ENGINEERING
MECHANICS:G205
THEORY/PRACTICAL:
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L
3
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T
0
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P
0
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Credit: 3
Curri. Ref. No.: G205
Prerequisite:
G203
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Total
marks: 100
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Total
Contact hrs :60
Lecture: 45Tutorial:0
Practical:0
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Theory :
100= End
Term Exam: 70+ P.A : 30
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THEORY Total Periods :
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UNIT
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TOPIC/SUB-TOPIC
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HRS
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1
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INTRODUCTION
Definition of
Statics, Mechanics, Kinetics,
Kinematics, Dynamics. Units of Measurement. Units Conversion Scalar and vector quantity
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3
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2
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COMPOSITION
& RESOLUTION OF FORCES
Definition
of force. Measurement and effect of force. Composition of forces.
Methods of finding
resultant of forces
– Analytical and Graphical methods. Classification for forces Law of
Parallelogram of forces, Concepts & equilibrium of forces in
two dimension, Free
body concept and
diagram, Lami’s theorem, equation of equilibrium
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11
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3
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CENTRE
OF GRAVITY AND CENTROID & MOMENT OF INERTIA
Difference
between Centre of Gravity (C.G) and Centroid Methods of finding-out C.G. of
simple geometrical plane figures. C.G. of standard solids: rod, rectangular
prism, circular disk, circular cylinder ,hollow cylinder, circular cone,
solid sphere, hollow sphere and composite solid. Centroid of standard shapes: rectangle,
parallelogram, triangle, circle, quarter circle, semi circle, sector of a
circle and composite area. Standard
Sections: I-Section, C-Section,
H-Section, T- Section, L-Section.
Theorem of moment. Simple numerical problems on determination of C.G. &
Centroid. Concept of moment of inertia and second moment of area. Radius of
gyration. Theorem of perpendicular axis
and parallel axis
(without derivation). Second
moment of area
of common geometrical
sections: Rectangle,
Triangle, Circle (without
derivation); Second moment of
area for L,T and I section
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8
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4
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FRICTION
AND ITS APPLICATIONS
Definition and Concept of Friction. Law of
Friction, Co-efficient of
friction, angle of
friction, angle of repose. Types of friction. Screw Jacks – Friction,
Relation between effort & load. Simple numerical problems
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4
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5
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MOTION
AND ITS APPLICATIONS
Newton’s law of Motion – Applications Angular displacement,
Angular Velocity, Angular
Acceleration, Relative Velocity. Simple Engineering Problems
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3
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6
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CURVILINEAR
MOTION AND CENTRIPETAL FORCE
Definition of Centripetal and Centrifugal forces. Importance of
Super-elevation Expression. Simple Engineering Problem
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5
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7
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WORK,
POWER AND ENERGY
Work done in rotation. Force displacement diagram. Work done in
machines used for lifting. Definition of Power. Power of Engines & Pumps. Fly Wheels –
Changes in speed and in Kinetic Energy. Simple Engineering Problems on work,
Power and Energy.
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5
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8
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SIMPLE
MACHINES
Definition of effort, Mechanical Advantage (MA). Velocity Ratio
(V.R) efficiency of machine, Law of Machines. Screw Jack, Wheel & Axle,
Rope & Pulley. Simple Calculations
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3
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SUGGESTED
LEARNING RESOURCES:
Reference Books :
1.
R. K. Bansal A Text Book
Engineering Mechanics Laxmi
Publications
2.
R. S. KhurmiA Text book of Engineering Mechanics S.Chand& Co Ltd.
3.
S. Ramamurtham Engineering Mechanics & Strength of
Materials DhanpatRai Publishing Co(P)
Ltd.
4.
Basudeb Bhattacharyya Engineering Mechanics Oxford University Press
5.
Ali Hassan and R. A. Khan Fundamentals of Engineering Mechanics Acme Learning Pvt. Ltd.
6.
J.L. Meriam and L.G. Kraige EngineeringMechanicsDynamics, John Wiley and
Sons (Asia) Pvt. Ltd., Singapore, 2002.
7.
I. H. Shames Engineering Mechanics Prentice-Hall of India Pvt. Ltd. New Delhi,
199