Chemical Engineering Archives

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.

3151. While the first commercial low temperature coal carbonisation plant is located at Neyveli (in Chennai), the second such plant has been built at

Dankuni (West Bengal)

Dhanbad

Singreni (AP.)

Raniganj

✅ The correct answer is option A.

3152. Of the total tar present in raw coke oven gas, the tar recovered in primary cooler is about __________ percent.

✅ The correct answer is option B.

3153. Coke oven gas constitutes mainly of

H₂ & CO

H₂ & CH₄

CH₄ & CO

H₂ & CO₂

✅ The correct answer is option B.

3154. Out of the following fuels, the difference between gross and net calorific value will be minimum in case of

Coke oven gas

Water gas

Natural gas

Blast furnace gas

✅ The correct answer is option D.

3155. Which of the following is a lean fuel gas?

Coke oven gas

LPG

Blast furnace gas

Natural gas

✅ The correct answer is option C.

3156. Fuel combustion is never cent per cent efficient due to

Incomplete combustion

Dry gas/stack gas loss

Moisture loss

All of the above

✅ The correct answer is option D.

3157. Orsat apparatus

Gives flue gas analysis on dry basis

Determines N₂ in flue gas indirectly

Can

All of the above

✅ The correct answer is option D.

3158. Tar yield in the low temperature and high temperature carbonisation of dry coal may be respectively __________ percent.

3 & 10

10 & 3

10 & 20

15 & 8

✅ The correct answer is option B.

3159. Which of the following will be unsuitable for dust cleaning from flue gas at 400°C from a pulverised coal fired boiler ?

Multicyclones

Bag filter

Wet scrubber

Hydrocyclones

✅ The correct answer is option B.

3160. Main constituents of benzol are

Benzene, toluene & xylene

Tar & creosote

Ammonia & phenol

Anthracene & phenol

✅ The correct answer is option A.