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Civil Engineering MCQs

479 MCQs
321

An ideal flow of any fluid must fulfill the following______________?

ANewton’s law of motion
BNewton’s law of viscosity
CPascal’ law
DContinuity equation E. Boundary layer theory
322

Fluid is a substance which offers no resistance to change of_________________?

Apressure
Bflow
Cshape
Dvolume E. temperature
323

A piece of metal of specific gravity 13.6 is placed in mercury of specific gravity 13.6, what fraction of it volume is under mercury ?

Athe metal piece will simply float over the mercury
Bthe metal piece will be immersed in mercury by half
Cwhole of the metal piece will be immersed with its top surface just at mercury level
Dmetal piece will sink to the bottom E. none of the above
324

The buoyancy depends on__________________?

Amass of liquid displaced
Bviscosity of the liquid
Cpressure of the liquid displaced
Ddepth of immersion E. none of the above.
325

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
326

The total pressure on the surface of a vertical sluice gate 2 m x 1 m with its top 2 m surface being 0.5 m below the water level will be____________________?

A500 kg
B1000 kg
C1500 kg
D2000 kg E. 4000 kg.
327

If cohesion between molecules of a fluid is greater than adhesion between fluid and glass, then the free level of fluid in a dipped glass tube will be_________________?

Ahigher than the surface of liquid
Bthe same as the surface of liquid
Clower than the surface of liquid
Dunpredictable E. none of the above
328

A fluid in equilibrium can’t sustain_________________?

Atensile stress
Bcompressive stress
Cshear stress
Dbending stress E. all of the above
329

The tendency of a liquid surface to contract is due to the following property_________________?

Acohesion
Badhesion
Cviscosity
Dsurface tension E. elasticity
330

The pressure at a point in a fluid will not be same in all the directions when the fluid is________________?

Amoving
Bviscous
Cviscous and static
Dinviscous and moving E. viscous and moving
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