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Worksheets

Paani se panga mat lo

Total questions: 18

Worksheet time: 9mins

Name
Class
Date
1.

Weight density or specific weight or unit weight is defined as

a)

ρ=W/Vρ=W/V

b)

ρ=M/Vρ=M/V

c)

γ=W/Vγ=W/V

d)

γ=M/Vγ=M/V

2.

Which of the formula defines newton’s law of viscosity?

a)

τ=μdy/duτ=μdy/du

b)

τ=μdu/dyτ=μdu/dy

c)

μ=τdu/dyμ=τdu/dy

d)

μ=τdy/duμ=τdy/du

3.

Which of the following relation is correct?

a)

Kinematic viscosity=Density/(Dynamic viscosity)

b)

Dynamic viscosity=(Kinematic viscosity)/Density

c)

Kinematic viscosity=(Dynamic viscosity)/Density

d)

Dynamic viscosity=Density/(Kinematic viscosity)

4.

Unit of kinematic viscosity is

a)

Poise

b)

Stoke

c)

Ns/m2

d)

Pata Nahi

5.

The pressure inside the soap bubble is

a)

P=4σ/dP=4σ/d

b)

P=8σ/dP=8σ/d

c)

P=2σ/dP=2σ/d

d)

Padh ke batata hu

6.

Capillary rise is defined by the formula

a)

h=4σcosθ/ρgdh=4σ\cosθ/ρgd

b)

h=2σcosθ/ρgdh=2σ\cosθ/ρgd

c)

h=8σcosθ/ρgdh=8σ\cosθ/ρgd

d)

Sar dard hogya civil me

7.

Which of the following defines the absolute pressure:

a. Atmospheric Pressure + Gauge Pressure

b. Vacuum pressure – Atmospheric Pressure

c. Gauge pressure + Vacuum Pressure

d. Dimag ka Pressure

a)

a and b

b)

b and c

c)

c and a

d)

only d

8.

What type of pressure is in the vessel A in cases a and b?

a)

Vacuum in (a) and gauge in (b)

b)

Vacuum in (b) and gauge in (a)

c)

Vacuum in both (a) and (b)

d)

Gauge in both (a) and (b)

9.

Which device is used here to measure the pressure?

a)

Piezometer

b)

U Tube Manometer

c)

U Tube Differential Manometer

d)

Samajh Nahi Aya

10.

Which pressure is this device measuring?

a)

Air

b)

Water

c)

Atmosphere

d)

All of the above

11.

If  x\overline{x}  is the centre of mass of the body, A is the area then the total pressure on an inclined surface is given by 

a)

 ρgAx\rho gA\overline{x}  

b)

 ρgAx\frac{\rho gA}{\overline{x}}  

c)

 ρgxA\frac{\rho g\overline{x}}{A}  

d)

Pehle ye batao ye dubaya kisne

12.

If  x\overline{x}  is the centre of mass of the body,  IGI_G  is the moment of inertia about center of gravity and A is the area then the centre of pressure on an inclined surface is given by 

a)

 x + AxIg\overline{x}\ +\ \frac{A\overline{x}}{I_g}  

b)

 x + AIgx\overline{x}\ +\ \frac{AI_g}{\overline{x}}  

c)

 x + IgAx\overline{x}\ +\ \frac{I_g}{A\overline{x}}  

d)

Fir wahi baat! Pehle ye batao ye dubaya kisne

13.

Which condition of equilibrium is there is the body shown?

a)

Stable

b)

Unstable

c)

Neutral

d)

Yeeee toh nai ata

14.

The difference is Lagrangian and Eulerian approach in fluid kinematics is

a)

Eulerian is particle oriented and Lagrangian is flow oriented

b)

Eulerian is flow oriented and Lagrangian is particle oriented

c)

Both are same

d)

In dono chachao se hamara koi nata nai

15.

A line which shows the instantaneous location of the particle which passes through a point is called

a)

Stream Line

b)

Streak Line

c)

Path Line

d)

None of the above

16.

On increasing the velocity of flow

a)

Distance between stream lines decreases

b)

Distance between stream lines increases

c)

Distance between streak lines increases

d)

Distance between streak lines decreases

17.

Choose the correct statement

a. Convective acceleration is change in velocity per unit time

b. Convective acceleration is change in velocity per unit space

c. Temporal acceleration is change in velocity per unit time

d. Temporal acceleration is change in velocity per unit space

a)

a and c

b)

a and d

c)

b and c

d)

b and d

18.

How was the quiz? You can choose any two options.

a)

Learning

b)

Fun

c)

Time consuming

d)

Not worth of