A. 25
B. 35
C. 55
D. 75
✅ The correct answer is option C.
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.
1072. Oxygen cylinders used for autogenous (cutting/welding) purposes are
A. Seamless & made of steel
B. Heat treated before use
C. Made by sand casting
D. Welded steel cylinders
✅ The correct answer is option A.
1073. Glass reacts with
A. H₂SO₃
B. HF
C. HNO₃
D. K₂Cr₂O₇
✅ The correct answer is option B.
1074. Which of the following is an acidic constituent of B.F. slag ?
A. SiO₂
B. FeO
C. MgO
D. CaO
✅ The correct answer is option A.
1075. Strain hardening effect in a metal subjected to cold working is due to the __________ mechanism.
A. Fracture
B. Dislocation
C. Slip
D. Twinning
✅ The correct answer is option C.
1076. What is the range of tempering temperature (°C) for most of the materials ?
A. 75-100
B. 200-300
C. 350-450
D. 500-600
✅ The correct answer is option B.
1077. The dimensions of Planck’s constant is the same as that of the
A. Kinetic energy
B. Momentum
C. Electrostatic potential
D. None of these
✅ The correct answer is option D.
1078. Cassiterite is an ore of
A. Tin
B. Lead
C. Molybdenum
D. Chromium
✅ The correct answer is option A.
1079. Tumbling is the process of improving the __________ of the materials/parts.
A. Surface finish
B. Fatigue limit
C. Creep limit
D. Surface cleanlineses
✅ The correct answer is option D.
1080. Out of the following substances, one ton of __________ will store the maximum heat for a rise of 30°C in temperature.
A. Steel
B. Lignite
C. Water
D. Lime stone
✅ The correct answer is option C.