When do all the magnetic materials lose their magnetic properties? -Do You Know?

When do all the magnetic materials lose their magnetic properties? -Do You Know?
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When do all the magnetic materials lose their magnetic properties?

Description : When do all the magnetic materials lose their magnetic properties?

Last Answer : Strongly heated

1. By which algae is Nitrogen fixation done? 2. Which post does the Constitution of India not mention? 3. When do all the magnetic materials lose their magnetic properties? 4. Why are the Canals in Western Europeare mainly used? 5. By whom was the ‘Tahglq-i-Hind', a famous literary work, written?

Description : 1. By which algae is Nitrogen fixation done? 2. Which post does the Constitution of India not mention? 3. When do all the magnetic materials lose their magnetic properties? 4. Why are the ... belongs to which mountains? 20. During the reign of emperor was the artillery most perfect and numerous?

Last Answer : Answer : 1. Blue-green algae 2. The Deputy Prime Minister 3. Strongly heated 4. For inland navigation 5. Alberuni 6. 5th June 7. Manipur 8. Analogous organs 9. Oxbow lake 10. Vallabhacharya 11 ... 17. Due to presence of Bacteriophages 18. As a Union of States 19. Fold mountains 20. Aurangzeb

Why do most materials have magnetic properties too weak to be detected easily?

Description : Why do most materials have magnetic properties too weak to be detected easily?

Last Answer : Feel Free to Answer

Materials for rain-proof coats and tents owe their water proof properties to _____? A. Surface tension B. Viscosity C. Elasticity D. Specific gravity

Description : Materials for rain-proof coats and tents owe their water proof properties to _____? A. Surface tension B. Viscosity C. Elasticity D. Specific gravity

Last Answer : ANSWER: A

Materials for rain proof coats and tents owe their water proof properties to – (1) Surface tension (2) Viscosity (3) Specific gravity (4) Elasticity

Description : Materials for rain proof coats and tents owe their water proof properties to – (1) Surface tension (2) Viscosity (3) Specific gravity (4) Elasticity

Last Answer : (1) Surface tension Explanation: Materials for rain proof coats and tents owe their water proof properties to Surface Tension. The surface of a liquid behaves like an elastic membrane and therefore, has a tendency to contract. This property of liquid is called Surface Tension.

Ferromagnetic materials owe their properties to __________ inner subshells. (A) Completely filled (B) Partially filled (C) Equally filled (D) Vacant

Description : Ferromagnetic materials owe their properties to __________ inner subshells. (A) Completely filled (B) Partially filled (C) Equally filled (D) Vacant

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Classify plastic materials into two categories, describe their important properties and give two examples of each.

Description : Classify plastic materials into two categories, describe their important properties and give two examples of each.

Last Answer : Ans: Plastic materials can be classified into thermoplastic and thermosetting plastics. Thermoplastic materials:- The properties of these plastic materials do not change considerably if they are melted ... forming elastic threads and films. Examples are Phenol formaldehyde (Bakelite), Epoxy resins.

Materials for rain proof coats and tents owe their water proof properties to (1) Surface tension (2) Viscosity (3) Specific gravity (4) Elasticity

Description : Materials for rain proof coats and tents owe their water proof properties to (1) Surface tension (2) Viscosity (3) Specific gravity (4) Elasticity

Last Answer : Surface tension

Explain the materials used in wearable antennas with their properties

Description : Explain the materials used in wearable antennas with their properties

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Trommels separate a mixture of particles depending on their (A) Size (B) Density (C) Wettability (D) Electrical & magnetic properties

Description : Trommels separate a mixture of particles depending on their (A) Size (B) Density (C) Wettability (D) Electrical & magnetic properties

Last Answer : (A) Size

What are the properties of diamagnetic materials ?

Description : What are the properties of diamagnetic materials ?

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What are the physical properties of nonmetallic materials?

Description : What are the physical properties of nonmetallic materials?

Last Answer : Need answer

Aluminium alloy is one of the most suitable materials of construction for aircrafts mainly due to its (A) High strength to weight ratio (B) Low temperature strength properties (C) Its ability to be cast, rolled, forged & stamped (D) High strength and corrosion & oxidation-resistance at elevated temperature

Description : Aluminium alloy is one of the most suitable materials of construction for aircrafts mainly due to its (A) High strength to weight ratio (B) Low temperature strength properties (C) Its ability ... rolled, forged & stamped (D) High strength and corrosion & oxidation-resistance at elevated temperature

Last Answer : (A) High strength to weight ratio

Ceramic materials possess which of the following properties? a) Brittle and low dielectric constant b) Rigid and low dielectric constant c) Brittle and high dielectric constant d) Rigid and high dielectric constant

Description : Ceramic materials possess which of the following properties? a) Brittle and low dielectric constant b) Rigid and low dielectric constant c) Brittle and high dielectric constant d) Rigid and high dielectric constant

Last Answer : c) Brittle and high dielectric constant

The materials which have the same elastic properties in all directions, are called (A) Isotropic (B) Brittle (C) Homogeneous (D) Hard

Description : The materials which have the same elastic properties in all directions, are called  (A) Isotropic  (B) Brittle  (C) Homogeneous  (D) Hard 

Last Answer : (A) Isotropic 

Isotropic materials have the same __________ in all directions. (A) Induced stresses (B) Density (C) Elastic properties (D) Thermal properties

Description : Isotropic materials have the same __________ in all directions. (A) Induced stresses (B) Density (C) Elastic properties (D) Thermal properties

Last Answer : C) Elastic properties

The compatibility conditions in terms of strains in a two-dimensional problem are associated with (a) Stresses (b) Forces (c) Properties of materials (d) Deformations

Description : The compatibility conditions in terms of strains in a two-dimensional problem are associated with (a) Stresses (b) Forces (c) Properties of materials (d) Deformations

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State two fundamental properties of insulating materials.

Description : State two fundamental properties of insulating materials.

Last Answer : Insulation resistance and dielectric strength.

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Description : State the functions of a fuse. Mention the desirable properties of fuse materials.

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Name two thermal properties of engineering materials.

Description : Name two thermal properties of engineering materials.

Last Answer : Thermal properties of engineering materials:  1. Melting point 2. Specific heat 3. Heat capacity (specific heat capacity) 4. Thermal expansion 5. Thermal conductivity 6. Thermal stability 7. Thermal shock resistance 8. Heat resistance/thermal resistance

State various thermal insulating materials. State any two properties of insulating material

Description : State various thermal insulating materials. State any two properties of insulating material

Last Answer : Thermal insulating materials: 1) Asbestos 2) Aluminum Foil 3) Thermocol 4) Saw dust 5) Cork board slabs 6) Foam glass 7) Rock Wool 8) Glass Wool 9) ... . h) Presence of Moisture: with the increase in moisture content, the coefficient of thermal conductivity rises greatly

What do you mean by eco-friendly building materials? State any two properties of it.

Description : What do you mean by eco-friendly building materials? State any two properties of it.

Last Answer : Eco-friendly means earth-friendly or not harmful to the environment. This term most commonly refers to products that contribute to green living or practices that help conserve resources like water and ... It reduces air pollution, land pollution & water pollution. 7. It is locally available. 

Give properties and uses of ceramic materials in construction.

Description : Give properties and uses of ceramic materials in construction.

Last Answer : Properties: 1. It is hard. 2. It is bristle. 3. It is in the form of amorphous (non-crystalline) 4. The structure is glassy. 5. It is insulator thermally & electrically. 6. It is ... porcelain. 6. For making POP. 7. For making electric. 8. For Manufacturing of sanitary wares, pavers. 

What are the properties of sound insulating materials?

Description : What are the properties of sound insulating materials?

Last Answer : Properties of sound insulating materials: 1. It should be light in weight 2. Easy to handle and fix 3. It should be resistant to attack termite and insect 4. It should have low density and porous texture 5. It should be fire resistance 6. It should be moisture resistance

State the Properties of thermal insulating materials.

Description : State the Properties of thermal insulating materials.

Last Answer : Properties of thermal insulating materials: 1) Thermal insulating should be bio resistant and dry. 2) Thermal resistant should be chemically resistant and fire proof. 3) Thermal resisting ... in the moisture content in the material, the coefficient of thermal conductivity rises greatly.

Discuss functions of flux used to welding. Identify properties of material suitable for flux and state two materials used as flux.

Description : Discuss functions of flux used to welding. Identify properties of material suitable for flux and state two materials used as flux.

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Which one of the following is not basic component of Materials Science? (a) Cost (b) Properties (c) Structure (d) Performance

Description : Which one of the following is not basic component of Materials Science? (a) Cost (b) Properties (c) Structure (d) Performance

Last Answer : (a) Cost 

Give any two properties of area and also raw materials used for urea.

Description : Give any two properties of area and also raw materials used for urea.

Last Answer : Properties of urea M.P 133 oC MW 60 Soluble in water Non toxic Non flammable Raw materials: 1.Carbon dioxide 2.Ammonia

Which of the following physical properties is TRUE of most dense ceramic materials? w) high tensile strength x) good ductility y) high compressive strength z) high electrical conductivity

Description : Which of the following physical properties is TRUE of most dense ceramic materials? w) high tensile strength x) good ductility y) high compressive strength z) high electrical conductivity

Last Answer : ANSWER: Y -- HIGH COMPRESSIVE STRENGTH

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

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 

State any two electrical, mechanical and thermal properties of insulating materials.

Description : State any two electrical, mechanical and thermal properties of insulating materials. 

Last Answer : i) Electrical Properties of insulating material:- 1. It should have high resistance. 2. It should have high breakdown voltage. 3. It should have high dielectric strength. 4. It should have low ... . 4. Ii should have thermal Stability. 5. Co-efficient of thermal expansion should be low.

State properties of insulating materials.

Description : State properties of insulating materials.

Last Answer : (i) Resistivity should be very high. (ii) It should be water resistant. (iii) It should not contain impurities. (iv) It should not be affected chemically and not corroded easily. (v) Its ... It should be mechanically strong (tensile strength should be more). (vii) It should not be porous.

Explain the mechanical properties of insulating materials.

Description : Explain the mechanical properties of insulating materials.

Last Answer : i) Mechanical strength: Mechanical strength depends on temperature and humidity. a) Temperature: High temperature badly affects the mechanical strength of insulating material. While selecting material ... material should have property of easy moulding and machined into required shape and size.

State any four properties of conducting materials.

Description : State any four properties of conducting materials.

Last Answer : Electrical properties of conductivity materials: i) Low resistivity. ii) Low temperature coefficient of resistance. iii) High conductivity. iv) Low heat dissipation.  Mechanical properties of ... properties of conductivity materials: i) Adequate resistant to corrosion. ii) Low oxidation. 

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

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.

Can I make coffee for a week or will it lose properties?

Description : Can I make coffee for a week or will it lose properties?

Last Answer : Some people claim to be able to taste the difference between fresh coffee and reheated coffee, but I can not. I always make a full pot of 12 – 6 oz cups which lasts me three days. I put it in a coffee urn, not a plastic container.

The critical temperature above which the ferromagnetic materials loose their magnetic property is known as (A) hysterisis. (B) Curie point. (C) transition temperature. (D) standard temperature.

Description : The critical temperature above which the ferromagnetic materials loose their magnetic property is known as (A) hysterisis. (B) Curie point. (C) transition temperature. (D) standard temperature.

Last Answer : (B) Curie point

Which are the important raw materials required in cement industry ? -Do You Know?

Description : Which are the important raw materials required in cement industry ? -Do You Know?

Last Answer : answer:

Which are the materials that come out of a volcano at the time of eruption? -Do You Know?

Description : Which are the materials that come out of a volcano at the time of eruption? -Do You Know?

Last Answer : answer:

How are Air-pockets that cause aircrafts to lose altitude suddenly caused? -Do You Know?

Description : How are Air-pockets that cause aircrafts to lose altitude suddenly caused? -Do You Know?

Last Answer : answer:

Could the magnetic properties of a piece of negative mass only be realized around another piece of negative magnetic mass?

Description : Could the magnetic properties of a piece of negative mass only be realized around another piece of negative magnetic mass?

Last Answer : I think you need to define some terms here. What is negative magnetic mass ? I understand each of those words, but the combination into a phrase is essentially meaningless to me. Non-magnetic is a ... of yet. Although anti-matter has been postulated, I'm not aware of its provable existence yet.

The correct statement about the magnetic properties of `[Fe(CN)_(6)]^(3-) and [FeF_(6)]^(3-) ` is : (Z=26)

Description : The correct statement about the magnetic properties of `[Fe(CN)_(6)]^(3-) and [FeF_(6)]^(3-) ` is : (Z=26)

Last Answer : The correct statement about the magnetic properties of `[Fe(CN)_(6)]^(3-) and [FeF_(6)]^(3-) ` ... ` is paramagnetic, `[FeF_(6)]^(3-)` is diamagnetic

Point out the wrong statement about the magnetic properties of soft iron and steel.

Description : Point out the wrong statement about the magnetic properties of soft iron and steel.

Last Answer : Point out the wrong statement about the magnetic properties of soft iron and steel. A. The ... to slag formation is minimised in open hearth process

In terms magnetic properties oxygen belong to

Description : In terms magnetic properties oxygen belong to

Last Answer : Paramagnetic materials

Curie point is the temperature at which (1) Matter becomes radioactive (2) A metal loses magnetic properties (3) A metal loses conductivity (4) Transmutation of metal occurs

Description : Curie point is the temperature at which (1) Matter becomes radioactive (2) A metal loses magnetic properties (3) A metal loses conductivity (4) Transmutation of metal occurs

Last Answer : (2) A metal loses magnetic properties Explanation: In physics and materials science, the Curie temperature (TO, or Curie point, is the temperature at which a ferromagnetic or a ... in piezoelectric materials to refer to the temperature at which spontaneous polarization is lost on heating.

Petroleum deposits are detected by the. (A) Oil seepage at the surface of the earth (B) Measurement of density, elasticity and magnetic & electric properties of the rock in the crust of the earth (C) Age & nature of rocks inside the crust of the earth (D) All (A), (B) and (C)

Description : Petroleum deposits are detected by the. (A) Oil seepage at the surface of the earth (B) Measurement of density, elasticity and magnetic & electric properties of the rock in the crust of the earth (C) Age & nature of rocks inside the crust of the earth (D) All (A), (B) and (C)

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

Addition of tungsten to steel imparts (A) Magnetic properties (B) Cutting hardness (C) Corrosion resistance (D) Ductility

Description : Addition of tungsten to steel imparts (A) Magnetic properties (B) Cutting hardness (C) Corrosion resistance (D) Ductility

Last Answer : (B) Cutting hardness

PROPERTIES OF MAGNETIC LINES OF FORCE

Description : PROPERTIES OF MAGNETIC LINES OF FORCE

Last Answer : PROPERTIES OF MAGNETIC LINES OF FORCE: 1) They are closed continuous curve. 2) They start from North Pole and end on South Pole. 3) The tangent at any point on the magnetic lines of force gives the ... other. 5) They are crowded at strong magnetic field. 6) They are weak at far from each other.

In terms of magnetic properties, oxygen belongs to?

Description : In terms of magnetic properties, oxygen belongs to?

Last Answer : Paramagnetic materials

In the heating process of the ________type a simple method of temperature control is possible by means of a special alloy which loses its magnetic properties at a particular high temperature and regains them when cooled to a temperature below this value. (A) Indirect induction over (B) core type induction furnace (C) coreless induction furnace (D) high frequency eddy current

Description : In the heating process of the ________type a simple method of temperature control is possible by means of a special alloy which loses its magnetic properties at a particular high temperature and regains ... ) core type induction furnace (C) coreless induction furnace (D) high frequency eddy current

Last Answer : Ans: D Magnetic property of alloy changes with change of the temperature and Heat is produced due to eddy current = i2R and i α f2