Polymer Technology
Flexible plastic pipes are made of

High density polyethylene (HDPE)
Low density polyethylene (LDPE)
Unsaturated polyester
Polypropylene

ANSWER DOWNLOAD EXAMIANS APP

Polymer Technology
Thermocole (expanded polystyrene) is not used for

Low temperature thermal insulation as in refrigerator and air conditioners
Accoustic control and ceiling for building
High temperature thermal insulation in furnaces
Packing of delicate electronic gadgets

ANSWER DOWNLOAD EXAMIANS APP