Civil Engineering Hydraulics/Fluid Mechanics Mock test - 3 - CIVIL ENGINEERING OBJECTIVE

Civil Engineering Hydraulics/Fluid Mechanics Mock test – 3

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