# NIT Jalandhar Syllabus Mechanical Engineering 1st Year

ME-101 Engineering Graphics

Introduction: Engineering Graphics/Technical Drawing –a Visual Science. Types of Engineering Drawing, Introduction to drawing equipment and use of instruments, Application of Symbols and conventions in drawing Practice. Types of lines and their use, BIS codes for lines, Technical lettering as per BIS codes, Introduction to dimensioning, Concepts of scale drawing, Types of scales.

Theory of Projections: Relevance of projection, Theory of projections, Perspective, Orthographic,

Axonometric and their basic principles, system of orthographic projection: in reference to quadrants and octants, illustration through simple problems of projection.

Projection of Points: Projection in quadrants and octants, Projection of point on auxiliary planes.

Projection of Lines: Parallel to both H P and V P, Parallel to one and inclined to other, Contained in profile plane, Other typical cases: three view projection of straight lines, true length and angle orientation of straight

line: rotation method and auxiliary plane method, Distance between two non-intersecting lines, trace of line.

Projection of Planes: Difference between plane and lamina, Projection of lamina, Parallel to one and perpendicular to other, Perpendicular to one and inclined to other, Inclined to both reference planes, Plane oblique to three reference planes, application of auxiliary planes, trace of planes.

Projection of Solids: Definition of solids, types of solids, and elements of solids, Projection of solids in first or third quadrant, Axis parallel to one and perpendicular to other, Axis parallel to one inclined to other, Axis inclined to both the principle plane, Axis perpendicular to profile plane and parallel to both H P and V P, visible and invisible details in the projection, Use of rotation and auxiliary plane method.

Section of Solids: Definition of Sectioning and its purpose, Procedure of Sectioning, Illustration through examples, Types of sectional planes-application to few examples.

Intersection of Surfaces/Solids: Purpose of intersection of surfaces, Intersection between the two cylinder, two prisms, prism and pyramid, pyramid and pyramid, cylinder and prism, cone and cylinder, sphere and cylinder etc., use of cutting plane and line method.

Development of Surface: Purpose of development, Parallel line, radial line and triangulation method, Development of prism, cylinder, cone and pyramid surface for both right angled and oblique solids, Development of surface.

Isometric Projection: Classification of pictorial views, Basic Principle of Isometric projection, Difference between isometric projection and drawing, Isometric projection of solids such as cube, prism, pyramid and cylinder, Discussion on isometric projection of simple machine parts.

Orthographic Projection: Review of principle of Orthographic Projection, Examples of simple machine aprts, Drawing of Block and machine parts.

Books Recommended

1. Narayana K L and Kanaiah P, “Engineering Graphics”, Tata McGraw Hill Publishing company

Limited, New Delhi (1992).

2. Gill P S, “Engineering Graphics and Drafting”, Katria and Sons, Delhi (2001).

3. Bhat N D, “Elementary Engineering Drawing-Plane and solid Geometry”, Chartotar Publishing

House, Anand (1988).

4. Luzzadde Warren J, “fundamentals of Engineering Drawing”, Prentice Hall of India Private Limited, New Delhi (1988).

5. Bertoline G R , Wiebe E N, Miler G L L & Mother J L, “Technical Graphics Communication”, Irwin McGraw Hill, New York (1997).

ME-102 Element of Mechanical Engineering [3 1 0 4]

Part –I: Mechanics Solids

Introduction: System of forces, coplanar concurrent force system, Composition and Resolution of force, Equilibrium of rigid bodies, free body diagram, Lami’s Theorem.

Analysis of Framed Structure: Reaction in beam with different end conditions, Determination of reactions in members of trusses: a) Analytical Methods b) Graphical Method.

Centre of Gravity and Moment of Inertia: Concept of C.G. and Centroid, Position of Centroid, Theorem of Parallel and Perpendicular Axes, Moment of inertia of simple geometrical figures.

Stress and Strain: Concept of Stress and Strain, Simple Stresses, Tensile, Compressive, Shear, Bending and Torsion, Stress-Strain Curves, Elongation of bars, Composite bars, Thermal Stresses, Elastic Constants, Mohr’s Circle.

Part-II Thermal Science

Basic Concepts: Introduction and scope of Thermodynamics, Thermostatics, Thermodynamic properties, Cycle integral for property and non-property variable, Stored and transit forms of energy, Thermodynamic systems and control volume, Isolated system, Universe, Steady flow system, their characteristics and examples, Types of work, Thermodynamic Processes.

Laws of Thermodynamics: Zeroth Law, First Law of Thermodynamics, Second Law of Thermodynamics, Carnot Theorem, Concept of entropy, availability and irreversibilities.

Pure Substances: Behaviour of pure substances, Properties of steam and their calculations, Vapor power cycleRankine vs. Carnot, modified Rankine cycle.

Air Standard Cycles: Assumptions, Analysis of Otto, Diesel, Dual and Joule cycles, Calculation of cycle work and state values.

Introduction to Heat Transfer, Refrigeration and Air-Conditioning.

Books Recommended

1. Timoshenko S P and Young D H, “Engineering Mechanics”, McGraw Hill (International) 4/e, New Delhi (1984).

2. Beer, Ferdinand: Johnston, Jr., E. Russell, “Vector Mechanics for Engineers: Statics (in SI Units)”, 3rd Edition Tata McGraw Hill, 2000.

3. R C Hibbeler, “Engineering Mechanics: Statics (in SI Units)”, Pearson Education, India, 2000.

4. Rogers G and Mayhew Y, “Engineering Thermodynamics”, 4th Ed., Pearson Education, New Delhi

(1980).

5. Jones J B and Hawkins J A, “Engineering Thermodynamics”, John Wiley and Sons, Delhi (1998).

6. Nag P K, “Engineering Thermodynamics”, Tata McGraw Hill Book Co, New Delhi (1999).

7. Joel R, “Basic Engineering Thermodynamics”, 5th Ed., Addison Wesley, New Delhi (1999).

8. Sonnatag R E, Borgnakke and Van Wylen G, “Fundamentals of Thermodynamics”, John Wiley,

New Delhi (2000).ME-103 Elements of Mechanical Engineering Lab [0 0 2]

(a) Strength of Materials:

1. Determination of Young’s modulus, Yield Point, tensile strength, percentage reduction in area and percentage elongation for steel, aluminum, brass and cast iron specimens on universal testing machine.Also plot the stress strain diagram.

2. To perform the compression test for cast iron specimen on universal testing machine.

3. To determine the deflection for mild steel specimen and verify the beam formula for specimen in bending.

4. Determination of shear strength for steel and aluminum specimen under torsion using a torsion testing machine.

(b) Thermal Science:

1. To find the thermal conductivity of the composite wall.

2. To determine heat transfer coefficient in natural and forced convection using pin fin apparatus.

3. To determine the emissivity of a given plate at different temperatures.

4. Study of Two and Four stroke I.C. Engines.