601. Annealing ofwhite cast iron produces __________ iron.
A. Grey
B. Nodular
C. Malleable
D. Spheroidal
✅ The correct answer is option C.
Chemical Engineering
Prepare with the best Chemical Engineering MCQs with answers and detailed explanations for exams and job tests. Our collection covers key topics such as chemical process calculations, thermodynamics, fluid mechanics, heat transfer, mass transfer, reaction engineering, instrumentation, and plant design. These Chemical Engineering multiple-choice questions are ideal for students, competitive exam aspirants, and professionals preparing for NTS, PPSC, FPSC, PEC exams, GATE, university entry tests, and job interviews. Practice online with updated Chemical Engineering MCQs to strengthen your concepts and improve technical problem-solving skills.
602. About __________ ton of coke is required in a cupola to produce one ton of casting.
A. 0.03
B. 0.3
C. 0.8
D. 1.5
✅ The correct answer is option B.
603. Which of the following is not a dielectric material?
A. Cotton, silk and paper
B. Asbestos, glass, porcelain and mica
C. Rubber and polymeric resins
D. All of the above
✅ The correct answer is option C.
604. Presence of sulphur in the fuel fired in a furnace
A. Contributes to its heating value
B. Helps in electrostatic precipitation of ash from flue gases
C. Corrodes ducts & air preheater, if the flue gas temperature is low
D. All of the above
✅ The correct answer is option D.
605. Inertial forces are obtained, when the elastic forces are multiplied by __________ number.
A. Mach
B. Froude
C. Reynolds
D. Euler
✅ The correct answer is option A.
606. __________ is the hardest material out of the following.
A. Boron carbide
B. Tungsten carbide
C. Hardened steel
D. Silicon carbide
✅ The correct answer is option A.
607. Which of the following polymers is obtained by copolymerisation of three monomers?
A. SAN
B. ABS
C. SBR
D. PTFE
✅ The correct answer is option B.
608. Material of construction of foundary crucible is
A. Lead
B. Stainless steel
C. Graphite
D. Cast iron
✅ The correct answer is option C.
609. The order of a chemical reaction
A. Can be determined only experimentally
B. Can be determined from the stoichiometry of the reaction
C. Can not be zero
D. Can be fractional
✅ The correct answer is option B.
610. Which of the following is an example of cathodic protection of metals against corrosion ?
A. Painted steel
B. Galvanised iron
C. Case hardened steel
D. Lead lined reactor
✅ The correct answer is option B.