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Arc Efficiency

In order to calculate heat input rates to the workpiece based on measured values of the arc voltage and current, it is necessary to know the proportion of arc energy that is transferred to the workpiece. This quantity is known as arc efficiency. Heat is dissipated from the arc by conduction, convection and radiation. Conduction […]

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TIG Welding Process or Gas Tungsten Arc Welding (GTAW)

TIG Welding Process, TIG stands for Tungsten Inert Gas. TIG is also known as Gas Tungsten Arc Welding (GTAW). It is a process that uses a non-consumable tungsten electrode to form the weld. Generally, it uses filler metal but in some autogenous weld, it does not require it. To protect the weld area from atmospheric […]

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Important Terms Used in Riveted Joints

Riveted joint:  A rivet consists of a cylindrical shank with a head at one end. This head is formed on the shank by an upsetting process. In rivet terminology, the closing head is called point The cylindrical portion of the rivet is called the shank or body and the lower portion of the shank as a tail. The rivets are used […]

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Direct Links For Latest Off campus drives for 2023 batch

Direct Links For Latest Off campus drives for 2023 batch Graduates who are currently studying in their Pre-final year and are actively looking for latest off campus drives for 2023 batch can apply for the drives from the below table.   All the candidates are requested to check the eligibility criteria and read all the […]

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Problems on Trains – General Questions

1. A train running at the speed of 60 km/hr crosses a pole in 9 seconds. What is the length of the train? A 120 metres B 180 metres C. 324 metres D. 150 metres View Answer 2. A train 125 m long passes a man, running at 5 km/hr in the same direction in […]

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Types of Thermodynamic Process: Cyclic, Isobaric, Isochoric, Isothermal, Adiabatic Processes & Equations

Types of Thermodynamic Process: Cyclic, Isobaric, Isochoric, Isothermal, Adiabatic Processes & Equations The thermodynamic process depends upon factors like temperature (T), Pressure (P), Volume (V) and heat exchanged by the system (ΔQ). Depending on the change in these physical properties, the Thermodynamic processes are divided into different types. These types have some relations governing them. […]

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