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 343hard
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 calorific value will be
Question 344medium
Blast furnace coke is made from coal by
Question 345hard
Blast furnace gas constitutes mainly of
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Question 346hard
The advantage of firing pulverised coal in the furnace lies in the fact, that it
Question 347medium
Naphthalene is used for making
Question 348hard
Which of the following is not increased by using preheated combustion air in place of ordinary air at room temperature?
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Question 349hard
Coal is heated in absence of air for 7 minutes at a temperature of about __________ °C, during its volatile matter determination for proximate analysis.
Question 350medium
Low temperature oxidation of coal resulting from bad storage conditions does not decrease its
Question 351medium
Bomb calorimeter can be used to determine the __________ of the coal.