Mechanical Engineering :: Workshop Technology
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The vertical welding do not require plate edge preparation upto 16 mm thickness.
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In arc welding, the temperature of heat produced by the electric arc is of the order of
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Extrusion
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The operation of cutting of a flat sheet to the desired shape is called
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The process of decreasing the cross-section of a bar and increasing its length, is called
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A casting defect which occurs due to improper venting of sand is known as
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Swab is used for
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The temperature of the inner luminous cone of neutral flame is about
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The metal patterns as compared to wooden patterns require less
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A.
is extensively used for making bolts and nuts
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B.
is used for reducing the diameter of round bars and tubes by rotating dies which open and close rapidly on the work
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C.
is used to improve fatigue resistance of the metal by setting up compressive stresses in its surface
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D.
consists of pressing the metal inside a chamber to force it out by high pressure through an orifice which is shaped to provide the desired form of the finished part
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