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You Are On Multi Choice Question Bank SET 467

23351. Ion exchange resins are made of





23352. Rayon is superior to cotton in making gauge for wound treatment, because rayon





23353. A three phase 50 Hz induction motor has 8 poles and full load slip is 2.5% find rotor speed





23354. __________ is a natural fibre.





23355. Salient pole type rotor construction is usually provided in alternators used in





23356. Perspex can be used as a substitute of glass. Its monomer is





23357. Addition polymerisation is not involved in the manufacture of





23358. Temperature and gage pressure maintained during the manufacture of cold SBR (styrene butadiene rubber) are





23359. Most of the plastics are safe to be used upto a maximum temperature of __________ °C.





23360. __________ is a homopolymer.





23361. Plastic tubes & pipes are generally made by __________ moulding.





23362. Flow from a reciprocating pump will be





23363. Condensation polymerisation is not involved in the manufacture of





23364. Glyptal used in the manufacture of paints & lacquers is a __________ polymer.





23365. Addition of stabiliser during PVC manufacture is done to





23366. Which of the following is not a polyolefin ?





23367. Flexible foam (for mattresses) are usually made of





23368. __________ fibres are made of polyamides.





23369. In practive earth is chosen as a place of zero potential because





23370. Temperature maintained in the emulsion polymerisation reactor for PVC manufacture is about __________ ° C.





23371. Which of the following is stretched into fibres ?





23372. Antioxidants are added to rubber to protect it from the attack of light, heat & atmospheric ozone. Which of the following is an antioxident used in rubber ?





23373. Maximum consumption of polymers is in





23374. Low density polythene as compared to high density polythene is





23375. Any charge given to the battery when taken off the vehicle is called





23376. Polymethyl methacrylate, which is an acrylic resin, is also called





23377. Condensation polymerisation of formaldehyde with __________ does not produce phenolic resin.





23378. What is the metal used to prevent the burning of the make and brake point of thermostal in an electric iron?





23379. Neoprene is rendered non-inflammable, because of





23380. Low pressure Zeigler process for the manufacture of polythene uses a catalyst which is





23381. Phosphates (e.g., triceresyl, tributyl, tetrabutyl, tripheyl etc.) are added to polymers to act as





23382. __________ polymer is produced by the copolymerisation of vinyl chloride-vinyl acetate.





23383. Which of the following is a natural polyamide fibre.





23384. __________ is a copolymer.





23385. Polycaprolactum is nothing but





23386. Maxwell-Wein bridge is used for measuring





23387. Cellulose acetate has very high film permeability among all the polymers of the order of 5000 gm/100 m2. Which of the following polymers has the maximum film elongation (of the order of 100%) ?





23388. Viscosity of a polymer solution or melt





23389. Which of the following is not a polymer of two monomers ?





23390. β - glucose is the monomer of





23391. Which of the following polymers shows the highest anti-tacking properties ?





23392. Buna-N is also called





23393. Polypropylene is preferred to polythene, because the former is





23394. Nylon-6 as compared to nylon-66 is





23395. Alkyd resin is a/an





23396. Most commonly used rubber vulcanisation agent is





23397. Which of the following is not the commercial name of polymethylmethacrylate (PMMA) ?





23398. Density of low density polythene is about __________ gm/c.c.





23399. In step growth polymerisation, condensation occurs in a stepwise manner with or without the elimination of smaller molecules. An example of step growth polymerisation product is





23400. Gutta parcha rubber is





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