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TRADESMAN---POLYMER-TECHNOLOGY---TECHNICAL-EDUCATION Related Question Answers
2. The name of process of controlled wounding on rubber tree tor extraction of latex is :
Picking Sheeting Cutting Tapping
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3. The grade of rubber sheet which is used mainly for tyre manufacturing is :
l ot Off grade RSS -1 RSS - 4
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4. The name of plastic which is used for mineral water and carbonized beverage bottles :
Polythene Poly propelene PET PVC
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8. Rain gardening is used in rubber tree for _________
Tapping in rainy season Growing in rainy season Organic farming in rainyseason Protect sheet rubber fromrain
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9. What type of printing in plastic are used for multy colour photo graphic design pictures in branded multi layer plastic sheet packets ?
Screen printing Graviour Flexographic printing None of these
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10. What is the scientific name of rubber yielding trees mostly cultivated inKerala ?
Castilla elastic Partheniumargentaltum Hevea brazeeliensis Gagulee
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14. ___________is the acid usually used to coagulating skim rubber.
Formic acid Sulphuric add Acetic acid Hydrochloric acid
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19. _____________is the chemical name of Natural Rubber.
Trans 1, 4 Polyisoprene Cis 1,4 Polyisoprene Polyisobutylene Polychloroprene
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20. Among the following_______________is the technically specified rubber.
Sheet Rubber Creep Rubber Crump Rubber Cup Lump
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21. DRC of normal latex is generally in the range of______%.
1.5-10 2018-10-15 00:00:00 60-65 30-35
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24. Among the following, select the component of a tyre where steel wire is usually seen :
Tread Side wall Bead Inner liner
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25. What is the full form of PVC ?
Poly Vinyl Chloride Poly Yinyl Acetate Poly Vinvlene Chloride Poly Vinyl .Alcohol
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