My Profile
Active Members
TodayLast 7 Days
more...
Awards & Gifts
Online Exams
Fresher Jobs
Our fresher job section is exclusively for fresh graduates! Find jobs for freshers in major Indian
cities including Bangalore, Chennai, Hyderabad, Pune or Kochi
Resources
Find educational articles, blogs, discussion threads and other resources.
Colleges
Find details about any college in India or search for courses.
|
Some important terms used in Hydraulics Engineering.
Posted Date: 18 Jun 2008 Resource Type: Articles/Knowledge Sharing Category: Education
|
Posted By: prasanna Member Level: Gold
Rating:  Points: 4
|
|
|
Hydraulic Machines may be defined as that Branch of Engineering,which deals with the Machine run by Water under some head,or rising the Water to some
higher level.
The Properties of Water at rest and at motion:-
01)Water keeps its surface level,at rest
02)The Water exerts a uniform Pressure in all direction.
03)The Velocity of Water,in a channel,is more at the centre than at the sides.
04)The Velocity of Water is directly proportional to the slope of the channel bed.
05)The Pressure of the Water is equal to its Weight and thus,the Pressure increases with the depth.
The Important Properties of Liquid.
01)Density of Water:-
The mass per unit Volume at a standard Temperature and Pressure is known as Density of Liquid.It is denoted by "rho".
02)Specific Weight of Water:-
The Weight per unit Volume,at standard Temperature and Pressure is known as Specific Weight of Liquid.Denoted by "w"
03)Specific Gravity of Water:-
It is the ratio of its Specific Weight to that of a standard substance at a standard Temperature.
04)Compressibility of Water:-
The variation in its Volume,with the variation in its Pressure is known as Compressibilty of Water.The Water is considerded to be an incompressible liquid.
05)Surface Tension of Water:-
It is the property of Water,which enables it to resist Tensile Stress.It is due to Cohesion between the Molecules at the surface of a liquid.Drops of rain water sphere because liquid surface has a tendency to reduce its surface as small as possible.
06)Capillarity of Water:-
The Phenomenon of rising Water in the tube of smaller diameter is called the Capillary rise.
07)Viscosity of Water:-
The property of Liquid which controls its rate of flow is known as "Viscosity of Water".
Difference between Mass and Weight.
A)MASS:-
It is the amount of matter contained in a given body,and does not vary with the change in its position on the Earth's surface.
B)WEIGHT:-
It is the amount of pull,which the Earth exerts upon a given body,therefore the Weight of the body will vary with its position on the earth's surface.
For more details, visit http://mechanicalguru.blogspot.com/
|
Responses
|
No responses found. Be the first to respond and make money from revenue sharing program.
|
|
Watch TV Channels
|