Fluid Mechanics Lab internal test 1

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

• Venturimeter

• Orifice-meter

• Pitot tube

• None of the above

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

• diffuser

• connector

• throat

• manometer tube

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

• h=12.6 hm

• h= 13.6 hm

• $h=h_m\left(\frac{S_m}{S_w}-1\right)$

• Both A and C

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

• First law of thermodynamics

• Conservation of energy

• Newtons second law of motion

• Conservation of mass

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

• Venturimeter

• Pitot tube

• Orificemeter

The principle of Orificemeter is same as that of Venturimeter.

• True

• False

Coefficient of discharge for venturimeter is

• 0.96-0.98

• 1.2-1.4

• 0.5-0.6

• 0.62

Coefficient of discharge is

• actual discharge/ theoretical velocity

• actual discharge/ area

• actual discharge/ theoretical discharge

• Theoretical discharge /actual discharge

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

Write 5 properties of a fluid