Preheating of a gaseous fuel results in increased____________________?
Correct answer: B. Flame temperature
- A. Flame length
- B. Flame temperature
- C. Quantity of flue gas
- D. Ignition temperature
Explanation
Preheating a gaseous fuel raises the initial enthalpy of the reactants, so less heat is needed to reach the reaction temperature and the adiabatic flame temperature increases. It does not raise the ignition temperature, which is a fuel-property threshold.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
Practise Chemical Process Principles
2,710 free Chemical Process Principles MCQs from Chemical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemical Engineering questions like this
Chemical Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Chemical Process Principles questions
Which of the following is not applicable to fluidised bed combustion of coal ?
With increase in calorific value of fuels, their adiabatic flame temperatures__________________?
Low temperature carbonisation of coal takes place at ______________ °C?
Mineral matter content (M) and ash content A. in coal are approximately related as _______________?
Which of the following gaseous fuels is likely to have the highest gross calorific value ?
Coke oven gas compared to blast furnace gas is________________?