what is the unit of hardness?

Answer Posted / kuldeep

hardness no. of Water is in UNIT of PPM
Material Hadrness is measured into Brinnel hardness Number

Is This Answer Correct ?    6 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Please mail me the Satyam Computers (Mechanical Division, Satyam Technologies, Hyderabad & Bangalore) question papers on Design & strength of materials. Will be very thanksful.....srinivas_1704@yahoo.co.in

1541


what do you mean by resistivity survey of tubewell

1763


where can find the information on 2R manipulator?and wat is the history of this 2r manipulator?

1407


What is meant by direct heat exchanger [or] open heat exchanger?

611


what is bms system and how to work it

1206






Please anyone send me previous papers of ONGC (Mechanical Engineering) at my email id jtndrkmr.vermaapril@gmail.com. Please help me.

1685


whats the coloring code of a air to open or a air to close valve?

1347


difference between 1st angle and 3rd angle projection

1622


Why did you choose this career?

1569


what are various part found in vapour absorption machine and its working

1877


I am doing 3rd year mechanical engineering. I want to place in good mechanical engineering core company. So please guide me how to prepare for interviews, and what can i do for placed in good company?

1419


There is a block placed in between air and water. water is at 100 deg cel and air at 50. 1) Draw temperature profile. 2) Why is it curve in air and water?

903


mechanical question for the insrumentation

651


How many btu per hour equals 1 ton of air conditioning?

594


can a deareator be placed at any height with care that suction (NPSH) for feed pump is satisfied

1540