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.

1231. Thermal shock produced by cooling is more dengerous/deleterious than that produced by heating a surface, because of the reason that

A. Cooling produces tension on the surface

B. Cooling produces compression on the surface

C. Heating does not produces any thermal stress

D. Heating produces compression on the surface

✅ The correct answer is option A.

1232. Paint spray gun works on the principle of

A. Bernoulli’s theorem

B. Boyle’s law

C. Newton’s law of viscosity

D. None of these

✅ The correct answer is option A.