SSC JE Mechanical Engineering 2017 Set 5 Paper

Question : 146 of 200

Marks: +1, -0

In a steady flow of a fluid, the total acceleration of any fluid particle.

can be zero
is never zero
is always zero
is independent of co-ordinates

Solution:

Most steady flows have particles accelerating (often they move curvilinear), so this term is not zero. The steadiness refers to the fact that the velocity attached to the point x is constant in time, hence

{∂ v} / {∂t}

is zero.

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