The pump is used in the water treatment industry for pumping clean treated water.

want to know downtime cost estimate, mean time to repair, logistics support, and any other information relating to heat exchanger maintenance

Checked online, but the first entries were for gall bladder, liver and kidney tests related to a HIDA test.
Supposedly it helps find microcracks in the heat exchanger.

Does the first law of thermodynamics univocally define the relative proportions of heat and work that are involved
in a given variation of internal energy of a system? Explain.

Ive done 2 years of a 4 year nanotechnology course. If I do a masters in chemical engineering which is 1.5 years long, will I be able to work as a chemical engineer afterwards?

Or should i just change my course to chemical engineering now and almost start from scratch?