Chemical Engineering :: Chemical Engineering Basics
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In electrical resistance welding, distortion results from the use of improper
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The conventional mechnical transducer, which converts pressure signal to displacement signal is
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Pick out the wrong statement.
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Austempering of steel requires.it to be heated to 875°C followed by sudden cooling to 250-525°C, thereby changing austenite to
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A compact estimate about the amount of materials handling between various work stations is obtained from the
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Lead is poured into the joint between two- __________ pipes.
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The concentration of (H+) ions is 4 x 10-5 in a solution. Then pH of the solution will be (Given log 4 = 0.6 )
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With decrease in the grain size of a material, its creep resistance
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__________ rubber is generally used for making 'O' rings used for vacuum sealings.
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A.
Seam welding, projection welding & spot welding are the classification of electrical resistance welding.
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B.
Electrode tip in spot welding is of copper and the tip diameter should be equal to t (where, t = plate thickness to be welded)
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C.
In spot welding, two pieces to be joined are overlapped and placed between two electrodes.
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D.
Mild steel sheet can not be spot welded.
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