Fluid Mechanism

Question 1

Fluids

Answer 1

Matter that can flow, it includes liquid and gases

Question 2

Density

Answer 2

Mass/Volume

Question 3

Relative Density

Answer 3

Density of fluid/Density of water at 4 degree celsius

Question 4

Specific Gravity

Answer 4

Specific weight of fluid/Specific weight of water at 4 degree celsius

Question 5

Pressure

Answer 5

Force/Area

Question 6

Isotropic Pressure

Answer 6

Pressure exerted by a liquid is same in all directions

Question 7

Absolute Pressure(P)

Answer 7

Po(Air Pressure) + Hρg(Gauge Pressure)

Question 8

Pascal’s Law

Answer 8

Pressure applied at any point of this confined liquid is equally transmitted to all the points

Question 9

Hydrolic Life equation

Answer 9

F1/A1=F2/A2

Question 10

In an accelering fluid, what is the relation between acceleration and g?

Answer 10

a = gtanθ

Question 11

Buoyant force on the body is

Answer 11

Weight of the liquid displaced

Question 12

Equation of Continuity

Answer 12

A1V1=A2V2

Question 13

Velocity, time and range of efflux

Answer 13

v = root(2gh)
t = root(2(H-h)/g
Range = 2root(h(H-h))