Fuels and Combustion MCQs
Practice free Fuels and Combustion multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 590 questions — no login required.
Question 325hard
Quantity of coke oven gas produced by high temperature carbonisation of one ton of dry coal may be around __________ Nm3.
Question 326medium
A sooty flame can be made non-luminous by
Question 327hard
The maximum adiabatic flame temperature in air is __________ the maximum flame temperature in pure oxygen.
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Question 328hard
Coke oven gas burns with an yellowish flame, because of the presence of
Question 329medium
Blast furnace gas burns with a bluish flame, because of the presence of
Question 330hard
With increase in C/H ratio of a fuel, the amount of CO2 formed on its complete combustion
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Question 331hard
Explosion limit of blast furnace gas is 37 to 71% gas in gas-air mixture. It means that the blast furnace gas will explode when burnt in a confined space, if its concentration in the gas-air mixture is __________ percent.
Question 332easy
Most of the coking coals are
Question 333easy
Coke oven gas compared to blast furnace gas is