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.

1011. Load cells used for the measurement of weight has

A. Compact & rugged construction with an accuracy of 0.1 to 1%

B. No moving parts and incurs negligible deflection under load

C. Provision of thermal compensation and is hermetically sealed

D. All of the above

✅ The correct answer is option D.

1012. Insulation of liquid surface can be achieved by __________ on top of its surface.

A. Floating hollow polypropylene spheres

B. Spraying alumina powder

C. Putting cement

D. None of these

✅ The correct answer is option A.

1013. Presence of small quantity of sulphur in low carbon steel improves its

A. Formability

B. Machinability

C. Weldability

D. Hardenarality

✅ The correct answer is option B.

1014. With increase in compression ratio, the volumetric efficiency of air compressor

A. Increases

B. Decreases

C. Remains same

D. May increase or decrease (depends on the suction pressure)

✅ The correct answer is option A.

1015. Which of the following exemplifies resemblence with the extrusion process ?

A. Pneumatic ejection of abrasive solid particles through a nozzle

B. Toothpaste pouring out of the tube

C. Ejection of abrasive slurry through an opening

D. Viscous lubricant pouring out through its container’s mouth

✅ The correct answer is option B.

1016. Two stroke engine compared to a four stroke engine has

A. Higher efficiency

B. Less fuel consumption

C. Higher power to weight ratio

D. Lower initial cost

✅ The correct answer is option C.

1017. Silicon percentage in acid resistant cast iron is about

A. 4

B. 8

C. 14

D. 20

✅ The correct answer is option A.

1018. The property of material, by which a given amount of energy is absorbed by it, without plastic deformation is called

A. Resilience

B. Toughness

C. Ductility

D. Impact strength

✅ The correct answer is option A.

1019. Ceramic compounds as compared to metallic compounds

A. Crystallise faster

B. Resist greater tensile stress at room temperature

C. Have higher melting temperature

D. Are better conductor of electricity at higher temperature

✅ The correct answer is option C.

1020. Air standard Otto cycle is more efficient than the diesel cycle for the same

A. Heat addition & compression ratio

B. Heat addition & pressure

C. Compression ratio & pressure

D. Cylinder dimension & rpm

✅ The correct answer is option A.