Question { 11404 }

what is session and cookies

Answer

session is a way by which we can add a object in memory between two
request .
and cookies are chunk of data which are stored on browser.

Question { 17912 }

what is meant by AJAX and its purpose?

Answer

in web development with the help of ajax we can retrive data from server
without refrashing or changing the behaviour of current page .

Question { 8442 }

what is the best method to measuring level in high pressure
and temperture thank?

Answer

if tank is filled with solid then Nuclear level detector
will be best.That will not come in contact with material so
less maintenance will required.

Question { 3246 }

what are the steps to follow force a particular input or
out put from ics triplex esd system?

Answer

for a particular tag find out "SCS no" "node no" "slot
no" and "channel no" from data base. For a tag which we
want to force open the corresponding SCS then open
Input/output lock window > lock the perticular tag > do it
True or False as per requirement. Hence tag fill be forced

Question { Sendan, 3061 }

what is the working principle of dis-placer type level transmitter

Answer

This displacer LT work onArchimedes' principle that indicates that the upward buoyant force that is exerted on a body immersed in a fluid, whether fully or partially submerged, is equal to the weight of the fluid that the body displaces. Archimedes' principle is a law of physics fundamental to fluid mechanics.
So change in weight of displacer will be directly proportional to level of lequid and that signal will be sent to LVDT which will be converted to 4 to 20 ma