzle with a velocity 9.81 m/s, the angle of elevation being 30°, the time to reach the highest point is
• Total head of a liquid particle in motion is the sum of
• Flow in pipes is laminar if Reynold number is
• The mouth piece shown in the below figure is generally known as
• The continuity equation
• If S is the length of the crest, H is the height of water source of a weir whose length is L and discharge is Q m3/sec, the velocity of approach Vd is
• The length of pipe is L, velocity of flow of a liquid in the pipe is V. If t is the time in second required to close the valve, the head of pressure
• In fluids, steady flow occurs when
• In a centrifugual pump casing, the flow of water leaving the impeller, is
• For critical depth of flow of water in open channels, fc the specific energy must be :