Syllabus Engineering Mechanics - (312312) Learning Scheme Credits Assessment Scheme Actual Contact Hrs./Week SLH NLH Paper Duration Theory Based on LL & TL Based on SL Total Marks CL TL LL Practical FA-TH SA-TH Total FA-PR SA-PR SLA Max Max Max Min Max Min Max Min Max Min 3 1 2 2 8 4 3 30 70 100 40 25 10 - - 25 10 150 Sr. No. Theory Learning Outcomes(TLO's) aligned to CO's. Learning content mapped with Theory Learning Outcomes (TLO's) and CO's. 1. TLO 1.1 Identify the type of machine based on efficiency of machine. TLO 1.2 Calculate effort required and load lifted by the given simple lifting machine. TLO 1.3 Verify law machine for given loading. TLO 1.4 Determine effort required along with efficiency for given machine with varying velocity ratio. Unit - I Simple Lifting Machine (14 Marks) 1.1 Concept of simple lifting machine, load, effort, mechanical advantage, velocity ratio, efficiency of machines, reversible and non-reversible/self locking machines. (IKS*: Hand axeas wedge, Lever in battle, Inclined Plane for loading, Pulleys to lift water in irrigation) 1.2 Concept of ideal machine and its conditions, machine friction, ideal effort, ideal load, effort lost in friction and load lost in friction, maximum mechanical advantage and maximum efficiency. 1.3 Nature of graphs : Load vs. effort, load vs. ideal effort, load vs. MA, load vs. efficiency, Law of machine and its uses. 1.4 Velocity ratios of inclined plane, Differential axle and wheel, worm and worm wheel, Single purchase and double purchase crab winch, Simple screw jack, Weston’s differential pulley block, geared pulley block, two sheave pulley block, three sheave pulley block. (Chapter - 1) 2. TLO 2.1 Describe the characteristics of force. TLO 2.2 Calculate the moment of given forces in a force system. TLO 2.3 Suggest the suitable law for the analysis of given force system. TLO 2.4 Determine the components of given force. TLO 2.5 Calculate the resultant force of given force system analytically. TLO 2.6 Calculate the resultant force of given force system graphically. Unit - II Analysis of Forces (18 Marks) 2.1 Introduction of Mechanics : Engineering Mechanics, Statics, Dynamics, Kinetics, Kinematics, concept of rigid body, Force : definition, unit, graphical representation, Bow’s notation, characteristics, Types of force system. 2.2 Moment of force : Definition, unit, sign conventions, couple and its properties. 2.3 Law related to forces : Law of transmissibility of force, Law of polygon of forces, Varignon’s theorem of moments, Law of moment, Law of parallelogram of forces. (IKS*:Weighing scale in Mohenjodaro, Harappa) 2.4 Resolution of coplanar forces : orthogonal and non orthogonal components of a force. 2.5 Composition of coplanar forces using analytical method. Resultant of collinear, concurrent and non-concurrent force system. 2.6 Composition of coplanar forces using graphical method. Resultant of concurrent force system and parallel force system consisting of maximum four forces only. (Chapter - 2) 3. TLO 3.1 Draw the Free Body Diagram for given loading in given situation. TLO 3.2 Determine the equilibrant of the given concurrent force system. TLO 3.3 Use Lami’s theorem to determine the unknown forces causing equilibrium for given practical situation. TLO 3.4 Identify the type of beam in a given structure. TLO 3.5 Determine reactions in the given type of beam analytically. Unit - III Equilibrium of Forces (14 Marks) 3.1 Equilibrium and its conditions. 3.2 Equilibrant and relation with resultant, Equilibrant of concurrent force system. 3.3 Lami’s Theorem and its applications, Concept of Free body diagram, (Problems unknown not more than two.) 3.4 Types of supports : fixed, simple, hinged, roller and fixed, Types of beams : cantilever, simply supported, overhanging, continuous and fixed. Types of loads : vertical and inclined point load, uniformly distributed load. 3.5 Determination of Beam reactions using analytical method for cantilever simply supported and over hanging beam subjected to vertical load, inclined load and uniformly distributed load (combination of any two types). (Chapter - 3) 4. TLO 4.1 Determine friction force along with coefficient of friction for the given condition. TLO 4.2 Describe the conditions for friction for the give situation. TLO 4.3 Determine friction force in the given situation. TLO 4.4 Draw free body diagram for showing forces acting on a ladder under given condition. Unit - IV Friction of Forces (12 Marks) 4.1 Friction and its relevance in engineering, types and laws of friction, limiting equilibrium, limiting friction, co-efficient of friction, angle of friction, angle of repose, and their relationship. 4.2 Equilibrium of bodies on level surface subjected to force parallel to plane and inclined to plane. 4.3 Equilibrium of bodies on inclined plane subjected to force parallel to the plane only. 4.4 Forces acting on ladder (only free body diagram, no numerical). (Chapter - 4) 5. TLO 5.1 Determine the centroid of given plane figure. TLO 5.2 Determine the centroid of given composite figure. TLO 5.3 Determine center of gravity of given solid. TLO 5.4 Determine Centre of gravity of the given composite solid. Unit - V Centroid and Centre of Gravity (12 Marks) 5.1 Centroid of geometrical plane figures : square, rectangle, triangle, circle, semi-circle, quarter circle(IKS* : Archery arrowheads in Ramayana, Arch in archeological structures such as Mahal, Gol Gumbaz). 5.2 Centroid of composite figures such as I, L, C, T, Z sections (not more than three simple figures). 5.3 Centre of Gravity of simple solids : cube, cuboid, cylinder, cone, sphere and hemisphere (no hollow solids). 5.4 Centre of Gravity of composite solids composed of not more than two simple solids. (Chapter - 5)