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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3301. In gears, interference takes place when

the tip of a tooth of a mating gear digs into the portion between base and root circles
gears do not move smoothly in the absence of lubrication
pitch of the gears is not same
gear teeth are undercu
✅ The correct answer is option A.

3304. In a square type engine

geometrical shape is square
diameter and length of piston are same
two cylinders are placed horizontal and two vertical
stroke length and cyli
✅ The correct answer is option D.

3305. Water tube boilers are

internally fired
externally fired
internally as well as externally fired
none of these
✅ The correct answer is option B.
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