18:58 Jan 14, 2008 |
English language (monolingual) [PRO] Tech/Engineering - Metallurgy / Casting / Welding | |||||||
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| Selected response from: NancyLynn Canada Local time: 00:16 | ||||||
Grading comment
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SUMMARY OF ALL EXPLANATIONS PROVIDED | ||||
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3 +7 | if the tungsten is oxidised or contaminated or doesn't have proper tip geometry |
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4 +3 | if these conditions "are not met" |
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see phrase if the tungsten is oxidised or contaminated or doesn't have proper tip geometry Explanation: I think the writer either didn't know how to put it properly, or was just lazy or sloppy. the conditions mentioned refer to the undesirable conditions, that is, dirt, contimatination, improper tip geomtery, etc. |
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Grading comment
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