🏗️Civil Engineering MCQs
Civil Engineering MCQs
479 MCQs291
The peoperty by virtue of which a liquid opposes relative motion between its different layers is called_________________?
Asurface tension
Bco-efficient of viscosity
Cviscosity
Dosmosis E. cohesion
292
To avoid an interruption in the flow of a syphon, an air vessel is provided______________?
Aat the inlet
Bat the outlet
Cat the summit
Day nay point between inlet and outlet E. none of the above
293
If the surface of liquid is convex, men_________________?
Acohesion pressure is negligible
Bcohesion pressure is decreased
Ccohesion pressure is increased
Dthere is no cohesion pressure E. none of the above
294
Rain drops are spherical because of____________________?
Aviscosity
Bair resistance
Csurface tension forces
Datmospheric pressure E. none of the above
295
The angle of contact in case of a liquid depends upon____________________?
Athe nature of the liquid and the solid
Bthe material which exists above the free surface of the liquid
Cboth of die above
Dany one of the above E. none of die above
296
The center of gravity of the volume of the liquid displaced by an immersed body is called________________?
Ameta-center
Bcenter of pressure
Ccenter of buoyancy
Dcenter of gravity E. none of the above
297
Units of surface tension are_________________?
Aenergy/unit area
Bdistance
Cboth of the above
Dit has no units E. none of the above
298
A liquid compressed in cylinder has a volume of 0.04 m3 at 50 kg/cm2 and a volume of 0.039 m3 at 150 kg/cm2. The bulk modulus of elasticity of liquid is _________________?
A400 kg/cm2
B4000 kg/cm2
C40 x 105 kg/cm2
D40 x 106 kg/cm2 E. none of the above
299
Surface tension _____________________?
Aacts in the plane of the interface normal to any line in the surface
Bis also known as capillarity
Cis a function of the curvature of the interface
Ddecreases with fall in temperature E. has no units
300
The value of the coefficient of compressibility for water at ordinary pressure and temperature in kg/cm is equal to _________________?
A1000
B2100
C2700
D10,000 E. 21,000.