Density of high density polythene is about __________ gm/c.c ?
Density of high density polythene is about __________ gm/c.c ?
A. 1.18
B. 1.05
C. 0.95
D. 0.99
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Thermocol (expanded polystyrene) is not used for __________________?
Thermocol (expanded polystyrene) is not used for __________________?A. Low temperature thermal insulation as in refrigerator and air conditioners
B. Acoustic control and ceiling for building
C. High temperature thermal insulation in furnaces
D. Packing of delicate electronic gadgets_____________ is a thermosetting plastic ?
_____________ is a thermosetting plastic ?A. PVC
B. Polythene
C. Bakelite
D. PolystyreneStyrene butadiene rubber (SBR) as compared to natural rubber has_______________?
Styrene butadiene rubber (SBR) as compared to natural rubber has_______________?A. Poor tensile strength
B. Poorer resistance
C. Greater amount of heat build up heavy loading
D. All A., B. and C.Flexible plastic pipes are made of___________________?
Flexible plastic pipes are made of___________________?A. High density polyethylene (HDPE)
B. Low density polyethylene (LDPE)
C. Polypropylene
D. Unsaturated polyesterWhich of the following is a polymer of Hexamethylene diamine and adipic acid ?
Which of the following is a polymer of Hexamethylene diamine and adipic acid ?A. Nylon-6
B. Nylon-66
C. Nylon-6, 10
D. Epoxy resinThe major constituent of laminate of safety glass, which holds the broken glass, pieces in their places during accident (and thus minimises the danger from flying glass fragments) is____________________?
The major constituent of laminate of safety glass, which holds the broken glass, pieces in their places during accident (and thus minimises the danger from flying glass fragments) is____________________?A. Polyvinyl alcohol
B. Polyvinyl acetate
C. Polyvinyl butyral
D. PVC