Too much of excess air in combustion results in high________?

An electric furnace producing heat by means of an electric arc struck between each of three electrodes and the charge is called ________ furnace?

Which of the following mineral dressing operations is termed as ‘comminution’?

High temperature in gasification of coal favours________?

For every 10% increase in the excess air; the fuel consumption increases by ________ percent?

Rayon is superior to cotton in making gauge for wound treatment, because rayon________?