Answer Posted / rahul singh
R12-chlorofluorocarbons.
It depletes ozone layer, increases the effect of global warming and becomes harmful when mixes with lube oil ND6 . R12 is not eco friendly So that's why it is restricted .
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
purpose of primary and secondary air? causes of smoke?
If you have a valve with an applied pressure, how do you determine the stress to the closed and open valve?
ongc recruitment sample paper for asst.technician technical
I'm a first year student of B.E Mechanical Engineering... How should i prepare myself for getting selected in campus interviews from now itself...? What books should i refer....?
about induction motor
why we open open condenser vacume early when the unit get balck?
What do you understand by eutectic ?
which quality steel is better for molasses storage tank? & why? IS 2062 GR A OR IS 2062 GR B
Study the attached ACS 790 AHU and boiler GUI and refer to the video on the software usage, catalog and the step by step document (page 9) to perform the following task: List in a table form the controllers and all their connected I/O for the boiler and the AHU.
What is vane diagram in centrifugal pump?
effect of temperature on stainless steel,aluminized steel,chromium at (500C-750C)-required for project work on silencer 1.thermal conductivity 2.heat conduction 3.mechanical strength 4.temperature to weight ratio urgent
what are the parameters are selected while manufacturing a single cylinder block?what are the different kind of test is conducted on it so that it can withstand with all those condition which required to run the engine efficiently.which force is act when piston slide inside the cylinder.
Disposal of radioactive waste materials and spent fuel is a major and important technology. How the waste radioactive material is disposed off ?
What is the use of rasp file?
Explain the differences between pneumatics and hydraulics?