365. Atomising steam to fuel oil ratio in a burner should be around
366. Volumetric ratio of N2 to O2 in dry atmospheric air is
367. Combustion of pulverised coal compared to the lumpy coal
368. Use of pulverised coal in boiler furnace provides
369. Which of the following is the maximum coal producing state in India?
370. The temperature at which plastic layer formation takes place during carbonisation of coal varies from __________ °C.
371. The difference between total carbon and fixed carbon of coal will be minimum in case of
