Various efficiencies of a centrifugal pump are related as (where, εm = mechanical efficiency εv = volumetric efficiency. εma = manometric efficiency εo = overall efficiency)?

Photographic plates are coated with________?

Spheroidising of a material is a/an ________ process?

In the formation of cermets, the ratio of ceramic material to metallic material is usually 80:20. Which of the following is a cermet?

Sulphuric acid pickling tanks are lined with________?

Leaching of coarse solid lumps is also termed as ________?