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Fluid Mechanics

Fluid Mechanics
N²Re/NFr is called the __________ number.

Euler
Galileo
Brinkman
Archimedes

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Fluid Mechanics
Water is flowing at 1 m/sec through a pipe (of 10 cm I.D) with a right angle bend. The force in Newtons exerted on the bend by water is

5√2π
10√2π
5π/2
5π/√2

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Fluid Mechanics
Toothpaste is a

Newtonion liquid
Bingham plastic
Pseudoplastic
Dilatent

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Fluid Mechanics
The pressure drop per unit length of pipe incurred by a fluid 'X' flowing through pipe is Δp. If another fluid 'Y' having both the specific gravity & density just double of that of fluid 'X', flows through the same pipe at the same flow rate/average velocity, then the pressure drop in this case will be

2Δp
Δp/2
Δp
Δp²

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Fluid Mechanics
Cd is always __________ Cc.

Equal to
Less than
Either more or less than
Greater than

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Fluid Mechanics
Power number is the ratio of

Gravitational stress to drag stress
Inertial stress to gravitational stress
Drag stress to inertial stress
Inertial stress to drag stress

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MORE MCQ ON Fluid Mechanics

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