🏗️Civil Engineering MCQs
Civil Engineering MCQs
479 MCQs401
If the atmospheric pressure on the surface of an oil tank (sp. gr. 0.8) is 0.2 kg/cm”, the pressure at a depth of 50 m below the oil surface will be _____________________?
A2 meters of water column
B3 meters of water column
C5 meters of water column
D6 meters of water Column E. 7 meters of water column
402
A square surface 3 m x 3 m lies in a vertical line in water pipe its upper edge at vater surface. The hydrostatic force on square surface is __________________?
A9,000 kg
B13,500 kg
C18,000 kg
D27,000 kg E. 30,000 kg
403
An odd shaped body weighing 7.5 kg and occupying 0.01 m3 volume will be completely submerged in a fluid having specific gravity of_________________?
A1
B1.2
C0.8
D0.75 E. 1.25
404
The atmospheric pressure with rise in altitude decreases____________________?
Alinearly
Bfirst slowly and then steeply
Cfirst steeply and then gradually
Dunpredictable E. none of the above
405
Free surface of a liquid behaves like a sheet and tends to contract to smallest possible area due to the_______________?
Aforce of adhesion
Bforce of cohesion
Cforce of friction
Dforce of diffusion E. none of die above
406
Surface energy per unit area of a surface is numerically equal to___________________?
Aatmospheric pressure
Bsurface tension
Cforce of adhesion
Dforce of cohesion E. viscosity
407
The capillary rise at 20°C in a clean glass tube of 1 mm bore containing water is ap-proximately____________________?
A1 mm
B5 mm
C10 mm
D20 mm E. 30 mm
408
The difference of pressure between the inside and outside of a liquid drop is________________?
Ap = Txr
Bp = T/r
Cp = T/2r
Dp = 2T/r E. none of the above
409
To avoid vaporisation in the pipe line, the pipe line over the ridge is laid such that it is not more than_______________?
A2.4 m above the hydraulic gradient
B6.4 m above the hydraulic gradient
C10.0 m above the hydraulic gradient
D5.0 above the hydraulic gradient E. none of the above
410
The vapour pressure over the concave surface is________________?
Aless man the vapour pressure over the plane surface
Bequal to the vapour pressure over the plane surface
Cgreater than the vapour pressure over the plane surface
Dzero E. none of the above