Protect the charge from the effects of the products of combustion
Smooth out temperature inequalities on the combustion side of the muffle wall
Both A & B
Neither A nor B
✅ The correct answer is option C.
Engineering
Boost your preparation with the latest Engineering MCQs with answers and explanations. Our collection covers civil engineering, electrical engineering, mechanical engineering, electronics, software engineering, and other core subjects. These multiple-choice questions are designed for students, competitive exam aspirants, and professionals preparing for NTS, PPSC, FPSC, CSS, PMS, PEC exams, university entry tests, and job interviews. Practice online with updated Engineering MCQs to strengthen concepts, improve technical knowledge, and perform better in exams and recruitment tests.
2282. Operating profit of a chemical plant is equal to
profit before interest and tax i.e., net profit + interest + tax
profit after tax plus depreciation
net profit + tax
profit after tax
✅ The correct answer is option A.
2284. Ceramic recuperators compared to metallic recuperators for the same duty
Are lighter
Occupy more space
Are less costly
Have higher pressure differential between flue gas & air side
✅ The correct answer is option B.
2285. Fixed capital investment of a chemical plant is the total amount of money needed to supply the necessary plant and manufacturing facilities plus the working capital for operation of the facilities. Which of the following components of fixed capital investment requires minimum percentage of it ?
Electrical installation cost.
Equipment installation cost.
Cost for piping.
Equipment insulation cost.
✅ The correct answer is option D.
2286. To reduce the stack loss, heat recovery from flue gas can be done by
Preheating of cold stock
Preheating of combustion air
Steam generation in waste heat boilers
All of the above
✅ The correct answer is option D.
2287. Which of the following is a natural draft furnace?
Blast furnace stoves
Power plant boilers
Sintering furnace
None of these
✅ The correct answer is option A.
2288. Amount of coal lost in ash particle, which is carried through the boiler system, depends upon the
Physical nature, ash content and fineness of the coal
Amount of excess air supplied and load on the boiler
Type of burner and combustion chamber
All of the above
✅ The correct answer is option D.
2289. __________ method for profitability evaluation of a project does not account for investment cost due to land.
Net present worth
Pay out period
Discounted cash flow
Rate of return on investment
✅ The correct answer is option B.
2290. Rotary kilns are used in the
Calcination of limestone & dolomite
Cement manufacture
Both A and B
Neither A nor B
✅ The correct answer is option C.