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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2522. The overall efficiency of the compressed air system is the

ratio of shaft output of the air motor to the shaft input to the compressor
ratio of shaft input to the compressor to the shaft output of air motor
product of shaft output of air motor and shaft input to the compressor
none of the above
✅ The correct answer is option A.

2527. EDM machining is applied for

shaping carbide dies and punches having complicated profiles
making large number of small holes in sieves and fuel nozzles
embossing and engraving on harder materials
all of these
✅ The correct answer is option D.
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