Correct answer
D. All A., B. and C.
Explanation
The correct answer is All A., B. and C..
Replenishment of dissolved oxygen in water stream polluted with industrial waste occurs by________?
In a shell and tube heat exchanger for a given heat transfer surface area, smaller diameter tubes are favoured as compared to larger diameter ones; because the smaller diameter tubes ________?
________ conveyor is the most suitable for short distance transportation of non-abrasive loose materials like garbage, grain, food wastes etc?
Heat evolved/absorbed during conversion of a substance from one allotropic form to another is termed as the heat of________?
Magnesite bricks are used in those parts of furnaces, which are ________?
The purpose of adding Na2CO3 to water of low alkalinity is to________?