Kinematics of Flow and Ideal Flow topics include: Fluid flow types and methods, continuity equation & its dimensions, flow lines types, velocity and acceleration, vortex flow, important cases of potential and super imposed flow. Kinematics of flow is the study of fluid motion without considering the factors that affect the motion. Fluid dynamics, on the other hand, focuses on the factors that affect fluid motion, such as pressure, momentum, and force.  Here are some types of flow: Laminar flow: The continuous movement of flowing fluid that follows or respects streamlines Turbulent flow:... Show more

Kinematics of Flow and Ideal Flow topics include: Fluid flow types and methods, continuity equation & its dimensions, flow lines types, velocity and acceleration, vortex flow, important cases of potential and super imposed flow.

Kinematics of flow is the study of fluid motion without considering the factors that affect the motion. Fluid dynamics, on the other hand, focuses on the factors that affect fluid motion, such as pressure, momentum, and force. 

Here are some types of flow:
Laminar flow: The continuous movement of flowing fluid that follows or respects streamlines
Turbulent flow: Characterized by erratic property modifications in the flow
Rotational flow: The type of flow in which the fluid particles rotate about their own axis while flowing along the streamlines
Irrotational flow: The type of flow in which the fluid particles do not rotate about their own axis while flowing along the streamlines
Unsteady flow: A flow in which the quantity of liquid flowing per second is not constant
Steady flow: A flow in which the conditions (velocity, pressure, and cross-section) may differ from point to point but do not change with time 

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Fluid Mechanics Practice Test: Kinematics of Flow and Ideal Flow

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25 Questions

1. In free vortex flow, the flow is linear in nature.

MaybeDon't KnowFalseTrue

2. In a two dimensional flow, the component of the velocity along the X-axis and the Y-axis are u = ax² + bxy + cy² and v = cxy. What should be the condition for the flow field to be continuous?

2a + c = 02b + c = 0b + c = 0a + c = 0

3. The characteristic of Ideal fluid are

IncompressibleFluid velocity is uniformShear stress has a constant, non zero valueInviscid

4. In which method of fluid flow analysis do we describe the motion parameters at a point?

Eulerian MethodControl volume analysisNone of the mentionedLangragian method

5. Determine the third velocity component such that continuity equation is satisfied if two components are u=x²+y²+z², v=xy² – yz² + xy

-3xz-2xyz+z2/3+f(y,z)-3xz-2xyz+z3/3+f(y,z)-3xz+2xyz+z3/3+f(y,z)-3xz-2xyz+z3/3+f(x,z)

6. If there is change in angle contained by two sides. the average of the angle is

RotationLinear DeformationLinear TranslationAngular Deformation

7. In a two dimensional flow, the component of the velocity along the X-axis and the Y-axis are u = ax² + bxy and v = cxy +dy². What should be the condition for the flow field to be continuous?

(a + c)x + (b + d)y = 0(2a + c)x + (b + 2d)y = 0(a + b)x + (c + d)y = 0(2a + b)x + (c + 2d)y = 0

8. In a two dimensional flow, the component of the velocity along the X-axis and the Y-axis are u = ax² + bxy and v = bxy + ay². The condition for the flow field to be continuous is

independent of both the constants (a; b) and the variables (x; y)independent of the constants (a; b) but dependent on the variables (x; y)dependent on both the constants (a; b) and the variables (x; y)independent of the variables (x; y) but dependent on the constants (a; b)

9. Which equation must be perfunctorily satisfied while dealing with fluid flow problems?

Newton’s second lawContinuity equationLaw of conservation of momentumNewton’s third law

10. Convective acceleration is defined as the rate of change of velocity due to change of velocity with respect to time.

Don't KnowTrueFalseMaybe

11. The continuity equation is based on the principle of

conservation of forceconservation of momentumconservation of energyconservation of mass

12. When fluid element moves from one position to another and it undergoes c hange in its dimensions, what type of motion is it?

Linear TranslationAngular DeformationRotationLinear Deformation

13. If the velocity is function of two space coordinates along with time then fluid flow is three dimensional in nature.

TrueMaybeDon't KnowFalse

14. Convective acceleration cannot be found if the fluid flow equation is not satisfying
the continuity equation but local acceleration can be found.

FalseMaybeTrueDon't Know

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

MaybeTrueFalseDon't Know

16. What is the nature of streamlines of free vortex flow?

None of the mentionedNon-concentricConcentricLinear

17. If the streamlines of the particles in a flow are parallel to each other, what type of flow can it be?

non-uniformsteadyunsteadyuniform

18. In a two dimensional flow, the component of the velocity along the X-axis and the Y-axis are u = axy and v = bx² + cy². What should be the condition for the flow field to be continuous?

a + 2b = 0a + c = 0a + 2c = 0a + b = 0

19. The velocity of a point in a flow is

tangent to the pathlinetangent to the streamlinealong the pathlinealong the streamline

20. Which of the following is correct?

Pathlines of two particles in an one-dimensional flow can never intersectPathlines of two particles in an one-dimensional flow can intersect only if the two particles move along different directionsPathlines of two particles in an one-dimensional flow can intersect only if the two particles move along the same directionPathlines of two particles in an one-dimensional flow can never intersect if the two particles move along the same direction

21. The flow of fluid along curvilinear or curved path is known as

Circular FlowVortex FlowSink FlowCurvilinear Flow

22. A beaker contains water up to a certain height as shown. If the water is allowed to get discharged through a small nozzle, what type of flow will it be in the pipe?

unsteady and uniformsteady and uniformsteady and non-uniformunsteady and non-uniform

23. Two pipes, each of diameter d, converge to form a pipe of diameter D. What should be the
relation between d and D such that the
ow velocity in the third pipe becomes half of that in each
of the two pipes?

D = d/5D = d/4D = d/3D = d/2

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

TrueDon't KnowFalseMaybe

25. The continuity equation is only applicable to incompressible fluid.

Don't KnowTrueFalseMaybe