Q.1
Which of the following moulding processes is widely used for the manufacturing of plastic bottles?
  • a) Compression moulding
  • b) Injection moulding
  • c) Jet moulding
  • d) Blow moulding
Q.2
Blow moulding is a very slow process, however economical for producing products with better quality.
  • a) True
  • b) False
Q.3
In extrusion blow moulding process, it is very difficult to trim away excess of plastics.
  • a) True
  • b) False
Q.4
Single stage stretch blow moulding is always preferred than two stage stretch blow moulding for increase in production rate.
  • a) True
  • b) False
Q.5
Single stage stretch blow moulding process is mostly used for small level production.
  • a) True
  • b) False
Q.6
Thermoforming process involves injecting of molten plastic into a mould cavity by application of compressed air.
  • a) True
  • b) False
Q.7
In thermoforming process, it is very difficult to control thickness of moulded parts or sheets.
  • a) True
  • b) False
Q.8
In thermoforming, it is very easy to mould the plastic materials which are of crystalline nature.
  • a) True
  • b) False
Q.9
Thermoforming is basically a cheap process as compared to injection and blow moulding process.
  • a) True
  • b) False
Q.10
Which of the following materials is mostly used for making of thermoforming moulds?
  • a) Steel
  • b) Grey cast iron
  • c) Aluminium
  • d) White cast iron
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