15
35
55
75
✅ The correct answer is option B.
Chemical Engineering
Prepare with the best Chemical Engineering MCQs with answers and detailed explanations for exams and job tests. Our collection covers key topics such as chemical process calculations, thermodynamics, fluid mechanics, heat transfer, mass transfer, reaction engineering, instrumentation, and plant design. These Chemical Engineering multiple-choice questions are ideal for students, competitive exam aspirants, and professionals preparing for NTS, PPSC, FPSC, PEC exams, GATE, university entry tests, and job interviews. Practice online with updated Chemical Engineering MCQs to strengthen your concepts and improve technical problem-solving skills.
2302. Chemical engineering plant cost index is used for finding the present cost of a particular chemical plant, if the cost of similar plant at some time in the past is known. The present cost of the plant = original cost  x The most major component of this cost index is
fabricated equipment and machinery.
process instruments and control.
pumps and compressor.
electrical equipments and material.
✅ The correct answer is option A.
2303. Which of the following relationship is not correct is case of a chemical process plant ?
Manufacturing cost = direct product cost + fixed charges + plant overhead costs
General expenses = administrative expenses + distribution & marketing expenses
Total product cost = manufacturing cost + general expenses
Total product cost = direct production cost + plant overhead cost.
✅ The correct answer is option D.
2304. Heat transfer rate to the charge/stock in a furnace does not depend upon the
Type of fuels viz solid, liquid or gaseous
Flue gas temperature
Emissivity of refractory walls
Initial temperature of the charged stock
✅ The correct answer is option A.
2305. Cost of instrumentation in a modern chemical plant ranges from __________ percent of the total plant cost.
5 to 10
20 to 30
40 to 50
60 to 70
✅ The correct answer is option B.
2306. Use of pulverised coal in boilers provides
Higher calorific value
Better combustion
Smokeless burning
Less erosion on furnace wall
✅ The correct answer is option B.
2307. Design of waste heat boiler for recovery of waste heat from furnace gases depends upon the
Quantity & temperature of waste gas
Dust concentration & nature of dust in waste gas
Corrosive nature of the waste gas
All of the above
✅ The correct answer is option B.
2308. Gantt chart (or Bar chart) is helpful in
efficient utilisation of manpower and machines.
preparing production schedule.
efficient despatching of products.
inventory control.
✅ The correct answer is option B.
2309. The amount of compounded interest during ‘n’ interest periods is
p[(1+i)n-1)]
p(1 + i)n
p(1 – i)n
p(1 + in)
✅ The correct answer is option A.
2310. The purpose of controlling the furnace atmosphere is to prevent surface attack by
Oxidation/scaling
Decarburising
Sulphur penetration
Either of the above
✅ The correct answer is option D.