Which of the following reactions occuring during coal gasification is called the Neumann reversal reaction ?

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The maximum adiabatic flame temperature in air is _____________ the maximum flame temperature in pure oxygen?

A. Lower than B. Higher than C. Same as D. Not related to...

Main use of hard coke produced by high temperature carbonisation is in the ____________________ ?

A. Iron blast furnace B. Cupola in foundries C. Sinter making D. Domestic ovens...

ombustion of pulverised coal compared to the lumpy coal __________________?

CA. Provides better control of furnace temperature B. Facilitates combustion with lower excess air C. Provides higher thermal efficiency & flame temperature D. All A., B. & C....

Atomising steam to fuel oil ratio in a burner should be around__________________?

A. 0.5 B. 1.5 C. 2.5 D. 3.5...

Proximate analysis of coal determines its ______________ content?

A. Moisture, ash, sulphur & volatile matter B. Moisture, volatile matter, ash & fixed carbon C. Moisture, sulphur, nitrogen & fixed carbon D. None of these...