GATE Mechanical Engineering Practice Quiz

Question 1

A fluid is defined as a substance that

Accepted Answer

deforms continuously under any finite shear stress, however small

Question 2

For a fluid at rest, the pressure at a point is

Accepted Answer

the same in all directions at that point

Question 3

A cylindrical vessel containing liquid is accelerated horizontally with constant acceleration a. The free surface of the liquid makes an angle theta with the horizontal such that

Accepted Answer

tan theta = a/g

Question 4

For a Newtonian fluid, the shear stress tau is related to the velocity gradient du/dy by

Accepted Answer

tau = mu du/dy

GATE Mechanical Engineering — Mock tests

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