Which one of the following polymers is widely used for making bullet proof material? (1) Polyvinyl chloride (2) Polyamides (3) Polyethylene (4) Polycarbonates

Which one of the following polymers is widely used for making bullet proof material? (1) Polyvinyl chloride (2) Polyamides (3) Polyethylene (4) Polycarbonates
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(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 for poly-paraphenylene terephthalamide, a liquid polymer that can be spun into aramid fiber and woven into cloth.
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Which one among the following polymers is used for making bullet-proof material? (1) Polyvinyl chloride (2) Polystyrene (3) Polyethylene (4) Polyamide

Description : Which one among the following polymers is used for making bullet-proof material? (1) Polyvinyl chloride (2) Polystyrene (3) Polyethylene (4) Polyamide

Last Answer : (3) Polyethylene Explanation: A bullet-proof material is made of polyethylene. It is a higher grade of the plastic found in Tupperware.

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

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

Which polymer is widely used for making bullet proof material? -General Knowledge

Description : Which polymer is widely used for making bullet proof material? -General Knowledge

Last Answer : The answer is 'Polyethylene'

Which polymer is widely used for making bullet proof material? -General Knowledge

Description : Which polymer is widely used for making bullet proof material? -General Knowledge

Last Answer : answer:

Which polymer is widely used for making bullet proof material?

Description : Which polymer is widely used for making bullet proof material?

Last Answer : – Polyethylene

Which polymer is widely used for making bullet proof material?

Description : Which polymer is widely used for making bullet proof material?

Last Answer : Polyethylene

Proteins are (a) polyamides (b) Polymers of ethylene (c) α-Aminocarboxylic acids (d) Polymers of propylene

Description : Proteins are (a) polyamides (b) Polymers of ethylene (c) α-Aminocarboxylic acids (d) Polymers of propylene

Last Answer : polyamides

Which polymeric material is used for making bullet proof jacket?

Description : Which polymeric material is used for making bullet proof jacket?

Last Answer : KEVLAR

A chain growth polymerisation reaction consists of three different types of reaction namely initiation reaction, propagation reaction & termination reaction. Chain growth polymerisation reaction is not involved in the manufacture of (A) Siloxane elastomers (B) Polyamides (C) Vinyl polymers (D) Urea-formaldehyde resins

Description : A chain growth polymerisation reaction consists of three different types of reaction namely initiation reaction, propagation reaction & termination reaction. Chain growth polymerisation reaction is not involved ... Siloxane elastomers (B) Polyamides (C) Vinyl polymers (D) Urea-formaldehyde resins

Last Answer : (D) Urea-formaldehyde resins

The synthetic plastic used for making insulation cover in electrical wires is ________. a ) Bakelite b)melamine c)Polyvinyl Chloride d)Poly styrene

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

Plexiglass (also called Lucite) because of its high optical transparency is used for making lenses. It is chemically (A) Polymethyl methacrylate (PMMA) (B) Polytetrafluroethylene (PTFE) (C) Polycarbonates (D) Phenolic resins

Description : Plexiglass (also called Lucite) because of its high optical transparency is used for making lenses. It is chemically (A) Polymethyl methacrylate (PMMA) (B) Polytetrafluroethylene (PTFE) (C) Polycarbonates (D) Phenolic resins

Last Answer : (A) Polymethyl methacrylate (PMMA)

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

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

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 form. Dry spinning is used for __________ fibres. (A) Polythene (B) PVC (C) Rayon (D) Polyvinyl acetate

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

. Polyvinyl chloride (PVC) is (A) A thermosetting material (B) A condensation polymerisation product (C) Made by employing emulsion polymerisation (D) None of these

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

. Polyvinyl chloride (PVC) is (A) A thermosetting material (B) A condensation polymerisation product (C) Made by employing emulsion polymerisation (D) None of these

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

Which of the following is used to make light weight, but strong plastic? (1) Nylon (2) Polythene (3) Polyvinyl Chloride (4) Methyl Methacrylate

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.

The term PVC used in the plastic industry stands for - (1) polyvinyl chloride (2) polyvinyl carbonate (3) phosphor vanadium chloride (4) phosphavinyl chloride

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.

Write the monomer of Polyvinyl chloride.

Description : Write the monomer of Polyvinyl chloride.

Last Answer : Ans: Vinyl chloride. 

Arrange the following polymer in increasing order of their molecular forces : (a) nylon-6, 6, Buna-S, polythene. (b) nylon-6, Neoprene, polyvinyl 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.

Which of the following is produced when polyvinyl chloride is burned? w) Hydrogen Cyanide x) Hydrogen Chloride y) Nitrogen Oxide z) Oxygen

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 

Which of the following is used to make light weight, but strong plastic ? (1) Nylon (2) Polythene (3) Polyvinyl Chloride (4) Methyl Methacrylate

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

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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

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

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

(3) prevents freezing of petrol Explanation: Ethylene glycol (IUPAC name: ethane-1,2-diol) is an organic compound widely used as an automotive antifreeze and a precursor to polymers. In its pure form, it is an odorless, colourless, syrupy, sweettasting liquid. Ethylene glycol is toxic, and ingestion can result in death. Due to its low freezing point ethylene glycol resists freezing. A mixture of 60% ethylene glycol and 40% water freezes at -45 degree C (- 49 degree F).

Description : (3) prevents freezing of petrol Explanation: Ethylene glycol (IUPAC name: ethane-1,2-diol) is an organic compound widely used as an automotive antifreeze and a precursor to polymers. In its pure form, it is ... A mixture of 60% ethylene glycol and 40% water freezes at -45 degree C (- 49 degree F).

Last Answer : Rust is - (1) A mixture of Fe₂O₃ and Fe(OH) ₂ (2) A mixture of FeO and Fe(OH)₂ (3) FeO only (4) A mixture of Fe₂O₃, 3H₂O and FeO

Polyvinyl Chloride What ?

Last Answer : polyvinyl Chloride Yes Large Molecular Massive Compounds Which Polymerization Reaction Through Formed Is. Polyvinyl Of chloride Signal (PVC): [- CH2-CHCl-] n

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

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

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

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

Reactor used in the production of polyvinyl chloride (PVC) is made of (A) Nickel or glass lined steel (B) Aluminium (C) Tantalum (D) Lead

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

The term PVC used in the plastic industry stands for-------? A. Phosphavinyl chloride B. Phosphor vanadiu chloride C. Polyvinyl chloride (Answer) D. Polyvinyl carbobate

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)

Polyvinyl chloride containers are not suitable for storing (A) Foodstuffs (B) Woolen clothes (C) Metallic powder (D) None of these

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

Bakelite is chemically known as (A) Polyvinyl chloride (PVC) (B) Polybutadiene (C) Phenol formaldehyde (D) Polyurethane

Description : Bakelite is chemically known as (A) Polyvinyl chloride (PVC) (B) Polybutadiene (C) Phenol formaldehyde (D) Polyurethane

Last Answer : (C) Phenol formaldehyde

__________ is a thermosetting plastic. (A) Polyvinyl chloride (B) Polythene (C) Bakelite (D) Teflon

Description : __________ is a thermosetting plastic. (A) Polyvinyl chloride (B) Polythene (C) Bakelite (D) Teflon

Last Answer : (C) Bakelite

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

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

PVC stands for (a) polyvinyl chloride (b) post varnish conductor (c) pressed and varnished cloth (d) positive voltage conductor (e) none of the above

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

Why would anyone think it's a good idea to "test" a bullet-proof vest when they're actually wearing a flak jacket?

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.

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”?

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.

Why is there not a bustling market for bullet proof vests for the civilian market?

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 .

Sales of bullet proof backpacks for children sky rocket. How does that make you feel?

Description : Sales of bullet proof backpacks for children sky rocket. How does that make you feel?

Last Answer : Very sad.

How would you feel about sending your child to school with a bullet-proof backpack?

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.

Do you think the White House's windows are bullet-proof?

Description : Do you think the White House's windows are bullet-proof?

Last Answer : Yes, I think so.

Which glass is used in bullet proof screens?

Description : Which glass is used in bullet proof screens?

Last Answer : Reinforced glass

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

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

Polyvinyl acetate is never used for making (A) Moulded articles (B) Fibres (C) Adhesives

Description : Polyvinyl acetate is never used for making (A) Moulded articles (B) Fibres (C) Adhesives

Last Answer : (A) Moulded articles

Which impression material should NOT be kept in water within on hour: (in another paper it was: 30 mins before pouring) A. Polyether B. Condensation silicone C. Polyvinyl silicone

Description : Which impression material should NOT be kept in water within on hour: (in another paper it was: 30  mins before pouring)  A. Polyether  B. Condensation silicone  C. Polyvinyl silicone 

Last Answer : A. Polyether 

Write one application for the give dielectric material. (i) Polyvinyl Carbide(PVC) (ii) Glass (iii) Mica (iv) Cotton and Silk

Description : Write one application for the give dielectric material. (i) Polyvinyl Carbide(PVC) (ii) Glass (iii) Mica (iv) Cotton and Silk

Last Answer : (i) Polyvinyl Carbide(PVC):it is used in insulation of wires and cables in domestic wiring as well as in aircraft and factory wiring (any one)  (ii) Glass: 1) Alkaline glasses are used for ... with wax or varnishes are used in windings of magnet coils and small medium sized mechanics (any one) 

Nylon is made up of : (1) Polyamide (2) Polyester (3) Polyethylene (4) Polypropylene

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.

Which of the following is a thermosetting polymer? (a) Bakelite (b) Nylon-6,6 (c) Polyethylene (d) Teflon

Description : Which of the following is a thermosetting polymer? (a) Bakelite (b) Nylon-6,6 (c) Polyethylene (d) Teflon

Last Answer : Bakelite

What is the collective term used to describe substances such as Orlon, Nylon, polyethylene, and polyurethane foam?

Description : What is the collective term used to describe substances such as Orlon, Nylon, polyethylene, and polyurethane foam?

Last Answer : ANSWER: POLYMER

Nylon is made up of : (1) Polyamide (2) Polyester (3) Polyethylene (4) Polypropylene

Description : Nylon is made up of : (1) Polyamide (2) Polyester (3) Polyethylene (4) Polypropylene

Last Answer : Polyamide

Vycor, a widely used material for making 'thermal wells' in temperature measurement, is a (A) Cermet (B) Glass (C) Thermosetting plastic (D) Metallic alloy

Description : Vycor, a widely used material for making 'thermal wells' in temperature measurement, is a (A) Cermet (B) Glass (C) Thermosetting plastic (D) Metallic alloy

Last Answer : (B) Glass