Fluid Mechanics & Solids handling Mcqs

This set of Chemical Engineering Multiple Choice Questions & Answers (MCQs) focuses on “ Fluid Mechanics & Solid handling”. These Mcqs are chosen from a collection of most authoritative and best reference books on Chemical Fluid Mechanics & Solids handling. 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 Fluid Mechanics & Solids handling comprehensively.

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1.
A fluid is a substance that

Always sxpands until it fills any container

Is practically imcompressible

Deforms continuously when subjected to a shear stress no matter how small that shear stress may be

Cannot be subjected to shear stress

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2.
Newtons law of viscosity relates

Pressure velocity and viscosity

Shear stress and rate of angular deformation in a fluid

Temperature viscosity and velocity

Pressure temperature viscosity and rate of angular deformation in a fluid.

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3.
Falling drops of rain acquire spherical shape on account of

Temperature

Viscosity

Compressibility

Surface tension

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4.
A perfect gas

Is incompressible

Has zero viscosity

Cannot develop shear stresses

Has constant specific heats and satisfies PV = nRT.

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5.
The bulk modulus of elasticity for a liquid

Is independent of temperature

Increases with the pressure

Has the dimensions of volume

Is independent of pressure.

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8.
Viscosity has the dimensions

FL-2T-1

F-1L2T-1

FL-2T

F-1L2T where dimensions M L and T are used for force length and time.

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9.
Newtons law of viscosity states that for a given rate of angular deformation of fluid.

The shear stress is directly proportional to the viscosity

The shear stress is inversely proportional to the viscosity

The shear stress is independent of the viscosity

The shear stress is directly proportional to the square of viscosity

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10.
The resistance of a fluid to shear depends

Upon cohesion only

Upon its rate of transfer of molecular momentum only

Upon its cohesion and rate of transfer of molecular momentum

Upon other factors than its cohesion and rate of transfer of moleular momentum.

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12.
Capillary is due to

Adhesion

Cohesion

Both adhesion and cohesion

Neither adhesion nor cohesion

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13.
The specific weight (? ) of a substance

Is its weight per unit volume

Is its mass per unit volume

Does not change with location

Is not a convenient property when dealing with fluid statics.

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14.
In order to avoid a correction for the effect of capillary in manometers used for measuring pressure the diameter of the tube should he

Less than or equal to 3 mm

More than 3 mm but less than 5 mm

Equal to 5 mm

Greater than or equal to 0.5 inch.

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15.
Surface tension is due to

Cohesion only

Difference in magnitude between the forces due to adhesion and cohesion

Adhesion between liquid and solid molecules

Frictional forces

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