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.

1270. In worm, gears, pitch lead angle is

half the angle between two inclined faces in axial plane
the angle between the tangent to the pitch helix and the plane of rotation
the angle between the tangent to the pitch helix and an element of the cylinder
none of the above
✅ The correct answer is option B.