Give four properties and its related applications of rubber  

1 Answer

Answer :

Properties of rubber
Related application 
1. Elasticity 
For preparation of rubber bands, balloons, tubes for all vehicles 
2 .High abrasion resistance
For preparation of tyres of all vehicles, shoe sols & shoe heels, conveyer belts, floor tiles ,rubber mats  
3. Shock absorbing
For preparation of sports goods, toys, helmets, goggles, for mounting heavy machines, to reduce noise & vibrations
4. Excellent Electrical insulator
For insulation of electrical wires and cables , For hand gloves of electrician
5 .High Chemical resistance 
Rubber lined tanks are used for storing corrosive chemicals rubber hoses are used for transmission of corrosive chemicals ,rubber gaskets & seals are used for sealing. 
6 .Hardness 
Rubber gaskets are used for sealing pressure cookers, refrigerators ,ovens, cabinet doors, autoclaves etc. 
7 .Excellent thermal & sound insulator
Sponge insulator in auditoriums, theaters, in different filters
8. Airproof 
For preparation of balloons, tubes, air pillows, cushions, mattresses. 
9 .Waterproof
For preparation of rain coats. 

Related questions

Description : Write two properties of glass wool and its uses related to the property.

Last Answer : Properties Uses 1.Low Thermal conductivity 1.Used as thermal insulating material in domestics & industrial appliances such as motors, ovens, refrigerators.  2.Resistant to chemicals  ... 5.Low density  5. Manufacturing fiber glass by reinforcing with plastic resins. 

Description : How is thermacole prepared? Write two uses and two properties of thermacole

Last Answer : Preparation :- Thermacole is prepared by blowing air through molten poly styrene or poly urethrane plastics Properties :-  1) It is light in weight 2) It is spongy, porous & has foam like ... for storing ice, ice creams & medicines. 7) It is used as a float for swimming. 

Description : Write four properties of plastic and their related applications.

Last Answer : Properties of Plastics -  Properties Applications Low specific gravity and high tensile strength. Air-craft, motor car, structural purpose In combination with metals.  Steering ... Timing gears, self-lubricating bearings, pulleys, etc. Noise & vibrations are reduced. 

Description : Define electrochemical equivalent. Give its unit. 

Last Answer : Electrochemical equivalent: Electrochemical equivalent of an electrolyte is defined as the amount of substance deposited or liberated at an electrode by passing 1 ampere current for one second.  OR  ... by passing 1 coulomb of electricity through an electrolyte solution.  Unit: gms/ coulomb 

Description : Write four properties of Ceramic Materials and give it’s applications in automobile industry.

Last Answer : Properties of Ceramic Material: i. Inorganic & non -metallic material. ii. Brittle material. iii. Insulation to flow of electric current iv. Withstand high temperature. v. Rock like appearance vi. Hardness ... mica etc. 7. In I.C. engines and turbines as armor plates. 8. In cutting tools 

Description : Name the type of bonding in water molecule and explain its formation.  

Last Answer : Type of bonding : Single co-valent bonding.  Formation of Water Molecule:  Water molecule (H2O) contains two atoms of hydrogen & one atom of oxygen. Each hydrogen atom is in short ... atom. Thus, two separate single co-valent bonds are formed between hydrogen & oxygen atoms. 

Description : Explain with diagram electromagnetic separation method 

Last Answer : Principle- This method is based upon magnetism Process -In this process powdered ore is allowed to fall through hopper on leather or rubber belt which is constantly moving over two ... magnetic impurities 2. concentration of non magnetic ore like Tinstone which contains magnetic impurities   

Description : Define the term: i)Tensile strength ii) Hardness iii) Ductility iv) Soldering

Last Answer : i)Tensile Strength : Tensile Strength is the ability of metal to carry a load without breaking. ii)Hardness :- Hardness is the ability of metal to resist wear or abrasion and resist penetration. ... a non ferrous alloy having melting point below 4000 c in between them is called as soldering. 

Description : Define electrolytic dissociation.State Arrhenius theory of electrolytic dissociation.  

Last Answer : Electrolytic dissociation: - The process of splitting up of an electrovalent compound (Electrolyte) into its ions when dissolved in proper solvent like water is called as electrolytic dissociation. Arrhenius ... that can be present on cation or anion depends upon valency of parent atom.  

Description : Explain the process of electroplating of an iron spoon with silver. 

Last Answer : 1. Electroplating of silver on iron - spoon is carried out in a rectangular steel tank. 2. Iron spoon, which is to be electroplated, is cleaned by boiling with caustic soda in order to remove ... gets slowly dissolve in solution by giving Ag+ ions.  The schematic representation is : 

Description : Why duralumin sheets are used in making aeroplanes body?

Last Answer : Duralumin sheets possess following properties: 1. Light in weight, tough. 2. Corrosion resistant. 3. Easily castable. 4. Strong as mild steel with good tensile strength. Because of these properties it is used in making aeroplanes body. 

Description : Define Alloy. Name two methods of preparing alloy. 

Last Answer : Alloy :- It is defined as homogeneous mixture of two or more elements one of which must be a metal. Methods of preparing alloy. 1. Fusion 2. Compression

Description : What is the affect of temperature on degree of dissociation?

Last Answer : At higher temperature, molecules acquire thermal energy .Hence the velocity of molecules increases and it overcomes the electrostatic force of attraction between ions and separate the ions.Hence degree of ionization increases with increase in temperature. 

Description : Differentiate between strong and weak electrolyte. 

Last Answer : Strong electrolytes  Weak Electrolytes   1) Electrolytes which are highly ionized in solution & hence have high degree of ionization are known as strong electrolytes.  1) Electrolytes which are weakly ionized ... KOH, NaOH 4) e.g. Weak acids - CH3COOH, H2CO3, Weak base-NH4OH

Description : Why chlorine is electronegative? What type of valency it will show with hydrogen.  

Last Answer : Chlorine gains one electron from another atom so as to complete its octet therefore chlorine is electronegative.  Type of valency with hydrogen : Co-valency.  

Description : Define atom .Name the sub atomic particles. 

Last Answer : Atom: It is the smallest particle of an element which can not be further subdivided & which can take part in all chemical changes.  Sub atomic particles: Electron ,Proton, Neutron 

Description : Write four properties and four applications of urea formaldehyde resin.

Last Answer : Properties: 1) The bond film produced by Urea - Formaldehyde resin is quite rigid & transparent. 2) It is good resistant to moisture, insects & fungi. 3) However action of acids & alkalies ... 3) Used as bonding articles in aircraft. 4) Used as bonding articles in ship building industries etc.

Description : Give the properties and application of following materials :i) mica ii) rubber

Last Answer : i) Mica: Properties of Mica:  1. It has very high resistance 2. It is heat resistant, moisture resistant, it has good elasticity and is fire proof 3. It retains its electrical and mechanical ...   Applications of Rubber: 1. It is extensively used as insulation on wires, cables etc.

Description : What is glass-wool? Give its properties and applications. 

Last Answer : Glass wool: It is fibrous wool like material, which is made up of fine filament of glass like ordinary wool is known as glass wool.  Properties :-  1) Its thermal conductivity is low ... motors, ovens, refrigerators. 5) It is used in the manufacturing fiber glass by reinforcing with plastic resins

Description : The four properties of a system viz. P, V, T, S are related by __________ equation. (A) Gibbs-Duhem (B) Gibbs-Helmholtz (C) Maxwell's (D) None of these

Last Answer : (C) Maxwell's

Description : Heating rubber with sulphur for the bet- terment of its properties ike tensile steqasbh: hardness; elasticity etc. is called as?

Last Answer : Vulcanisation

Description : __________ possesses viscoelastic properties. (A) Cork (B) Glass (C) Graphite (D) Rubber

Last Answer : (D) Rubber

Description : Pick out the wrong statement (A) Cold rubber (SBR) is superior as compared to hot rubber (SBR) (B) Polymerisation temperature can modify the properties of SBR (C) Production of cold SBR employs lower pressure as compared to that of hot SBR (D) None of these

Last Answer : (D) None of these

Description : Silico-manganese steels (containing 0.7% Mn, 0.5% C and 2% Si) (A) Do not require heat treatment for any of its applications (B) Are used for leaf and coiled springs (C) Do not have good resilience properties (D) Is tempered at 850°C

Last Answer : (B) Are used for leaf and coiled springs

Description : What properties need to be considered for applications calling for following re¬quirements :

Last Answer : (i) rigidity (ii) strength for no plastic deformation under static load (iii) strength to withstand overload without fracture. (iv) wear resistance (v) reliability and safety.

Description : The properties necessary to guarantee a reliable transaction in databases and other applications is referred to as _____________ a) BASE b) ACID c) ATOM d) All of the mentioned

Last Answer : ACID

Description : The properties necessary to guarantee a reliable transaction in databases and other applications is referred to as _____________ a) BASE b) ACID c) ATOM d) All of the mentioned

Last Answer : ACID

Description : Ferrite devices are useful in microwave applications because they possess what properties?

Last Answer : Magnetic properties and high resistance

Description : Explain properties and applications of GRP/CRP and CRP composites.

Last Answer : Properties of GRP( Glass Reinforced Plastic)/CRP ( Carbon Reinforced Plastic):  1.High corrosion resistance: Offering exceptional corrosion resistance, GRP/CRP is highly tolerant of the most aggressive of ... drone 8. Lightweight poles such as tripod legs etc 9. Denstistry

Description : Discuss the properties and applications of Ti-6Al-4V titanium alloy.

Last Answer : Properties of Ti-6Al-4V 1. The high strength 2. Low weight ratio 3. Outstanding corrosion resistance 4. Good machinability 5. Excellent mechanical properties Applications: Ti6Al4V is ... as implants and prosthesis 3. Marine applications 4. Chemical industry 5. Gas turbines Powder

Description : Write any two properties and any two applications of caustic soda. 

Last Answer : Properties of caustic soda  MW : 40, BP : 1390oC, MP : 318 oC , Very soluble in water with high exothermic heat of reaction. Uses of Caustic soda  1. Textile industry 2. Paper and Pulp 3. Alumina 4. Soap and detergent 5. Dyes

Description : Write two applications and two properties of Rose metal.

Last Answer : Properties: 1. It is easily fusible alloy. 2. It’s melting point is 89 0C. Applications: 1. It is used for making fire – alarms, fuses wires. 2. It is used for casting dental works 3. It is used in automatic sprinkler system.

Description : Write the properties and applications of epoxy resin.

Last Answer : Properties: i) They have good chemical resistance. ii) They have low shrinkage during curing. iii) They possess good electrical resistance. iv) These compounds can be used in solid and ... to their electrical resistance they are widely used in making insulators, bushings etc. for high voltage. 

Description : State composition, properties and applications of Tinmann’s solder

Last Answer : Composition, properties and applications of Tinmann’s solder :

Description : State two properties and applications of copper.

Last Answer : Properties :-  1) Soft, ductile, malleable 2) Excellent resistance to corrosion 3) Non magnetic 4) Good machinability 5) Can be brazed ,soldered or welded 6) Resistance to fatigue and abrasion ... automobile radiator 3) Screw machine parts 4) Household utensils 5) Wires ,sheet ,tubes etc. 

Description : Write the properties and applications of thermocole.

Last Answer : Properties :-  i) It is soft, spongy, porous, low density. ii) Its thermal & electrical conductivity is low. iii) It is quite shock - proof. iv) It is quite strong through extremely light. ... used for storing ice, ice creams & medicines. 7) It is used as a float for swimming.

Description : Write the preparation, properties and applications of glasswool. 

Last Answer : Preparation :- i) Molten mass of alkali free glass is passed through sieve holes of 0.0005 cm diameter (5x10-4 cm). ii) The glass filaments obtained are the thrown over a rapidly rotating ... ovens, refrigerators. 5) It is used in the manufacturing fiber glass by reinforcing with plastic resins. 

Description : State the working principle of Cam. List its types. Give any four applications of Cam.

Last Answer : Working principle of CAM: A cam is mechanical rotating machine element which is used for converting one motion in to another. It is rotating machine element that gives reciprocating or ... control mechanisms. Spinning and weaving machineries. Textile machineries. Paper cutting machines.

Description : Enlist four properties of Magnesium AlloyAZ31 and also give it’s applictions. 

Last Answer : Properties of Magnesium AlloyAZ31: 1) An extremely light metal, 2) This alloys are of Excellent Specific Strength, 3) Excellent Sound Damping Capabilities, 4) Good ... 6) Excellent Machinability Applications: Electronics, Aerospace, Transportation Industries &Sports Industries, etc.

Description : Explain Biodiesel fuel. Give any four applications.

Last Answer : Biodiesel diesel  Bio diesel is a vegetable oil or animal fat based diesel fuel. It consists of long chain alkyl esters. It is made chemically reacting liquids with an alcohol. i) It is a ... diesel with 20% biodiesel) 4.Generatore 5.Air craft engines 6.Heating oil in domestic commercial boiler

Description : Explain any four different frequency bands and give their two applications of each.

Last Answer : Explain any four different frequency bands and give their two applications of each.

Description : Give four applications of photoelectric cell. 

Last Answer : i) It is used in Lux-meter ii)It is used for automatic control of traffic signals iii)It is used to switch on and off automatically the street lights. iv)It is used in recording and reproduction of ... shooting of film. v)It is used in television sets, fire alarms vi)It is used in Exposure meter.

Description : Draw cross section of timber. Give any four engineering properties of timber.

Last Answer : Properties of Timber: 1. Appearance: A Freshly cut timber should have shining appearance 2. Colour: The Colour of the timber should be dark. Light colour of timber indicates low strength. ... : Good timber should be free from defects 10. Texture: The texture of timber should be even

Description : you are stuck in a house you have four objects to use you have a wooden chair,a ladder a piano,and an axe. The axe is rubber What would you use to get out?? hint* you can't get out with breaking it and you can only pick one object. -Riddles

Last Answer : you use the piano KEYS!!!!!

Description : Name any four synthetic rubber.

Last Answer : 1. Butyl rubber 2. Buna N 3. Buna S 4. Thikol 5. Neoprene

Description : Related to inductor state (i) any two types (ii) any two applications 

Last Answer : Ans: i) Types of inductors & their applications:  1) Iron core inductors: Used in Low frequency applications such as filter chokes, amplifiers  2) Air core inductors: Used in high ... frequency upto 100MHz applications such as oscillators, RF amplifiers, Radio and TV receivers, signal generators.