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Effect of Impurties on Steel

The following are the effects of impurities like silicon, sulphur, manganese and phosphorus on steel. 1. Silicon: The amount of silicon in the finished steel usually ranges from 0.05 to 0.30%. Silicon is added in low carbon steels to prevent them from becoming porous. It removes the gases and oxides, prevent blow holes and thereby makes the steel tougher and ... Read More »

Mechanical Engineering (Definition)

Mechanical engineering is a discipline of engineering that applies the principles of physics and materials science for analysis, design, manufacturing, and maintenance of mechanical systems. It is the branch of engineering that involves the production and usage of heat and mechanical power for the design, production, and operation of machines and tools. Read More »

Theory of Machines (Introduction)

Definition: The subject Theory of Machines may be defined as that branch of Engineering-Science which deals with the study of relative motion between the various parts of a machine and forces which act on them. the knowledge of this subject is very essential for an engineer in designing the various parts of machine. source: Theory of Machines by: R.S Khurmi Read More »

Curvilinear Motion (Definition)

Curvilinear Motion: It is a motion along a curved path, such a motion if confined to one plane is called plane curvilinear motion. Read More »

Newtons First Law of Motion

Definition:It states ” Every body continues in its state of rest or of uniform motion in a straight line, unless acted upon by some external force.” This is also known as law of Inertia. Read More »

Law of Inertia

Definition:It states ” Every body continues in its state of rest or of uniform motion in a straight line, unless acted upon by some external force.” This is also known as law of Inertia. The Inertia is that property of a matter, by virtue of which a body can not move of itself, nor change the motion imparted to it. Read More »

Newtons Second Law of Motion (Definition)

Definition: It states “The rate of change of momentum is directly proportional to the impressed force and takes place in the same direction in which the force acts. Read More »

Mass (Definition)

Definition: It is the amount of matter contained in a given body, and does not very with the change in its position on the earths surface. The mass of the body is measured by direct compraision with a standard mass by using a level balance. Read More »

Weight

Definition: It is the amount of pull, which the earth exerts upon a given body. Since the pull verys with distance of the body from the centre of earth, therefore the weight of the body will very with its position on the earth surface (say latitude and elevation). It is thus obvious, that the weight is force. Read More »

Momentum

Definition: It is the total possessed by a body. Mathematically, Momentum=Mass x Velocity Where: m = mass of the body u = initial velocity of body v = final velocity of a body a = constant acceleration t = time required (in seconds) to change the velocity from u to v. Read More »

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