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Which colour is given to the cast surfaces which are to be left not-machined?(a) Red(b) Blue(c) Black(d) Yellow |
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Answer» Right option is (c) Black The explanation: Provision of colour scheme makes it easy for one to detect the part and the operation to be performed on it. According to the American pattern colour scheme, black colour is to be given for cast surface left to be not-machined. |
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