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A plastic bucket is manufactured by

  • A.Compression moulding
  • B.Injection moulding
  • C.Extrusion
  • D.Blow moulding

Answer: B

A plastic bucket is made by injection moulding.

A bucket is an open, thick-walled article with a defined shape, a rim and often moulded lugs for the handle. Injection moulding forces molten thermoplastic (usually polypropylene or polyethylene) into a closed mould, which reproduces such detail precisely in a short cycle, ideal for mass production.

Blow moulding makes hollow articles with narrow necks such as bottles. Extrusion makes continuous profiles such as pipes and sheet. Compression moulding is used mainly for thermosets and is too slow for buckets.

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