Hydraulics and Fluid Mechanics Mcqs

This set of Civil Engineering Multiple Choice Questions & Answers (MCQs) focuses on “ Hydraulics and Fluid Mechanics ”. These Mcqs are chosen from a collection of most authoritative and best reference books on Civil Engineering. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, University and College entrance exams, Jobs and interviews. One should practice our MCQS to assimilate Railway Engineering Hydraulics and Fluid Mechanics comprehensively.

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32.
Mercury does not wet glass. This is due to property of liquid known as_________________?

Adhesion

Cohesion

Surface tension

Viscosity

Answer Discus (0)

33.
Property of a fluid by which molecules of different kinds of fluids are attracted to each other is called________________?

Adhesion

Cohesion

Viscosity

Compressibility

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34.
Specific weight of water in S.I. units is equal to_________________?

1000 N/m3

10000 N/m3

9.81 xlO3 N/m3

9.81 xlO6N/m3

Answer Discus (0)

35.
Which of the following is dimensionless ________________?

Specific weight

Specific volume

Specific speed

Specific gravity

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36.
The pressure at a point in a fluid will not be same in all the directions when the fluid is________________?

Moving

Viscous

Viscous and static

Inviscous and moving

Viscous and moving

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37.
The tendency of a liquid surface to contract is due to the following property_________________?

Cohesion

Adhesion

Viscosity

Surface tension

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38.
A fluid in equilibrium can’t sustain_________________?

Tensile stress

Compressive stress

Shear stress

Bending stress

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39.
The bulk modulus of elasticity with increase in pressure___________________?

Increases

Decreases

Remains constant

Increases first upto certain limit and then decreases

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40.
A balloon lifting in air follows the following principle_________________?

Law of gravitation

Archimedes principle

Principle of buoyancy

All of the above

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41.
In a static fluid__________________?

Resistance to shear stress is small

Fluid pressure is zero

Linear deformation is small

Only normal stresses can exist

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42.
A perfect gas_________________?

Has constant viscosity

Has zero viscosity

Is incompressible

Is of theoretical interest

none of the above

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43.
The increase of temperature results in_________________?

Increase in viscosity of gas

Increase in viscosity of liquid

Decrease in viscosity of gas

Decrease in viscosity of liquid

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45.
The stress-strain relation of the newtoneon fluid is________________?

Linear

Parabolic

Hyperbolic

Inverse type

Answer Discus (0)

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