Chemical Engineering · all questions

Fluid Mechanics
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Q321

Quicksand is an example of a __________ fluid.

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Q322

Drag is the force component exerted on an immersed object,

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Q323

In case of a pipe exit fitted with a nozzle, the

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Q324

Reynolds number is the ratio of

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Q325

The valve used for very remote and accurate control of fluid is a __________ valve.

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Q326

The terminal velocity of a particle moving through a fluid varies as d_pⁿ. What is the value of 'n' for Newton's law regime?

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Q327

Absolute viscosity of a fluid is a function of the __________ of the fluid.

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Q328

A free jet of water of cross-sectional area 0.01 m² and a velocity of 20 m/s strikes a plate and then flows in a plane parallel to the plate as shown in the figure below. The horizontal component of the force on the support is

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Q329

Which of the following relationship is valid for the equilibrium position of the float in a rotameter? (where, D_f = Drag force on the float B_f = Buoyant force on the float W_f = Weight of the float)

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Q330

With increasing flow rate, the hydraulic efficiency of a centrifugal pump

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Q331

Air vessel fitted to a reciprocating pump

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Q332

Hydraulic diameter for non-circular ducts is equal to __________ times the area of flow divided by the perimeter.

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Q333

Momentum correction factor used in fluid flow problems accounts for the

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Q334

What is the ratio of total kinetic energy of fluid passing per second to the value obtained on the basis of average velocity (for laminar flow through a circular pipe)?

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Q335

What is the ratio of the velocity at the axis of the pipe to the mean velocity of flow in case of pipe flow under viscous condition?

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Q336

Deformation drag, which is caused by widespread deformation of fluid around the immersed body

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Q337

For an ideal fluid flow, Reynolds number is

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Q338

For ideally incompressible fluid, the Mach number will be

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Q339

Ratio of pressure and inertia force gives __________ number.

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Q340

Froude number is not a factor

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