Chemical Engineering Archives

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.

481. Steel rods are normally used for concrete reinforcement because concrete and steel have almost equal

A. Tensile strength

B. Compressive strength

C. Young’s modulus

D. Thermal co-efficient of expansion

✅ The correct answer is option D.

482. Identify the false statement

A. Martensitic steels are less susceptible to pitting corrosion than austenitic steels

B. Pitting corrosion is usually very localised

C. Hydrogen embrittlement is facilitated by tensile stress

D. Stress corrosion cracking is facilitated by tensile stress

✅ The correct answer is option A.

483. Which of the following is prone to cup and cone fracture?

A. Cast iron

B. Soft brass

C. Round specimen of ductile metal

D. Flat tensile specimen of ductile metal

✅ The correct answer is option C.

484. Machine tool bodies are usually made of

A. Cast iron

B. Mild steel

C. Wrought iron

D. Copper alloys

✅ The correct answer is option A.

485. The product (s) of roasting of a sulphide ore is (are)

A. Oxide only

B. Sulphate only

C. Oxide and sulphate

D. Dependent on temperature and partial pressure of oxygen & sulphur dioxide

✅ The correct answer is option A.

486. The substance used as a smoke screen in warfare is

A. C₂H₂

B. SiCl₄

C. P₂O₅

D. PCl5

✅ The correct answer is option B.

487. Auto collimator is used to check

A. Flatness

B. Angle

C. Rotor balancing

D. Roughness

✅ The correct answer is option B.

488. Which of the following parameters is actually measured during tensile testing of a specimen using Universal testing machine?

A. Load & elongation

B. Engineering stress & strain

C. True stress & strain

D. Poisson’s ratio & Young’s modulus

✅ The correct answer is option A.

489. Percentage of argon (by volume) in dry atmospheric air is about

A. 0.09

B. 0.3

C. 0.57

D. 0.94

✅ The correct answer is option D.

490. Addition of beryllium to copper is done mainly to produce a/an __________ alloy.

A. Non-sparking & non-magnetic

B. High strength

C. Precipitation hardenable

D. Corrosion resistant

✅ The correct answer is option A.