PG2043- II CIA Quiz - Polymer Chemistry

The process of converting bulk polymer into fibres is called ____________

• Spinning   

• Moulding 

• Calendering                      

• foaming

Polystyrene and PMMA can be moulded by ________

• Injection moulding           

• Compression moulding  

• Extrusion

  moulding           

• None

Golf balls are processed by ______________

• Die casting

• Rotational casting

• Film casting         

• Spinning

The excess material flows out of the mould is known as _______________

•       flash                

• Mould

• Resin        

• Film

Compression moulding is used for moulding thermoplastic and thermosetting plastic.

• (a) True   

• (b) False

Parison is used in _________ moulding.

• Injection           

• blow  

• Extrusion  

• Compression

Polymeric sheets are prepared by _________

• casting       

• Moulding 

• Calendering                    

•    reinforcing

The slipperiest polymer is ___________

       

• Plexiglass 

• Teflon

• PVC                      

• Rubber

Intraocular lens is made of ___________

     

• PMMA     

• Teflon  

• PVC                      

• Polypropylene

Photographic films are prepared by _________

• Die casting

• Rotational casting

• Film casting         

• Centrifugal casting