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You need to login to ask any Questions from chapter kinematics-of-flow-and-ideal-flow of Fluid-Mechanics-Mcqs

Chapter:

kinematics-of-flow-and-ideal-flow

1. The sink flow is flow in which fluid moves radially inwards towards a point where it disappears at a variable rate.

True False

False

The sink flow is flow in which fluid moves radially inwards towards a point where it disappears at a constant rate.

Hint Answer

2. Potential lines for source-sink pair will be eccentric non intersecting circles with ir centers on axis.

True False

False

The potential line for source sink pair will be eccentric non intersecting circles with ir centers on axis.

Hint Answer

3. In laminar flow fluid particles flow along a streamline.

True False

True

As per definition of laminar flow, fluid particles flow in a streamlined manner.

Hint Answer

4. What type of flow can be taken for granted in a pipe of a uniform cross-section?

steady unsteady uniform non-uniform

uniform

According to continuity equation, ?AV =constant, where ?= density, A= cross-sectional area of flow, V = velocity of flow. For a pipe of a uniform cross-section, no matter what rate of flow is, velocity of flow inside pipe will always remain constant. Hence, it?ll always be a uniform flow. It?ll be a steady flow if and only if water level is maintained at a constant level by supplying water at same rate as it gets discharged, else water level will keep decreasing with time leading to an unsteady flow.

Hint Answer

5. In equation for steam function due to source steam function is inversely proportional to magnitude at discharge

True False

True

Steam function is directly proportional to magnitude of discharge.

Hint Answer

6. The streamlines of particles in a flow are recorded. If streamline distribution remain same even after sometime, what type of flow can it be?

steady unsteady uniform non-uniform

steady

A streamline is defined as an imaginary line within flow such that tangent at any point on it indicates velocity at that point. In a steady flow, velocity of particles is constant with time. Hence, streamlines remain same even after sometime.

Hint Answer

7. Total acceleration has same value as convective acceleration in case of unsteady flow.

True False

False

Total acceleration has same value as convective acceleration in case of steady flow as local acceleration value becomes zero.

Hint Answer

8. The characteristic of Ideal fluid are

Incompressible Inviscid Fluid velocity is uniform Shear stress has a constant, non zero value

Fluid velocity is uniform

As ideal fluid is inviscid, shear stress is zero.

Hint Answer

9. Two pipes of diameters d1 and d2 converge to form a pipe of diameter d. If liquid flows with a velocity of v1 and v2 in two pipes, what will be flow velocity in third pipe?

$Two pipes of diameters d1 and d2 converge to form a pipe of diameter d. If liquid flows with a velocity of v1 and v2 in two pipes, what will be flow velocity in third pipe?\r\n \r\n$

Option A Option B Option C Option D

Option D

According to Continuity Equation,

$Two pipes of diameters d1 and d2 converge to form a pipe of diameter d. If liquid flows with a velocity of v1 and v2 in two pipes, what will be flow velocity in third pipe?\r\n \r\n$

where a represents flow area, v represents flow velocity, i is for inlet conditions and o is for outlet conditions. Thus,

Hint Answer

10. For a flow to be physically possible it must primarily satisfy which equation?

Equation of conservation of energy Equation of conservation of mass or continuity equation Equation of conservation of momentum None of the mentioned

Equation of conservation of energy

Fluid flow must satisfy equation of conservation of mass or continuity equation, for itto be physically possible.

Hint Answer

Nexttt

All Chapters

View all Chapter and number of question available From each chapter from Fluid-Mechanics-Mcqs

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Properties of Fluids

Pressure and Its Measurement

Pressure and Its Measurement

Hydrostatic Forces on Surfaces

Hydrostatic Forces on Surfaces

Buoyancy and Floatation

Buoyancy and Floatation

Kinematics of Flow and Ideal Flow

Kinematics of Flow and Ideal Flow

Fluid Dynamics

Orifices, Mouthpieces, Notches and Weirs

Orifices, Mouthpieces, Notches and Weirs

Viscous Flow & Turbulent Flow

Viscous Flow & Turbulent Flow

Flow Through Pipes

Flow Through Pipes

Indicator Diagrams

Indicator Diagrams

Dimensional and Model Analysis

Dimensional and Model Analysis

Boundary Layer Flow & Forces on Sub-merged Bodies

Boundary Layer Flow & Forces on Sub-merged Bodies

Compressible Flow

Compressible Flow

Flow in Open Channels

Flow in Open Channels

Non Uniform Flow in Channels

Non Uniform Flow in Channels

Impact of Jets and Jet Propulsion

Impact of Jets and Jet Propulsion

Topics

This Chapter kinematics-of-flow-and-ideal-flow consists of the following topics

Kinematics of Flow and Ideal Flow

The sink flow is flow in which fluid moves radially inwards towards a point where it disappears at a variable rate.

Potential lines for source-sink pair will be eccentric non intersecting circles with ir centers on axis.

In laminar flow fluid particles flow along a streamline.

What type of flow can be taken for granted in a pipe of a uniform cross-section?

In equation for steam function due to source steam function is inversely proportional to magnitude at discharge

The streamlines of particles in a flow are recorded. If streamline distribution remain same even after sometime, what type of flow can it be?

Total acceleration has same value as convective acceleration in case of unsteady flow.

The characteristic of Ideal fluid are

Two pipes of diameters d1 and d2 converge to form a pipe of diameter d. If liquid flows with a velocity of v1 and v2 in two pipes, what will be flow velocity in third pipe?

$Two pipes of diameters d1 and d2 converge to form a pipe of diameter d. If liquid flows with a velocity of v1 and v2 in two pipes, what will be flow velocity in third pipe?\r\n \r\n$

;

For a flow to be physically possible it must primarily satisfy which equation?

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