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GATE ME: Fluid Mechanics & Fluid Machinery Champion Quiz 1

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Question 1

Which fluid property shows that the mercury does not wet the glass?

Question 2

A static fluid can have

Question 3

For a two-dimensional flow, the velocity field is

where i and j are the basis vectors in the x-y Cartesian coordinate system. Identify the CORRECT statements from below.
(1) The flow is incompressible.
(2) The flow is unsteady.
(3) y-component of acceleration,

(4) x-component of acceleration,

Question 4

The instantaneous stream-wise velocity of a turbulent flow is given as follows:

The time-average of the fluctuating velocity u′(x, y, z, t) is

Question 5

With increase in pressure, the bulk modulus of elasticity

Question 6

The velocity distribution in a laminar flow adjacent to a solid wall is given by u = 3.0 sin(5πy). The viscosity of the fluid is 5 poise. What is the shear stress at a section (i) y = 0.05 m; (ii) y = 0.12 m?

Question 7

If the stream function is given by $Description: Description:ISROME2009_files\image005.png$ , then the velocity at a point (2,3) will be

Question 8

The 2-D flow with velocity

Question 9

In conservation of mass in fluid flow, if dm / dt = 0, then the fluid flow results:

Question 10

In figure, if the pressure of gas in bulb A is 50 cm Hg vacuum and p_atm = 76 cm Hg, the height of column H is equal to

$Description: D:\GradeStack Courses\GATE Tests (Sent by Ravi)\GATE-EE-ME-19-Mar\GATE-ME-2000_files\image068.jpg$

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ESE & GATE ME Fluid Mechanics & Machinery

Feb 18ESE & GATE ME