Free Study Material for GATE, ESE, SSC JE & Competitive Exams 2025-26

Spur Gear

Design of Spur Gear • Spur gears are used to transmit motion between two parallel axes shafts. • They are

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Riveted Joint

A rivet is a short cylindrical bar with head integral to it. The cylindrical portion of the rivet is called

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Welded Joints

Welding is a process of joining metallic parts by heating to a suitable temperature with or without application Advantages of

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Bolted Joint

Threaded fastener designed to pass through holes in mating members and to be secured by tightening a nut from the

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Types of Joints

INTRODUCTION Fastener is an important member since machine is a huge structure, so for joining two plates together joining elements

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Linear Programming

It is a mathematical technique for determining optimal allocation of resources. • Objective Function: Clearly identifiable and measurable in quantity

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SDE Analysis

Items in SDE analysis are classified according to their availability as follows: S denotes scarce (mostly imported, short supply) D

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VED Analysis

The VED Analysis is based on the criticality of the items. If the items are arranged in the descending order

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Inventory Models

Economic lot size of an item depends on the following: (i) Possibility of placing repeat orders. (ii) Nature of demand

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