Deficiency of combustion air during combustion of a gaseous fuel_____________________?
Correct answer: C. Both A. & B.
- A. Lengthens the flame
- B. Causes heat loss of fuel by its partial combustion
- C. Both A. & B.
- D. Shortens the flame
Explanation
Insufficient air causes incomplete combustion, so part of the fuel burns only partially and releases less heat. The resulting combustion zone generally extends farther, lengthening the flame; therefore both effects occur.
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
Fossil fuels mean___________________?
Gross & net calorific value is the same for___________________?
A good coking coal should have high ______________ content?
Junker's calorimeter is used to determine the calorific value of______________________?
Which of the following can be made into briquettes without the use of a binder ?
Light oil whose major component is Benzol, is obtained by the distillation of crude tar in the temperature range of _____________ °C?