Production Process Test - VI (Plastic Forming)

20 Questions | Total Attempts: 902

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Production Process Test - VI (Plastic Forming)


Questions and Answers
  • 1. 
    Which of the following material is not made by injection molding?
    • A. 

      Nuts

    • B. 

      Tubes

    • C. 

      Car handels

    • D. 

      Electrical fittings

  • 2. 
    What is the minimum temperature allowed to be given to the injection molding process?
    • A. 

      120°C

    • B. 

      130°C

    • C. 

      140°C

    • D. 

      150°C

  • 3. 
    What is the maximum temperature allowed to be given to the injection molding process?
    • A. 

      300°C

    • B. 

      320°C

    • C. 

      350°C

    • D. 

      400°C

  • 4. 
     In blow molding, to inflate soft plastic, which medium is used?
    • A. 

      Air

    • B. 

      Water

    • C. 

      Oil

    • D. 

      Alcohol

  • 5. 
    Which of the following plastics is not used in blow molding?
    • A. 

      Terepthalate

    • B. 

      Polypropylene

    • C. 

      Polythene

    • D. 

      PVC

  • 6. 
    What is the minimum air pressure required in blow molding process?
    • A. 

      350 kPa

    • B. 

      400 kPa

    • C. 

      450 kPa

    • D. 

      500 kPa

  • 7. 
    Which of the following is not a type of blow molding process?
    • A. 

      Injection blow molding

    • B. 

      Extrusion blow molding

    • C. 

      Multi-smaller blow molding

    • D. 

       Multi-larger blow molding

  • 8. 
    Which of the following is not an application of blow molding process?
    • A. 

      Toy bodies

    • B. 

      Door liners

    • C. 

      Bottles

    • D. 

      Pipes

  • 9. 
    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

  • 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

  • 11. 
    Blow moulding is a very slow process, however economical for producing products with better quality.
    • A. 

      True

    • B. 

      False

  • 12. 
    In extrusion blow moulding process, it is very difficult to trim away excess of plastics.
    • A. 

      True

    • B. 

      False

  • 13. 
    Single stage stretch blow moulding process is mostly used for small level production
    • A. 

      True

    • B. 

      False

  • 14. 
    Melting section is another name for which section?
    • A. 

      Feed section

    • B. 

       Transition section

    • C. 

      Pumping section

    • D. 

      Collapse section

  • 15. 
    How are extruded materials cooled?
    • A. 

      Water

    • B. 

      Contact with chilled surface

    • C. 

      Air

    • D. 

      Oil

  • 16. 
    Which of the following is not an important factor of cooling in extrusion?
    • A. 

      Reduction in shrinkage

    • B. 

      Reduction in distortion

    • C. 

      Ease of adding colours

    • D. 

      Rate of cooling

  • 17. 
    Which of the following is not an application of polymer extrusion?
    • A. 

      Door insulation seals

    • B. 

      Door insulation seals

    • C. 

      Cables

    • D. 

      Circuit boards

  • 18. 
    Which of the following equipment is used for controlling the temperature of polymer material in the extrusion process?
    • A. 

      Thermo resister

    • B. 

      Thermometer

    • C. 

      Thermocouple

    • D. 

      Glass tube

  • 19. 
    Tubes having U shape cannot be manufactured by polymer extrusion process.
    • A. 

      True

    • B. 

      False

  • 20. 
    In compression molding, the curing time does not depend on which of the following factors?
    • A. 

      Material

    • B. 

      Curing temperature

    • C. 

      Geometry

    • D. 

      Thickness

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