A. 768
B. 1127
C. 1359
D. 1480
✅ The correct answer is option B.
Basic Chemical Engineering MCQs
Practice Basic Chemical Engineering MCQs with answers and explanations to prepare for exams, interviews, and job tests. Our question bank covers fundamental topics such as units and dimensions, material and energy balances, fluid mechanics, thermodynamics, heat transfer, mass transfer, and chemical process basics. These multiple-choice questions are designed for students, fresh graduates, and competitive exam aspirants preparing for NTS, PPSC, FPSC, PEC exams, GATE, university entry tests, and recruitment assessments. Strengthen your core concepts and problem-solving skills with our updated Basic Chemical Engineering MCQs.
832. The heat released by cooling one mole of copper from 400 K to room temperature (300 K) is (assume : Cp of copper is 23 J K⁻¹mole⁻¹)
A. 2300 J
B. 4600 J
C. 230 J
D. 2.3 x 106 J
✅ The correct answer is option A.
833. A suitable lubricant used for watches is
A. Metallic soap solution
B. Grease
C. Palm oil
D. Hazel-nut oil
✅ The correct answer is option D.
834. While the oxy-acetylene flame produces a temperature of 3200°C, the temperature produced by oxy-hydrogen flame is about __________ °C.
A. 1800
B. 2000
C. 2400
D. 3000
✅ The correct answer is option B.
835. Presence of sulphur in steel reduces the
A. Hardness
B. Grain size
C. Tensile strength
D. Toughness & transverse ductility
✅ The correct answer is option D.
836. Out of the following, the joint produced by __________ has the lowest strength.
A. Soldering
B. Welding
C. Brazing
D. Rivetting
✅ The correct answer is option A.
837. Copper deposits are found in India at the following location:
A. Kudremukh
B. Kolar
C. Khetri
D. Ramagundam
✅ The correct answer is option C.
838. Copper is not present as an alloying constituent in
A. Silicon bronze
B. Constantan
C. Nichrome
D. Delta metal
✅ The correct answer is option C.
839. The hardness of a grinding wheel is specified by the
A. Alphabetical letter
B. Rockwell hardness number
C. Brinell hardness number
D. None of these
✅ The correct answer is option A.
840. Water hammer is caused in steam carrying pipelines, because of
A. Partial condensation of steam
B. Vibration of the pipeline
C. High degree of superheat of steam
D. Its exposure to torrential rain
✅ The correct answer is option A.