A. Lead
B. Copper
C. Aluminium
D. Wrought iron
✅ The correct answer is option A.
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.
752. Machinability of hard alloys and tool steels is improved by
A. Spherodising
B. Annealing
C. Tempering
D. Normalising
✅ The correct answer is option B.
753. There are one octahedral void and __________ tetrahedral void in the closest packing of atoms.
A. One
B. Two
C. Three
D. None of these
✅ The correct answer is option B.
754. Which of the following commonly used condenser tube materials has the lowest thermal conductivity?
A. Admirability brass
B. Stainless steel
C. Aluminium brass
D. Titanium
✅ The correct answer is option B.
755. Catalyst used in the ‘catalytic converter’ employed in automobile exhaust line for complete combustion/oxidation of carbon monoxide, nitrogen oxides and hydrocarbons is
A. Alumina
B. Platinum
C. Vanadium pentoxide
D. Iron oxide
✅ The correct answer is option B.
756. A reduction process is accompanied with increase in the
A. Number of electrons
B. Oxidation number
C. Both A & B
D. Neither A nor B
✅ The correct answer is option A.
757. The weight of a body at the centre of the earth is
A. Infinite
B. Zero
C. Same as on the surface of the earth
D. None of these
✅ The correct answer is option B.
758. Water-tube boiler is the one, in which
A. Water passes through tubes and flue gases around it
B. Tube carrying hot flue gases are immersed in a pool of water
C. Tubes are placed in vertical position
D. None of these
✅ The correct answer is option A.
759. The factor of safety for brittle materials (having elongation < 5%) is based on the __________ stress.
A. Yield
B. Proof
C. Ultimate
D. None of these
✅ The correct answer is option C.
760. Milk is fat dispersed in water. It is an example of
A. Suspension
B. Emulsion
C. Gel
D. Solution
✅ The correct answer is option B.