Engineering

Boost your preparation with the latest Engineering MCQs with answers and explanations. Our collection covers civil engineering, electrical engineering, mechanical engineering, electronics, software engineering, and other core subjects. These multiple-choice questions are designed for students, competitive exam aspirants, and professionals preparing for NTS, PPSC, FPSC, CSS, PMS, PEC exams, university entry tests, and job interviews. Practice online with updated Engineering MCQs to strengthen concepts, improve technical knowledge, and perform better in exams and recruitment tests.

📘 Chemical Engineering
📘 Civil Engineering
📘 Electrical Engineering
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📘 Software Engineering MCQs

41. Feed check valve is used in steam boilers to

A. Check the water level in the boiler
B. Check the feed water flow rate
C. Feed high pressure water to boiler and guard against its backflow through it
D. None of these
✅ The correct answer is option C.

43. Pick out the wrong statement about nucleate boiling.

A. Bubble generation is by expansion of entrapped gas/vapour at small cavities in the surface
B. Surface temperature is greater than the saturation temperature of the liquid
C. Heat transfer from the surface of the liquid is less than that in film boiling
D. The temperature is less than that of film boiling
✅ The correct answer is option D.

45. LASER

A. Stands for Light Amplification by Stimulated Emission of Radiation
B. Has the same intensity as visible light
C. Can’t be used for cutting metals
D. None of these
✅ The correct answer is option A.

48. In chemical dehumidification process

A. Wet bulb temperature increases
B. Dry bulb temperature remains constant
C. Dew point temperature increases
D. Dry bulb temperature increases
✅ The correct answer is option B.