(^760) A Textbook of Engineering Mechanics
- of solid bodies, 87
- of symmetrical sections, 82
- of unsymmetrical sections, 84
Centre of pressure, 797 - of an inclined surface, 801
- of a composite section, 811
- of a vertical surface, 789
- of oscillation, 600
Centrifugal force, 628, 629 - tension, 748
Centripetal acceleration, 628 - force, 627
- governor, 630
- tension, 748
Centroid, 78
C.G.S. Units, 4
Characteristics of couples, 49 - force, 14
Classification of coupl, 49 - parallel forces, 42
Clearance, 764
Clockwise couple, 49 - moments, 27
Coefficient of friction, 141 - restitution, 610
Collnear forces, 17
Composition of forces, 15
Compound epicyclic gear train, 781 - levers, 39
- machine, 188
- pendulum, 597
- train of wheels, 760
Compressive stress, 270
Concentrated load, 239
Concept of virtual work, 388
Concurrent forces, 17
Conditions of equilibrium, 72 - for transmission of maximum power,
751 - for reversibility of a machine, 190
- for simple harmonic motion, 522
Conical bodies floating in a liquid, 830 - pendulum, 603
Construction of space diagram, 241,
324 - vector diagram, 241, 324
Converse of the law of polygon of forces,
71 - triangle of forces, 71
Coplanar forces, 17
Couple, 48
Cross belt drive, 738
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D' Alembert's principle, 543
Dedendum circle, 764
Deficient frame, 269
Depth of thread, 177- tooth, 764
Derived units, 4
Design of spur wheels, 772
Differential pulley block, 211 - screw jack, 231
- wheel and axle, 208
Direct impact of two bodies, 609 - of a body on a fixed plan, 620
Disadvantages of gear drive, 763
Distance traversed, 408 - travelled in nth second, 420
Divisions of Engineering Mechanics, 3
Double purchase crab winch, 221
Driving of a vehicle, 720
Dynamics, 3 - friction, 140
EEEEE
Effect of a force, 14- superelevation, 631, 632
Efficiency of an engine, 658 - of a machine, 189
- of a screw jack, 181
Energy, 668 - Law of conservation of, 673
- Transformation of, 672
- Units of, 668