2937. Function of secondary air in pulverised coal firing is to

By Admin / September 7, 2025

Transport the coal to the burner

Dry the coal

Ensure efficient burning of coal around the burner

Reduce primary air requirement

✅ The correct answer is option C.

2931. The calorific value of a gas of composition CO₂ = 20%, H₂ = 50%, CH₄ = 30%, is y. If the composition of gas is changed to H₂ = 50%, CH₄ = 30%, CO₂ = 10%, N₂ = 10%, then the calorifice value will be

2955. Absolute vapor pressure of petrofuels is found by Reid bomb which is heated in water bath to 100°F. In Reid apparatus, the ratio of the volume of air chamber to that of the liquid fuel chamber is

1. A fire tube boiler is limited to a maximum steam pressure of about __________ kg/cm².

Leave a Comment / Basic Chemical Engineering MCQs, Chemical Engineering, Engineering / By Admin

2. Transformer cores are normally made from

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