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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1536. According to Newton’s first law of motion,

every body continues in its state of rest or of uniform motion, in a straight line, unless it is acted upon by some external force
the rate of change of momentum is directly proportional to the impressed force, and takes place in the same direction, in which the force acts
to every action, there is always an equal and opposite reaction
none of the above
✅ The correct answer is option A.