Mechanical Engineering

Prepare with the best Mechanical Engineering MCQs with answers and explanations for exams, interviews, and job tests. Our collection covers core topics such as engineering mechanics, thermodynamics, strength of materials, theory of machines, fluid mechanics, heat transfer, manufacturing processes, machine design, and power plant engineering. These Mechanical Engineering multiple-choice questions are designed for students, fresh graduates, and professionals preparing for NTS, PPSC, FPSC, PEC exams, GATE, university entry tests, and recruitment assessments. Strengthen your technical knowledge and problem-solving ability with our updated and comprehensive Mechanical Engineering MCQs.

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5197. A regenerative steam cycle renders

[A]. increased work output per unit mass of steam
[B]. decreased work output per unit mass of steam
[C]. increased thermal efficiency
[D]. decreased work output per unit mass of steam as well as increased thermal efficiency
✅ The correct answer is option D.

5200. The by-pass factor for a cooling coil

[A]. increases with increase in velocity of air passing through it
[B]. decreases with increase in velocity of air passing through it
[C]. remains unchanged with increase in velocity of air passing through it
[D]. may increase or decrease with increase in velocity of air passing through it depending upon the condition of air entering
✅ The correct answer is option A.
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