Description : Which one of the following polymers is widely used for making bullet proof material? (1) Polyvinyl chloride (2) Polyamides (3) Polyethylene (4) Polycarbonates
Last Answer : (4) Polycarbonates Explanation: Ballistic nylon was the standard cloth used for bulletproof vests until the 1970s. In 1965, Stephanie Kwolek, a chemist at Du Pont, invented Kevlar, trademark ... terephthalamide, a liquid polymer that can be spun into aramid fiber and woven into cloth.
Description : Benzoyl chloride is not used as a catalyst in the manufacture of (A) Polystyrene (B) Polyvinyl acetate (C) Polypropylene (D) Polyvinyl chloride-co-vinyl acetate
Last Answer : (C) Polypropylene
Description : Identify the group in which all the polymers mentioned can be used to make fibres. (A) Butadiene copolymers, Polyamides, Urea-formaldehyde (B) Cellulose derivatives, Polyisoprene, Polyethylene (C) Cellulose derivatives, Polyamides, Polyurethane (D) Polypropylene, Poly vinyl chloride, Silicon
Last Answer : (B) Cellulose derivatives, Polyisoprene, Polyethylene
Description : Nylon is made up of : (1) Polyamide (2) Polyester (3) Polyethylene (4) Polypropylene
Last Answer : (1) Polyamide Explanation: Nylon is a generic designation for a family of synthetic polymers known generically as aliphatic polyamides. It is one of the most commonly used polymers.
Last Answer : Polyamide
Description : Nylon threads are made of - (1) Polyester polymer (2) Polyamide polymer (3) Polyvinyl polymer (4) Polysaccharide
Last Answer : (2) Polyamide polymer Explanation: Nylon is a generic designation for a family of synthetic polymers, more specifically aliphatic or semiaromatic polyamides. They can be melt-processed into fibers, ... . Nylon polymers have found significant commercial applications in fibers, in shapes and in films.
Description : Nylon threads are made of (1) Polyester polymer (2) Polyamide polymer (3) Polyvinyl polymer (4) Polysaccharide
Last Answer : Polyamide polymer
Description : Which polymer is widely used for making bullet proof material? -General Knowledge
Last Answer : The answer is 'Polyethylene'
Last Answer : answer:
Description : Which polymer is widely used for making bullet proof material?
Last Answer : – Polyethylene
Description : Which polymeric material is used for making bullet proof jacket?
Last Answer : KEVLAR
Last Answer : Polyethylene
Description : Thiokol is nothing but (A) Polysulphide rubber (B) Polyamide fibre (C) Engineering plastic (D) Expanded polystyrene
Last Answer : (A) Polysulphide rubber
Description : Glyptal used in the manufacture of paints & lacquers is a __________ polymer. (A) Polyamide (B) Polystyrene (C) Polyester (D) Polyacrylonitril
Last Answer : (C) Polyester
Description : The generic chemical name for the class of polymers which are commercially known as nylons is (A) Polyolefins (B) Polyamide (C) Polyacrylate (D) Polyurethane
Last Answer : (B) Polyamide
Description : The synthetic plastic used for making insulation cover in electrical wires is ________. a ) Bakelite b)melamine c)Polyvinyl Chloride d)Poly styrene
Last Answer : c)Polyvinyl Chloride
Description : In case of wet spinning of polymers, the polymer solution is forced through spinnerates into, a coagulating bath to give a filament form. Wet spinning is not used in case of the __________ fibres. (A) Viscose rayon (B) Acrylic (C) Polyvinyl acetate (D) Saturated polyeste
Last Answer : (D) Saturated polyeste
Description : In case of dry spinning of polymers, the polymer solution in a volatile solvent is forced through the spinnerates into a warm air chamber, where the solvent evaporates leaving behind the polymer in the filament ... is used for __________ fibres. (A) Polythene (B) PVC (C) Rayon (D) Polyvinyl acetate
Last Answer : (B) PVC
Description : . Polyvinyl chloride (PVC) is (A) A thermosetting material (B) A condensation polymerisation product (C) Made by employing emulsion polymerisation (D) None of these
Last Answer : (C) Made by employing emulsion polymerisation
Description : Unbreakable crockeries are made from __________ polymers. (A) Polystyrene (B) Melamine (C) Polystyrene (D) Polyurethane
Last Answer : (B) Melamine
Description : Which of the following polymers has the tendency of decomposing before melting? (A) Polystyrene (B) Nylon (C) PVC (D) None of these
Last Answer : (C) PVC
Last Answer : (D) Polyurethane
Description : Which of the following is used to make light weight, but strong plastic? (1) Nylon (2) Polythene (3) Polyvinyl Chloride (4) Methyl Methacrylate
Last Answer : (3) Polyvinyl Chloride Explanation: Polyvinyl chloride (PVC) is a common, strong but lightweight plastic that is used in making tough plastic. It is used for flexible applications such ... cables. It is the third-most widely produced synthetic plastic polymer, after polyethylene and polypropylene.
Description : The term PVC used in the plastic industry stands for - (1) polyvinyl chloride (2) polyvinyl carbonate (3) phosphor vanadium chloride (4) phosphavinyl chloride
Last Answer : (1) polyvinyl chloride Explanation: Polyvinyl chloride is the world's third-most widely produced synthetic plastic polymer, after polyethylene and polypropylene. About 40 million tones are produced per year.
Description : Write the monomer of Polyvinyl chloride.
Last Answer : Ans: Vinyl chloride.
Description : Arrange the following polymer in increasing order of their molecular forces : (a) nylon-6, 6, Buna-S, polythene. (b) nylon-6, Neoprene, polyvinyl chloride.
Last Answer : Ans. (a) Buna S < Polythene < Nylon-6, 6. (b) Neoprene < Polyvinyl Chloride < Nylon-6.
Description : Which of the following is produced when polyvinyl chloride is burned? w) Hydrogen Cyanide x) Hydrogen Chloride y) Nitrogen Oxide z) Oxygen
Last Answer : ANSWER: X -- HYDROGEN CHLORIDE
Description : Which of the following is used to make light weight, but strong plastic ? (1) Nylon (2) Polythene (3) Polyvinyl Chloride (4) Methyl Methacrylate
Last Answer : Polyvinyl Chloride
Description : Acrilan fibres used for making cloth, carpet & blankets, which is a hard, horny & high melting polymeric material is nothing but (A) Polyacrylonitrile (B) Polyamide (C) Saturated polyester (D) Alkyd resin
Last Answer : (A) Polyacrylonitrile
Description : Myeloma cells and lymphocytes can be fused by using (A) Calcium chloride (B) Ethidium bromide (C) Polyethylene glycol (D) DNA polymerase
Last Answer : Answer : C
Description : Which of the following enhances or induces fusion of protoplasts? (a) IAA and kinetin (b) IAA and gibberellins (c) Sodium chloride and potassium chloride (d) Polyethylene glycol and sodium nitrate
Last Answer : (d) Polyethylene glycol and sodium nitrate
Description : Nylon-66 is a polyamide of (A) Hexamethylene diamine and adipic acid (B) Adipic acid and methyl amine (C) Vinyl chloride and formaldehyde (D) None of these
Last Answer : (A) Hexamethylene diamine and adipic acid
Last Answer : polyvinyl Chloride Yes Large Molecular Massive Compounds Which Polymerization Reaction Through Formed Is. Polyvinyl Of chloride Signal (PVC): [- CH2-CHCl-] n
Description : Polyvinyl chloride (PVC) (A) Is produced by Polycondensation reaction (B) Uses either emulsion or suspension polymerisation methods (C) Can be made thermosetting by adding a plasticiser (D) Softening temperature is 200°C
Last Answer : (B) Uses either emulsion or suspension polymerisation methods
Description : Reactor used in the production of polyvinyl chloride (PVC) is made of (A) Nickel or glass lined steel (B) Aluminium (C) Tantalum (D) Lead
Last Answer : (A) Nickel or glass lined steel
Description : The term PVC used in the plastic industry stands for-------? A. Phosphavinyl chloride B. Phosphor vanadiu chloride C. Polyvinyl chloride (Answer) D. Polyvinyl carbobate
Last Answer : C. Polyvinyl chloride (Answer)
Description : Polyvinyl chloride containers are not suitable for storing (A) Foodstuffs (B) Woolen clothes (C) Metallic powder (D) None of these
Last Answer : (A) Foodstuffs
Description : Bakelite is chemically known as (A) Polyvinyl chloride (PVC) (B) Polybutadiene (C) Phenol formaldehyde (D) Polyurethane
Last Answer : (C) Phenol formaldehyde
Description : __________ is a thermosetting plastic. (A) Polyvinyl chloride (B) Polythene (C) Bakelite (D) Teflon
Last Answer : (C) Bakelite
Description : Pick up the non-inflammable plastic from the following: (A) Cellulose acetate plastics (B) Polyvinyl chloride plastics (C) Phenol formaldehyde plastic (D) Urea formaldehyde plastic
Last Answer : Answer: Option B
Description : PVC stands for (a) polyvinyl chloride (b) post varnish conductor (c) pressed and varnished cloth (d) positive voltage conductor (e) none of the above
Last Answer : (a) polyvinyl chloride
Description : Why would anyone think it's a good idea to "test" a bullet-proof vest when they're actually wearing a flak jacket?
Last Answer : And once again, the process of natural selection shows its primacy. Stupid people do stupid things.
Description : David Neeleman (Jet Blue), Steve Jobs (Apple), George Zimmer (Men’s Wearhouse), Andrew Mason (Groupon), and Dov Charney (American Apparel) were founders and CEOs forced out of the companies they founded, how could they have made themselves ”bullet proof”?
Last Answer : Don’t sell stock in your company and don’t borrow money.
Description : Why is there not a bustling market for bullet proof vests for the civilian market?
Last Answer : Because beyond all that, Yankees , feel they live in the best safest country in the world and all that bad stuff happens to someone else it will never happen to me,type thing .
Description : Sales of bullet proof backpacks for children sky rocket. How does that make you feel?
Last Answer : Very sad.
Description : How would you feel about sending your child to school with a bullet-proof backpack?
Last Answer : If there was good reason to send my child with a bullet-proof backpack, my child would not be going to school.
Description : Do you think the White House's windows are bullet-proof?
Last Answer : Yes, I think so.
Description : Which glass is used in bullet proof screens?
Last Answer : Reinforced glass
Description : Bullet proof glass is made of thick glass sheet sandwiched by a layer of (A) Steel (B) Stainless steel (C) High test plastic (D) Chromium plate
Last Answer : Answer: Option C