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ESE CE: Fluid Mechanics Champion Quiz 1

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Question 1

Match List-I (Curve identification in figure) with List-II (Nature of fluid) and select the correct answer using the codes given below the lists:
Rate of shear deformation

Question 2

Assertion (A): The movement of two blocks of wood welted with hot glue requires greater and greater effort as the glue is drying up.
Reason (R):Viscosity of liquids varies inversely with temperature.

Question 3

What is the unit of dynamic viscosity of a fluid termed ‘poise’ equivalent to?

Question 4

Assertion (A) : In a fluid, the rate of deformation is far more important than the total deformation itself.
Reason (R) : A fluid continues to deform so long as the external forces are applied.

Question 5

If angle of contact of a drop of liquid is acute then

Question 6

Assertion (A) ; In non-Newtonian fluids, the shear stress at any point is not a linear function of normal distance from the surface .
Reason (R) : This behavaiour usually arises because the fluid molecules are very large, like polymers or proteins.
A. Both A and R are invidually true and R is the correct explanation of

Question 7

The pressure inside a soap bubble of 50 mm diameter is 25 N/m² abiove the atmospheric pressure. The surface tension in soap film would be

Question 8

100 m of water column is equal to

Question 9

Which one of the following expresses the height of rise or fall of a liquid in a capillary tube?

Where,
W= Specific weight of the liquid

= Angle of contact of the liquid surface

= Surface tension

Question 10

If a small concrete cube is submerged deep in still water in such a way that the pressure exerted on all faces of the cube is p, then the maximum shear stress developed inside the cube is

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ESE & GATE CE Fluid Mechanics

Jul 31ESE & GATE CE