Welcome to your Hydraulics Mock test - 3
Take an exciting test in Hydraulics/Fluid Mechanics
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1) For the flow of liquid from an open ended tube (or nozzle) leading to the formation of spray of liquid drops, the number generally applied, is
2) To avoid an interruption in the flow of a syphon, an air vessel is provided
3) Manometers are used to measure
4) In an open tube, free surface of mercury remains
5) Shear stress is directly proportional to
6) Molecules of fluids get attracted due to
7) If velocities of fluid particles vary from point to point in magnitude and direction, as well as from instant to instant, the flow is said to be
8) The rise of the liquid along the walls of a revolving cylinder above the initial level, is
9) For exerting a pressure of 4.8 kg/cm2, the depth of oil (specific gravity 0.8), should be
10) The value of momentum correction factor (β) for a laminar flow through a circular pipe, is
11) The following is not a laminar flow
12) 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
13) Piezometers are used to measure
14) Most economical section of a triangular channel, is
15) Discharge over an ogee weir remains the same as that of
16) When no air is left below the nappe and water stream adheres to the down stream face of the weir, it is known as
17) The best side slope for most economical trapezoidal section, is
18) Fluids change the volume under external presssure due to
19) Atmospheric pressure is equal to water column head of
20) Cappoletti weir is a
21) To avoid vapourisation, pipe lines are laid over the ridge so that these are above the hydraulic gradient line, not more than
22) On an inclined plane, centre of pressure is located
23) Dimensions of the dynamic viscosity (μ) are
24) Uniform flow is said to occur when
25) f 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