A. Horizontal
B. Vertical
C. Inclined
D. Any
✅ The correct answer is option D.
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.
442. The most commonly used moderator in nuclear power plants is
A. Graphite
B. Light water
C. Heavy water
D. Berellium
✅ The correct answer is option A.
443. The material used for coating the welding electrode is termed as the
A. Flux
B. Slag
C. Protective layer
D. Binder
✅ The correct answer is option B.
444. A floating body oscillates about its __________ when it is displaced slightly.
A. Centre of gravity
B. Metacentre
C. Centre of buoyancy
D. Centre of pressure
✅ The correct answer is option B.
445. Methyl orange indicator turns
A. Orange yellow in alkaline medium
B. Orange yellow in acidic medium
C. Colourless in acidic medium
D. Colourless in basic medium
✅ The correct answer is option A.
446. Young’s modulus of a material is the measure of its
A. Stiffness
B. Malleability
C. Creep resistance
D. Tensile strength
✅ The correct answer is option A.
447. Cobalt – 60 is used as a source of __________ in medical therapy & industrial radiography.
A. X-rays
B. Γ-rays
C. Α-rays
D. Β-rays
✅ The correct answer is option B.
448. Consider an ideal solution of components A and B. The entropy of mixing per mole of an alloy containing 50 wt% B is
A. R ln 2
B. -R ln 2
C. 3 R ln 2
D. -3R ln 2
✅ The correct answer is option A.
449. Holes for rivetting purposes should be preferably made by
A. Cutting torch
B. Drilling
C. Punching
D. None of these
✅ The correct answer is option B.
450. Which of the following heat treatment processes is used for softening the hardened material?
A. Normalising
B. Tempering
C. Annealing
D. None of these
✅ The correct answer is option B.