wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

Fluid mechanics

Total questions: 17

Worksheet time: 9mins

Name
Class
Date
1.

The path followed by a small fluid element is called----

a)

Streamline

b)

Turbulent

c)

Streamline and turbulent

d)

Viscosity

2.

The boundary of the tube of flow is always ----- to the velocity of particles.

a)

Perpendicular

b)

Parallel

c)

60°

d)

30°

3.

According to the ----- the impulse of the resultant force is equal to change in momentum of the body.

a)

Principle of conservation of mass

b)

Principle of conservation of energy

c)

Principle of conservation of momentum

d)

All the above

4.

------ is imaginary curve whose tangent at each point gives the velocity of the fluid element at the point.

a)

Turbulent

b)

Streamline

c)

Fluid flow

d)

Water flow

5.

AV = constant. This is known as -----

a)

Bernoulli's equation

b)

Equation of continuity

c)

Boyles law

d)

Pascals law

6.

The velocity of the fluid is ----- to the area of cross section

a)

Directly proportional

b)

Equal

c)

Less than

d)

Inversely proportional

7.

When an incompressible and non- viscous fluid, flows steadily through a tube of non uniform cross section then the product of area of cross section and the velocity of flow is same at every point in the tube. This is ------

a)

Principle of mass

b)

Principle of momentum

c)

Principle of energy

d)

Principle of continuity

8.

Velocity of flow decreases, if cross sectional area ----- and vice versa.

a)

Increases

b)

Decreases

c)

Equal

d)

Less than

9.

The energy possessed by a fluid by virtue of it's pressure is called ----

a)

Potential energy

b)

Pressure energy

c)

Kinetic energy

d)

Heat energy

10.

P+ 1/2 pv^2+ pgh= constant. This is------

a)

Bernoulli's equation

b)

Equation of continuity

c)

Mass energy equation

d)

Momentum equation

11.

When an incompressible and non- viscous fluid, flows in streamlined motion from one place to another ,then at every point of it's path the total energy per unit volume is constant is called------

a)

Principle of mass

b)

Principle of momentum

c)

Principle of energy

d)

Bernoulli's theorem

12.

Pressure energy per unit volume of the liquid equal to ------ -- due to the fluid.

a)

Hydrostatic pressure

b)

Atmospheric pressure

c)

Guage pressure

d)

Electric pressure

13.

The energy possessed by a fluid by virtue of it's height or position is above the reference line is known as -----

a)

Pressure energy

b)

Potential energy

c)

Kinetic energy

d)

Heat energy

14.

The energy possessed by a fluid by virtue of its velocity i .e due to motion is known as ------

a)

Pressure energy

b)

Potential energy

c)

Kinetic energy

d)

Electric energy

15.

Venturimeter is a instrument designed by -----

a)

G. B. Simon

b)

G. B. Venturi

c)

Pascal

d)

Boyles

16.

------ is known as equation of continuoty.

a)

A/ v = constant

b)

V/A = constant

c)

AV= constant

d)

Av

17.

------- is an instrument designed by G. B. Venturi.

a)

Barometer

b)

Hydrometer

c)

Odometer

d)

Venturimeter