A. 0
B. 100
C. 50
D. None of these
✅ 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.
742. Production of a hollow product by inflation of a tube or parison is called the __________ process.
A. Blow moulding
B. Calendering
C. Extrusion
D. Injection
✅ The correct answer is option A.
743. Gantt charts are used for streamlining the
A. Inventory control
B. Production schedule
C. Sales forecasting
D. Quality control
✅ The correct answer is option B.
744. Friction factor for fluid flow in pipe does not depend upon the
A. Pipe length
B. Pipe roughness
C. Fluid density & viscosity
D. Mass flow rate of fluid
✅ The correct answer is option A.
745. Rain drops falling through atmospheric air attain limited terminal velocity, because of
A. Upward thrust due to air
B. Viscous force exerted by air
C. Surface tension effects of water
D. Force of gravity
✅ The correct answer is option B.
746. A friction lighter is normally used for lighting gas welding torch, because of the reason that
A. Its initial cost is very low
B. Duration of spark created is very small
C. Safety of welder is ensured
D. It is easier to operate & maintain
✅ The correct answer is option C.
747. Tempering of a material does not improve its
A. Machinability
B. Toughness
C. Internal stress level
D. Softness
✅ The correct answer is option A.
748. Surface tension is due to the __________ forces.
A. Viscous
B. Adhesive
C. Cohesive
D. All of these
✅ The correct answer is option C.
749. __________ iron is produced by the annealing of white cast iron.
A. Malleable
B. Nodular
C. Ductile
D. Grey
✅ The correct answer is option A.
750. For a first order chemical reaction, the concentration of the reactant decreases __________ with time.
A. Linearly
B. Exponentially
C. Logarithmically
D. Inversely
✅ The correct answer is option A.