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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5071. Crater wear occurs mainly on the

[A]. nose part, front relief face and side relief face of the cutting tool
[B]. face of the cutting tool at a short distance from the cutting edge only
[C]. cutting edge only
[D]. front face only
✅ The correct answer is option B.

5072. Work sampling is applied for

[A]. estimation of the percentage utilisation of machine tools
[B]. estimating the percentage of the time consumed by various job activities
[C]. finding out time standards, specially where the job is not repetitive and where time study by stop watch method is not possible
[D]. all of the above
✅ The correct answer is option D.

5075. Dispatching

[A]. prescribes the sequence of operations to be followed
[B]. determines the programme for the operations
[C]. is concerned with the starting of processes
[D]. regulates the progress of job through various processes
✅ The correct answer is option C.

5078. For unequal width of butt straps, the thickness of butt straps are

[A]. 0.75 t for wide strap on the inside and 0.625 t for narrow strap on the outside
[B]. 0.75 t for narrow strap on the inside and 0.625 t for wide strap on the outside
[C]. 0.75 t for both the straps on the inside and outside
[D]. 0.625 t for both the straps on the inside and outside
✅ The correct answer is option A.
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