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Fluid Mechanics Lab internal test 1

Total questions: 10

Worksheet time: 7mins

Name
Class
Date
1.

Which of the following devices does not use Bernoulli's equation as its working principle?

a)

Venturimeter

b)

Orifice-meter

c)

Pitot tube

d)

None of the above

2.

The cylindrical portion of short length, which connects converging and diverging section of venturimeter, is called as

a)

diffuser

b)

connector

c)

throat

d)

manometer tube

3.

The relation between head of water and head of mercury in u tube manometer is

a)

h=12.6 hm

b)

h= 13.6 hm

c)

h=hm(SmSw1)h=h_m\left(\frac{S_m}{S_w}-1\right)

d)

Both A and C

4.

The continuity equation is the result of application of the following law to the flow field

a)

First law of thermodynamics

b)

Conservation of energy

c)

Newtons second law of motion

d)

Conservation of mass

5.

Which is the cheapest device for measuring flow / discharge rate.

a)

Venturimeter

b)

Pitot tube

c)

Orificemeter

6.

The principle of Orificemeter is same as that of Venturimeter.

a)

True

b)

False

7.

Coefficient of discharge for venturimeter is

a)

0.96-0.98

b)

1.2-1.4

c)

0.5-0.6

d)

0.62

8.

Coefficient of discharge is

a)

actual discharge/ theoretical velocity

b)

actual discharge/ area

c)

actual discharge/ theoretical discharge

d)

Theoretical discharge /actual discharge

9.

Write the procedure of finding coefficient of discharge through an orifce meter

4 lines
10.

Write 5 properties of a fluid

4 lines