Correct answer
D. Impact and attrition
Explanation
The correct answer is Impact and attrition.
Automobile exhaust is passed through two compartments catalytic converter employing platinum as catalyst for________?
Bacterial aerobic oxidation of polluted water in biological oxidation ponds is done to purify it. Presence of bacteria helps in________?
The half life period of a first order reaction is given by (where, K = rate constant)?
________ nozzles are used in continuous casting of steel?
. Refractoriness under load (RUL) of fireclay bricks (under a load of 2 kg/cm2) is ________ °C?
Thermometer bulb & capillary in case of mercury filled pressure spring expansion thermometer is normally made of ________ as mercury does not amalgamate with it?