Fluid Mechanics for Chemical — Test 14

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Question 1

The flow of gas along a pipe in the direction of decreasing pressure causes decrease in its__________________?

Question 2

In case of supersonic flow of a fluid through pipeline, the ‘Mach number’ is__________________?

Question 3

Gradually varied flow in open channel is a/an ____________ flow?

Question 4

Stoke’s law is valid, when NRe, p is less than_________________?

Question 5

Cavitation in a centrifugal pump can be avoided by keeping the__________________?

Question 6

Momentum transfer in laminar flow of fluids results due to the_________________?

Question 7

What is the ratio of fluid carrying capacity of two pipes having diameters d1 and d2 respectively ?

Question 8

Mach number is important in a fluid flow problem, when the inertia and _____________ forces predominate?

Question 9

Boundary layer thickness in turbulent flow over a flat plate increases as(where, d = distance from the leading edge.) ?

Question 10

The net positive suction head (NPSH) of a centrifugal pump is defined as the sum of the velocity head and the pressure head at the_________________?