Theory Examination (Semester-II) 2015-16 ENGINEERING MECHANICS

SECTION – A: Brief Explanation of Conceptual Questions

Section A includes fundamental theory questions that test basic understanding of Engineering Mechanics. It covers topics like force systems, transmissibility, Varignon’s theorem, couples and moments, types of beams and supports, friction angles, radius of gyration, the work-energy principle, D’Alembert’s principle, and conservation of momentum. These questions require clear definitions and short explanations.

Important lines to include:
• Focus on basic principles of mechanics.
• Answers must be short, clear, and concept-based.
• Most questions are definition + brief explanation.

SECTION – B: Brief Explanation of Numerical and Application Questions

Section B contains numerical and practical problems. Students must solve questions related to reactions on bodies, friction, shear force and bending moment diagrams, truss analysis, moment of inertia, impact problems, and bending stresses. These require diagrams, formulas, and step-by-step numerical solutions.

Important lines to include:
• This section checks problem-solving ability.
• Use correct formulas and proper diagrams.
• Each answer needs calculation + explanation.

SECTION – C: Brief Explanation of Long Answer Questions

Section C asks for detailed solutions, derivations, and conceptual clarity. Students work on calculations like braking moment on a drum, centroid of composite areas, torsion theory, and the design of hollow shafts. These answers must be well-explained with proper reasoning and engineering principles.

Important lines to include:
• Answers should be long and descriptive.
• Include diagrams, derivations, and formulas.
• Logical presentation is important for full marks.