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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3071. In a four stroke cycle petrol engine, , the compression

starts at 40° after bottom dead centre and ends at 30° before top dead centre
starts at 40° before bottom dead centre and ends at 30° after bottom dead centre
starts at bottom dead centre and ends at top dead centre
may start and end anyw
✅ The correct answer is option A.

3073. The strength of a riveted joint is equal to the

pull required to tear off the plate per pitch length (Pt)
pull required to shear off the rivet per pitch length (Ps)
pull required to crush the rivet per pitch length (Pc)
minimum value of Pt, P
✅ The correct answer is option D.
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