Fluid Mechanics

361.One dimensional fluid flow implies the

1. Flow in straight lines only
2. Uniform flow
3. Steady uniform flow
4. Flow in which transverse components are zero

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362.One horsepower is equal to

1. 550 lB_ƒ.ft/second
2. 550 kgf.m/second
3. Both (A) and (B)
4. 550 lB_ƒ.ft./hr

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363.One poise (unit of absolute/dynamic viscosity) is equivalent to one

1. gm/cm². sec
2. gm/cm. sec
3. cm²/sec
4. m²/sec

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364.Open channel liquid flow is most conveniently measured by a

1. Hot wire anemometer
2. Notch
3. Rotameter
4. Segmental orifice

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365.Out of the following flow measuring devices, which one incurs the maximum installation cost as well as pressure loss?

1. Flow nozzle
2. Venturimeter
3. Rotameter
4. Orificemeter

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366.Paper pulp is an example of _________ fluid.

1. Dilatant
2. Bingham plastic
3. Newtonian
4. Pseudo-plastic

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367.Pascal law is not applicable for a/an _________ fluid.

1. Accelerating frictionless
2. Static
3. Uniformly moving
4. None of these

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368.Pascal's law is valid, only when the fluid is

1. Frictionless and at rest
2. At rest
3. At rest and when the frictionless fluid is in motion
4. None of these

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369.Path followed by water jet issuing from the bottom of a water tank will be a

1. Parabola (vertex being at the opening)
2. Hyperbola
3. Horizontal straight line
4. Zig-zag path (which is geometrically undefined)

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370.Permanent loss in a Venturimeter is about _________ percent of the pressure drop in the upstream cone.

1. 1
2. 10
3. 40
4. 70

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