The hottest part of the flame lies in its _______________ zone?

Related Mcqs:

In case of pulverised coal fired steam boiler, the secondary air serves the main purpose of__________________?

A. Transportation of coal B. Drying of coal C. Combustion of coal by supplying it around the burner D. Preheating the primary air...

‘Fat coals’ are those coals which have very high____________________?

A. Caking capacity B. Volatile matter content C. Fusion point of its ash D. Inherent moisture content...

Tolerable concentration of toxic carbon monoxide in atmospheric air is about ______________ ppm?

A. 50 B. 1000 C. 5000 D. 10000...

Use of pulverised coal in boiler furnace provides___________________?

A. High calorific value B. Better combustion C. Smokeless burning D. Less erosion on furnace walls...

Which of the following can be made into briquettes without the use of a binder ?

A. Lignite B. Bituminous coal C. Anthracite coal D. None of these...