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Civil Set-1
Water Resources Engineering
76

Water Resources Engineering MCQ with Answers

76) The angle of contact in case of a liquid depends upon

the nature of the liquid and the solid

the material which exists above the free surface of the liquid

both of die above

any one of the above

Answer is:

both of die above

Water Resources Engineering MCQ with Answers

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Related Water Resources Engineering MCQ with Answers

77) Free surface of a liquid behaves like a sheet and tends to contract to smallest possible area due to the

force of adhesion

force of cohesion

force of friction

force of diffusion

Answer is:

force of cohesion

78) Rain drops are spherical because of

viscosity

air resistance

surface tension forces

atmospheric pressure

Answer is:

surface tension forces

79) Surface energy per unit area of a surface is numerically equal to

atmospheric pressure

surface tension

force of adhesion

force of cohesion

Answer is:

surface tension

80) The capillary rise at 20°C in a clean glass tube of 1 mm bore containing water is ap-proximately

1 mm

5 mm

10 mm

30 mm.

Answer is:

30 mm.

Water Resources Engineering MCQ with Answers

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