Which of the following fibres catches fire least ? (1) Nylon (2) Cotton (3) Rayon (4) Terricot

Which of the following fibres catches fire least ? (1) Nylon (2) Cotton (3) Rayon (4) Terricot
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Answer :

Cotton
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Related questions

Which of the following fibres catches fire least? (1) Nylon (2) Cotton (3) Rayon (4) Terricot

Description : Which of the following fibres catches fire least? (1) Nylon (2) Cotton (3) Rayon (4) Terricot

Last Answer : (2) Cotton Explanation: The fibre least prone to catch fire is cotton. Fabrics with more of the fiber surface area exposed to air have more oxygen available to support, burning and therefore burn more easily. Thus, thin, gauzy fabrics, lace, or brushed fabrics can be very flammable.

__________ fibres are made of polyamides. (A) Dacron (B) Nylon (C) Rayon (D) Orion

Description : __________ fibres are made of polyamides. (A) Dacron (B) Nylon (C) Rayon (D) Orion

Last Answer : (B) Nylon

Pick out the wrong statement. (A) Denier is defined as weight in gm of 9000 metres length of a fibre, while tex is defined as weight in gm of 1000 metres length of fibre (B) Crimp is a measure of the difference between the length of the straightened and unstraightened fibre (C) Dacron fibres, acrylic fibres, viscose rayon fibres & cellulose acetate fibres are all prepared by wet spinning (D) Nylon fibres have greater water absorption capacity than polyester fibres

Description : Pick out the wrong statement. (A) Denier is defined as weight in gm of 9000 metres length of a fibre, while tex is defined as weight in gm of 1000 metres length of fibre (B) ... fibres are all prepared by wet spinning (D) Nylon fibres have greater water absorption capacity than polyester fibres

Last Answer : (C) Dacron fibres, acrylic fibres, viscose rayon fibres & cellulose acetate fibres are all prepared by wet spinning

Which of the following statements is false about cellulose? (a) It is a polymer of glucose molecules joined in β-1,4 linkages. (b) It is a major component of cotton. (c) It is used in the manufacture of Dacron fibres. (d) It is used in the manufacture of Rayon fibres

Description : Which of the following statements is false about cellulose? (a) It is a polymer of glucose molecules joined in β-1,4 linkages. (b) It is a major component of cotton. (c) It is used in the manufacture of Dacron fibres. (d) It is used in the manufacture of Rayon fibres

Last Answer : It is used in the manufacture of Dacron fibres.

Which synthetic fibre is known as artificial Silk? A. Nylon B. Rayon (Answer) C. Cotton D. Terylene

Description : Which synthetic fibre is known as artificial Silk? A. Nylon B. Rayon (Answer) C. Cotton D. Terylene

Last Answer : B. Rayon (Answer)

For the first time, scientists have developed which fabric from the flax plant? a. Cotton b. Rayon c. Nylon d. Linen

Description : For the first time, scientists have developed which fabric from the flax plant? a. Cotton b. Rayon c. Nylon d. Linen

Last Answer : d. Linen

The fiber least prone to catch fire is (1) nylon (2) polyester (3) cotton (4) terylene

Description : The fiber least prone to catch fire is (1) nylon (2) polyester (3) cotton (4) terylene

Last Answer : cotton

Retting is used in the processing of which of the following fibres: a. Cotton b. Linen c. Silk d. Viscose rayon

Description : Retting is used in the processing of which of the following fibres: a. Cotton b. Linen c. Silk d. Viscose rayon

Last Answer : b. Linen

The substance that is least prone to catch and spread fire is (a) nylon (b) terycot (c) cotton (d) polyester

Description : The substance that is least prone to catch and spread fire is (a) nylon (b) terycot (c) cotton (d) polyester

Last Answer : Ans:(c)

In bag filters, filter fabrics are never made of (A) Metallic wire woven mesh (B) Polyester fibres (C) Cotton fibres (D) Nylon fibres

Description : In bag filters, filter fabrics are never made of (A) Metallic wire woven mesh (B) Polyester fibres (C) Cotton fibres (D) Nylon fibres

Last Answer : (A) Metallic wire woven mesh

The chief raw material used for manufacturing Rayon is : (1) Nylon (2) Cellulose (3) Silicon (4) Radium and Argon

Description : The chief raw material used for manufacturing Rayon is : (1) Nylon (2) Cellulose (3) Silicon (4) Radium and Argon

Last Answer : (2) Cellulose Explanation: Rayon is a manufactured regenerated cellulose fiber. Because it is produced from naturally occurring polymers, it is neither a truly synthetic fiber nor a natural fiber; it is a semi-synthetic or artificial fiber.

The first synthetic fibre made by man was- (1) Rayon (2) Nylon (3) Polyester (4) Terycott

Description : The first synthetic fibre made by man was- (1) Rayon (2) Nylon (3) Polyester (4) Terycott

Last Answer : (2) Nylon Explanation: Nylon, the first synthetic fiber in the "fully synthetic" sense of that term, was developed by Wallace Carothers, an American researcher at the chemical firm DuPont in the 1930s.

Polycaprolactam is (A) Nylon-6 (B) Nylon-66 (C) Dacron (D) Rayon

Description : Polycaprolactam is (A) Nylon-6 (B) Nylon-66 (C) Dacron (D) Rayon

Last Answer : (A) Nylon-6

The substance used in the production of nylon; rayon; explosives; fertilizers and dyes?

Description : The substance used in the production of nylon; rayon; explosives; fertilizers and dyes?

Last Answer : Ammonia

Polycaprolactam is commercially known as (A) Nylon-6 (B) Nylon-66 (C) Dacron (D) Rayon

Description : Polycaprolactam is commercially known as (A) Nylon-6 (B) Nylon-66 (C) Dacron (D) Rayon

Last Answer : (A) Nylon-6

The chief raw material used for manufacturing Rayon is : (1) Nylon (2) Cellulose (3) Silicon (4) Radium and Argon

Description : The chief raw material used for manufacturing Rayon is : (1) Nylon (2) Cellulose (3) Silicon (4) Radium and Argon

Last Answer : Cellulose

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

The synthetic fibres produced from __________ are known as rayon. (A) Lignin (B) Cellulose (C) Polyamides (D) Ethylene glyco

Description : The synthetic fibres produced from __________ are known as rayon. (A) Lignin (B) Cellulose (C) Polyamides (D) Ethylene glyco

Last Answer : (B) Cellulose

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

A polymeric substance used to make parachute is – (1) Rayon (2) Viscose (3) Cotton (4) Terylene

Description : A polymeric substance used to make parachute is – (1) Rayon (2) Viscose (3) Cotton (4) Terylene

Last Answer : (2) Viscose Explanation: Viscose is a viscous organic liquid used to make rayon and cellophane. Viscose is also used as shorthand for Viscose Rayon, thus becoming synonymous with rayon, a soft man-made fibre commonly used in dresses, linings shirts, shorts, coats, jackets, and other outer wear.

Which of the following products is not derived from cellulose? (a) Rayon (d) Paper(b) Insulin (c) Gun cotton

Description : Which of the following products is not derived from cellulose? (a) Rayon (b) Insulin (c) Gun cotton (d) Paper

Last Answer : Insulin

A polymeric substance used to make parachute is (1) Rayon (2) Viscose (3) Cotton (4) Terylene

Description : A polymeric substance used to make parachute is (1) Rayon (2) Viscose (3) Cotton (4) Terylene

Last Answer : Viscose

Which of the following is not a natural fibre? (A) Silk (B) Viscose rayon (C) Wool (D) Cotton

Description : Which of the following is not a natural fibre? (A) Silk (B) Viscose rayon (C) Wool (D) Cotton

Last Answer : (B) Viscose rayon

Rayon is superior to cotton in making gauge for wound treatment, because rayon (A) Is a synthetic polymer (B) Does not stick to the wound unlike cotton (C) Can absorb over 90% of its own weight of water (D) Both (B) and (C)

Description : Rayon is superior to cotton in making gauge for wound treatment, because rayon (A) Is a synthetic polymer (B) Does not stick to the wound unlike cotton (C) Can absorb over 90% of its own weight of water (D) Both (B) and (C)

Last Answer : (B) Does not stick to the wound unlike cotton

The purest natural form of cellulose is _______. a) rayon b)cotton c)wool d)silk

Description : The purest natural form of cellulose is _______. a) rayon b)cotton c)wool d)silk

Last Answer : b)cotton

Example of natural plant fibre: a. Silk b. Cotton c. Viscose rayon d. Polyester

Description : Example of natural plant fibre: a. Silk b. Cotton c. Viscose rayon d. Polyester

Last Answer : b. Cotton

Melt spinning of polymers involves the forcing of polymer melt through spinnerates (fine holes) into an atmosphere kept at a temperature lower than the melting point of the polymer, which causes the fine diameter polymer melt to harden into filaments. Melt spinning is not used in case of the __________ fibres. (A) Acrylic (B) Polyester (C) Nylon 6:6 (D) Polypropylene

Description : Melt spinning of polymers involves the forcing of polymer melt through spinnerates (fine holes) into an atmosphere kept at a temperature lower than the melting point of the polymer, which causes the fine diameter ... the __________ fibres. (A) Acrylic (B) Polyester (C) Nylon 6:6 (D) Polypropylene

Last Answer : (A) Acrylic

Dacron (or Treylene) fibres as compared to nylon fibres have (A) Better heat & acid resistant properties (B) Poorer resistance to alkalis (C) Poorer dyeability (D) All (A), (B) and (C)

Description : Dacron (or Treylene) fibres as compared to nylon fibres have (A) Better heat & acid resistant properties (B) Poorer resistance to alkalis (C) Poorer dyeability (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Dacron (or Terylene) fibres as compared to nylon fibres have (A) Better heat & acid resistant properties (B) Poorer resistance to alkalis (C) Poorer dyeability (D) All (A), (B) and (C)

Description : Dacron (or Terylene) fibres as compared to nylon fibres have (A) Better heat & acid resistant properties (B) Poorer resistance to alkalis (C) Poorer dyeability (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Which class of material would you classify Nylon a) Fibres b) Polymer c) Ceramics d) Glass

Description : Which class of material would you classify Nylon a) Fibres b) Polymer c) Ceramics d) Glass

Last Answer : b) Polymer

What should you do if petrol catches fire?

Description : What should you do if petrol catches fire?

Last Answer : If petrol catches fire, you should immediately evacuate the area and call the emergency services.

Did you know that we are all doomed when the earth catches fire today?

Description : Did you know that we are all doomed when the earth catches fire today?

Last Answer : I can help these people. We all know that it is as easy for a rich person to get into heaven as it is for a camel to pass through the eye of a needle. I can relieve these people of all ... of salvation, but I can take on the burden of the excess of wealth of others to assure their eternal bliss.

Hypothetical: You sleep naked. Weather outside is 30 degrees. House catches fire and bedroom is threatened. You need to get out.

Description : Hypothetical: You sleep naked. Weather outside is 30 degrees. House catches fire and bedroom is threatened. You need to get out.

Last Answer : Nothing on. Who would even judge me? Nobody.

If the toaster catches on fire, is it still safe to eat the food that was toasting?

Description : If the toaster catches on fire, is it still safe to eat the food that was toasting?

Last Answer : Yes. But quickly.

Which chemical catches fire easily ?

Description : Which chemical catches fire easily ?

Last Answer : Chemically combustible substances.

Lithium floats an water while sodium floats and catches fire when put in water.

Description : Lithium floats an water while sodium floats and catches fire when put in water.

Last Answer : Explain : Lithium floats an water while sodium floats and catches fire when put in water.

What chemical that catches on fire and burns readily?

Description : What chemical that catches on fire and burns readily?

Last Answer : Need answer

What chemical catches on fire easily and burns readily?

Description : What chemical catches on fire easily and burns readily?

Last Answer : Need answer

Pick out the wrong statement. (A) LPG is also used as fuel for automobiles & small furnaces and for cutting & welding of metals (B) The minimum temperature, at which a petroleum oil vapor catches fire and continues to burn, is called its flash point (C) Each ton of petroleum oil on distillation produces about 30-50 Nm3 of gas (D) Maximum yield of naphthalene is obtained on distillation of crude oil

Description : Pick out the wrong statement. (A) LPG is also used as fuel for automobiles & small furnaces and for cutting & welding of metals (B) The minimum temperature, at which a petroleum oil vapor catches ... about 30-50 Nm3 of gas (D) Maximum yield of naphthalene is obtained on distillation of crude oil

Last Answer : (B) The minimum temperature, at which a petroleum oil vapor catches fire and continues to burn, is called its flash point

The lowest temperature which at which a substance catches fire is ________ temperature. a) ignition b)boiling c)freezing d)none

Description : The lowest temperature which at which a substance catches fire is ________ temperature. a) ignition b)boiling c)freezing d)none

Last Answer : a) ignition

The material which on heating in presence of oxygen catches fire easily and produces heat and light energy is known as _________ material. a) combustible b)non-combustible c)conducting d)none

Description : The material which on heating in presence of oxygen catches fire easily and produces heat and light energy is known as _________ material. a) combustible b)non-combustible c)conducting d)none

Last Answer : a) combustible

Which of the following non-metal reacts and catches fire on exposure to air? a) phosphorous b)nitrogen c)sulphur d)hydrogen

Description : Which of the following non-metal reacts and catches fire on exposure to air? a) phosphorous b)nitrogen c)sulphur d)hydrogen

Last Answer : a) phosphorous

Golden Fibre refers to [CDS 2009] (a) Hemp (b) Cotton (c) Jute (d) Nylon

Description : Golden Fibre refers to [CDS 2009] (a) Hemp (b) Cotton (c) Jute (d) Nylon

Last Answer : Ans: (c)

Which of the following is not used as a filter medium in case of corrosive liquids? (A) Nylon (B) Glass cloth (C) Metal cloth of monel or stainless steel (D) Cotton fabric

Description : Which of the following is not used as a filter medium in case of corrosive liquids? (A) Nylon (B) Glass cloth (C) Metal cloth of monel or stainless steel (D) Cotton fabric

Last Answer : (D) Cotton fabric

Which of the following is largely used in textile industries in India? (1) Cotton (2) Wool (3) Synthetic fibres (4) Jute

Description : Which of the following is largely used in textile industries in India? (1) Cotton (2) Wool (3) Synthetic fibres (4) Jute

Last Answer : (1) Cotton Explanation: Cotton is a soft, fluffy staple fiber that grows in a boll, or protective capsule, around the seeds of cotton plants of the genus Gossypium which is most often spun ... is used in fishing nets, coffee filters, tents, explosives manufacture, cotton paper, and in bookbinding.

Which of the following fibres is considered as the stron est natural fibre? (1) Cotton (2) Jute (3) Wool (4) Silk

Description : Which of the following fibres is considered as the stron est natural fibre? (1) Cotton (2) Jute (3) Wool (4) Silk

Last Answer : (4) Silk Explanation: Ultrastrong spider silk is one of the toughest natural fibers known in nature. The light, flexible fiber is five times stronger by weight than high-grade steel and extremely stretchy, enlarging to snag incoming insects and other prey.

Which fiber is chemcially identical to cotton fibres?

Description : Which fiber is chemcially identical to cotton fibres?

Last Answer : Rayon

Which of the following fibres is considered as the strongest natural fibre? (1) Cotton (2) Jute (3) Wool (4) Silk

Description : Which of the following fibres is considered as the strongest natural fibre? (1) Cotton (2) Jute (3) Wool (4) Silk

Last Answer : Silk

Which of the following is not a polymer? w) rayon x) Teflon y) rubber z) penicillin

Description : Which of the following is not a polymer? w) rayon x) Teflon y) rubber z) penicillin

Last Answer : ANSWER: Z -- PENICILLIN

Bending stress will be least at the extreme fibres for (a) Maximum area of cross section (b) Maximum moment of inertia (c) Maximum section modulus (d) None

Description : Bending stress will be least at the extreme fibres for (a) Maximum area of cross section (b) Maximum moment of inertia (c) Maximum section modulus (d) None

Last Answer : (c) Maximum section modulus