🏗️Civil Engineering MCQs
Civil Engineering MCQs
479 MCQs361
True one-dimensional flow occurs when___________________?
Athe direction and magnitude of the veiocity at all points are identical
Bthe velocity of successive fluid par-ticles, at any point, is the same at suc-cessive periods of time
Cthe magnitude and direction of the velocity do not change from point to point in the fluid
Dthe fluid particles move in plane or parallel planes and the streamline pat-terns are identical in each plane E. velocity, depth, pressure etc. change from point to point in the fluid flow
362
Flow of water in a pipe about 3 meters in diameter can be measured by_________________?
Aorifice plate
Bventuri
Crotameter
Dpitot tube E. nozzle
363
Rotameter is a device used to measure____________________?
Aabsolute pressure
Bvelocity of fluid
Cflow
Drotation E. velocity of air
364
Total pressure on a lmxlm gate immersed vertically at a depth of 2 m below the free water surface will be ___________________?
A1000 kg
B4000 kg
C2000 kg
D8000 kg E. 16000 kg
365
The normal stress is same in all directions at a point in a fluid ___________________?
Aonly when the fluid is frictionless
Bonly when the fluid is incompressible and has zero viscosity
Cwhen there is no motion of one fluid layer relative to an adjacent layer
Dirrespective of the motion of one fluid layer relative to an adjacent layer E. in case of an ideal fluid
366
Poise is the unit of________________?
Asurface tension
Bcapillarity
Cviscosity
Dshear stress in fluids E. buoyancy
367
The resultant upward pressure of the fluid on an immersed body is called__________________?
Aupthrust
Bbuoyancy
Ccenter of pressure
Dall the above are correct E. none of above is correct
368
Non uniform flow occurs when ____________________?
Athe direction and magnitude of the velocity at all points are identical
Bthe velocity of successive fluid par-ticles, at any point, is the same at suc-cessive periods of time
Cthe magnitude aricf direction of the velocity do not change from point to point in the fluid
Dthe fluid particles move in plane or parallel planes and the streamline pat-terns are identical in each plane E. velocity, depth, pressure, etc. change from point to point in the fluid flow
369
Gradually varied flow is____________________?
Asteady uniform
Bnon-steady non-uniform
Cnon-steady uniform
Dsteady non-uniform E. true one-dimensional
370
During the opening of a valve in a pipe line, the flow is___________________?
Asteady
Bunsteady
Cuniform
Dlaminar E. free vortex type