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Fluid Dynamics

Total questions: 15

Worksheet time: 7mins

Name
Class
Date
1.

The study of properties of fluids in motion is called

a)

Fluids Study

b)

Fluids statics

c)

Fluids dynamics

d)

None

2.

Turbulent flow is

a)

Unsteady and regular

b)

Steady and regular

c)

Unsteady and irregular

d)

Steady and regular

3.

A man standing near a fast moving train may fall.

a)

Away from the train

b)

Towards the train

c)

On the same place

d)

In the direction of train

4.

For laminar flow in a pipe Reynold's number should be

a)

less than 500

b)

more than 4000

c)

less than 2000

d)

1

5.

Friction factor depends on

a)

Reynolds number

b)

diameter of pipe

c)

roughness of pipe material

d)

all of above

6.

If every particle of fluid has irregular flow, then flow is said to be laminar flow.

a)

TRUE

b)

FALSE

7.

If every particle of fluid follows same path, then flow is said to be turbulent flow.

a)

TRUE

b)

FALSE

8.

Water is a

a)

Compressible liquid

b)

Incompressible liquid

9.

2000<Reynold Number< 4000

a)

Laminar Flow

b)

Turbulent Flow

c)

Transition Flow

d)

Super Hulk Flow

10.

Reynold number less than 2000

a)

Laminar Flow

b)

Transition Flow

c)

Turbulent Flow

d)

Spider flow

11.

Another name for laminar flow

a)

Eddie flow

b)

Zig Zag flow

c)

Streamline flow

d)

None of the above

12.

Turbulent flow is characterized by _______

a)

low flow rates

b)

irregular and chaotic flow

c)

regular streamlines

d)

constant speed

13.

Which of the following options is not true about

the fluid shown in the figure below?

a)

It is an ideal fluid

b)

It has a steady flow

c)

It has laminar flow

d)

It has turbulent flow

14.

Write the formula used to calculate volume flow rate

a)

Q=AV

b)

Q=AV2

c)

Q=PA

d)

Q=Mg

15.

What is flow rate?

a)

The speed of a fish swimming across a lake.

b)

The speed of a rocket going to the moon.

c)

The speed which a fluid flows from one point to another.