### A Text Book’s of Engineering Machanic’s by R.S. KHURMI.

Table of Contents

**ENGINEERING MECHANICS:-**

The subject of Engineering Mechanics is that branch of Applied Science, which deals with the **laws and principles of Mechanics**, alongwith their applications to engineering problems. As a matter of fact, knowledge of Engineering Mechanics is very essential for an engineer in planning, designing and construction of his various types of structures and machines.

In order to take up his job more skilfully, an engineer must persue the study of Engineering Mechanics in a most systematic and scientific manner.

### DIVISIONS OF ENGINEERING MECHANICS –

The subject of Engineering Mechanics may be divided into the following two main groups:

- 1. Statics, and
- 2. Dynamics.

### STATICS :

It is that branch of Engineering Mechanics, which deals with the forces and their effects, while acting upon the bodies at rest.

### DYNAMICS :

It is that branch of Engineering Mechanics, which deals with the forces and their effects, while acting upon the bodies in motion. The subject of Dynamics may be further sub-divided into the Following two branches :

- 1. Kinetics, and
- 2. Kinematics.

**KINETICS – **

It is the branch of Dynamics, which deals with the bodies in motion due to the application of forces.

**KINEMATICS –**

It is that branch of Dynamics, which deals with the bodies in motion, without any referenceto the forces which are responsible for the motion.

### FUNDAMENTAL UNITS –

The measurement of physical quantities is one of the most important operations in engineering. Every quantity is measured in terms of some arbitrary, but internationally accepted units, called fundamental units.

All the physical quantities, met with in Engineering Mechanics, are expressed in terms of three fundamental quantities, i.e.

– Length,

– Mass and

– Time.

### DERIVED UNITS –

Sometimes, the units are also expressed in other units (which are derived from fundamental units) known as derived units e.g. units of area, velocity, acceleration, pressure etc.

## SYSTEMS OF UNITS –

There are only four systems of units, which are commonly used and universally recognised.

These are known as :

1. C.G.S. units,

2. F.P.S. units,

3. M.K.S. units and

4. S.I. units.

**Some Example of S. I. Unit (international system of unit )-**

- Density (Mass density) – kg / m3
- Force – N (Newton)
- Pressure – N/mm2 or N/m2
- Work done (in joules) – J = N-m
- Power in watts – W = J/s

**Books suitable for the Engineering students –**

This book is very useful and suitable for the student studying in the field of Engineering .

The main purpose of this book is to provide the student with a clear and thorough presentation of the theory and application of engineering mechanic’s

## A TEXTBOOK of APPLIED MECHANICS to the Students of Degree, Diploma and A.M.I.E. (I) classes.

This object of this book is to present the subject matter in a most concise, compact, to-the-point and lucid manner.

**Contents** –

- 1. Introduction
- 2. Composition and Resolution of Forces
- 3. Moments and Their Applications
- 4. Parallel Forces and Couples
- 5. Equilibrium of Forces
- 6. Centre of Gravity
- 7. Moment of Inertia
- 8. Principles of Friction
- 9. Applications of Friction
- 10. Principles of Lifting Machines

Remaining 26 Contents are given in book.

### PDF INFO –

**Books Name** : A text book’s of Engineering Machanic’s by R.S. KHURMI.

**Publisher** – S. CHAND & COMPANY LTD. (AN ISO 9001 : 2000 COMPANY) RAM NAGAR, NEW DELHI – 110 055

**Writer :** R.S. KHURMI.

**Size of PDF :** 22.8 MB

**Number of Pages :** 799

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