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SHIELDING GASES
Shielding gas is directed by the torch to the arc and weld pool to protect the electrode and the molten weld metal from atmospheric contamination.
Argon and helium or mixtures of the two are the most common types of inert gas used for the shielding. Argon hydrogen mixtures are used for special applications.
concept of cascade sysytems
Support reaction: Explain the support reaction? What are different types of support and their reactions? Sol.: When the numbers of forces are acting on a body, and the
Defrance between entrpy and enthalpy
Suspension System, Wheels and Tyres: There are numerous types of suspensions for connecting the wheels to frame body. The suspension plays the vital role in handling and driving
Feeler Gauge: It is used to measure minor clearances. Feeler gauges come in set of a few blades of different thickness as shown in Figure. It is used to measure the spark plug gap
Evaluate the acceleration of the three weights: A system of weight connected by the string passing over pulleys A and B is shown in figure given below. Find out acceleration
construction and working of michelsons interferometer
Camshaft : The camshaft controls the opening and closing of the two valves. The associated parts are push rods, rocker arms and valve springs. The camshaft is driven by a camchai
When doescortiles componant of acceleration occurs
what is meant by thermal sress in tapered sections
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