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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771. A column is said to be a short column, when

its length is very small
its cross-sectional area is small
the ratio of its length to the least radhis of gyration is less than 80.
the ratio of its lengt
✅ The correct answer is option C.

776. In spheroidising process, the steel is

heated below the lower critical temperature and then cooled slowly
heated upto the lower critical temperature and then cooled in still air
heated slightly above the lower critical temperature and then cooled slowly to a temperature of 600°C
none of the above
✅ The correct answer is option C.