Polymer Technology Which of the following is the most important rubber compounding ingradient which is used to improve wearing qualities of both natural rubber & SBR by imparting toughness? Phosphorous Pine oil Carbon black Rosin Phosphorous Pine oil Carbon black Rosin ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Synthetic rubber Is softer at higher temperature Deforms, if stretched to double of its original dimension Is highly permeable to air & water and is readily attacked by chemicals & atmospheric gases Is brittle at low temperature Is softer at higher temperature Deforms, if stretched to double of its original dimension Is highly permeable to air & water and is readily attacked by chemicals & atmospheric gases Is brittle at low temperature ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following is generally not used as eord for synthetic rubber tyre casing? Nylon None of these Cellulose Dacron Nylon None of these Cellulose Dacron ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology __________ is produced by polymerisation of chloroprene. Thiokol (a polysulphide rubber) Neoprene Polyurathane rubber Butyl rubber Thiokol (a polysulphide rubber) Neoprene Polyurathane rubber Butyl rubber ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Condensation of bisphenol A with phosgene produces __________ which possess very good heat resistance. Polyester Polyurathane Polysulphone Polycarbonate Polyester Polyurathane Polysulphone Polycarbonate ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Temperature and gage pressure maintained during the manufacture of cold SBR (styrene butadiene rubber) are 0°C and 1 kgf/cm² 5°C and 1 kgf/cm² - 20°C and 1 kgf/cm² 0°C and 3 kgf/cm² 0°C and 1 kgf/cm² 5°C and 1 kgf/cm² - 20°C and 1 kgf/cm² 0°C and 3 kgf/cm² ANSWER DOWNLOAD EXAMIANS APP
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