Which material is very hard and very ductile? -General Knowledge

1 Answer

Answer :

The answer is 'Nichrome'

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Description : Which material is very hard and very ductile? -General Knowledge

Last Answer : answer:

Description : Which material is very hard and very ductile?

Last Answer : Nichrome

Description : Case hardening of a material is (A) Followed by tempering or carburising (B) Preceded by its tempering (C) Done to get a soft ductile interior with a very hard surface (D) Carried out to get extreme hardness in its core

Last Answer : (D) Carried out to get extreme hardness in its core

Description : Which material is very hard and very ductile?

Last Answer : Nichrome

Description : 1. Which material is very hard and very ductile? 2. Which is called a banker's cheque' ? 3. With Which game/sport is Popping crease' associated? 4. Which lake in India has the ... practised in the densely populated regions of the world? 20. In which year Delhi became the capital of India?

Last Answer : Answer : 1. Nichrome 2. Demand draft 3. Cricket 4. Sambhar 5. 1748 A.D. 6. Methyl-iso-cyanate 7. Sikkim 8. E = mc2 9. Ennore 10. Robert Clive 11. Literature and Journalism 12. 6 ... 15. Lord Lytton 16. By the Election Commission 17. Lavoisier 18. Bourlog Award 19. Intensive farming 20. 1911

Description : A dense structure of grinding wheel is not used for the (A) Ductile material (B) Hard materials (C) Brittle materials (D) Finishing cuts

Last Answer : A) Ductile material

Description : Which of the following statements about the physical properties of metal is not correct? (a) All metals are solid except mercury (b) Most metals are hard except sodium and potassium (c) Metals are not malleable (d) Most metals are ductile

Last Answer : Ans:(c)

Description : Thorium metal (A) Resembles steel in appearance (B) Is less hard (in the range of silver) (C) Is highly ductile (D) All (A), (B) and (C

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

Description : Increasing sulphur content in pig iron tends to make it (A) Soft (B) Hard (C) Tough (D) Ductile & malleable

Last Answer : Option B

Description : Fibrous fracture is normally encountered in the __________ materials. (A) Hard (B) Elastic (C) Ductile

Last Answer : Option C

Description : What sort of alloys do you use for bridges: A. Ductile B. Hard C. High sensitivity

Last Answer : B. Hard

Description : The substance which undergo plastic deformation until break is a) Brittle b) Ductile c) Hard d) Soft

Last Answer : d) Soft

Description : The substance which break just after elastic limit: a) Ductile b) Brittle c) Soft d) Hard

Last Answer : d) Hard

Description : A material capable of undergoing large permanent deformation, when subjected to compression is termed as (A) Malleable (B) Ductile (C) Brittle (D) None of these

Last Answer : (A) Malleable

Description : Cast iron is a __________ material. (A) Brittle (B) Ductile (C) Tough (D) Malleable

Last Answer : (A) Brittle

Description : A material is called 'ductile', if it can be (A) Drawn into wires (B) Hammered to a thin sheet (C) Fractured without deformation (D) Made lustrous by heating it

Last Answer : (A) Drawn into wires

Description : . A material capable of undergoing large permanent deformation, when subjected to tension is termed as (A) Friable (B) Ductile (C) Brittle (D) None of these

Last Answer : (B) Ductile

Description : In the Haig-Soderberg diagram, the test data for ductile material falls near the ______________ a) Soderberg line b) Goodman Line c) Gerber line d) Haig line

Last Answer : c) Gerber line

Description : In which of the following case stress concentration factor is ignored? a) Ductile material under static load b) Ductile material under fluctuating load c) Brittle material under static load

Last Answer : a) Ductile material under static load

Description : In a ductile material, the strength are (a)Firstly Ultimate >yield > elastic limit (b) Secondly Ultimate > yield =elastic limit (c) Thirdly Ultimate=yield=elastic limit (d) None

Last Answer : (a)Firstly Ultimate >yield > elastic limit

Description : A ductile material may not meet a failure if it has been tested for the theories of failure (a) Firstly Maximum Shear Stress Theory (b) Secondly Maximum Shear Strain Energy Theory (c) Both (a) & (b) (d) None

Last Answer : (c) Both (a) & (b)

Description : A ductile material may not meet a failure if it has been tested for the theories of failure (a) Firstly Maximum Principal Theory (b) Secondly Maximum Principal Strain Theory (c) Thirdly Maximum principal strain energy theory (d) None

Last Answer : (d) None

Description : Pick up the correct statement from the following: (A) A ductile material has large plastic zone (B) A brittle material has no plastic zone (C) A rigid material has no plastic zone (D) All the above

Last Answer : All the above

Description : During a tensile test on a ductile material (A) Nominal stress at fracture is higher than the ultimate stress (B) True stress at fracture is higher than the ultimate stress (C) True stress at fracture is the same as the ultimate stress (D) None of these

Last Answer : (B) True stress at fracture is higher than the ultimate stress

Description : __________ test is the appropriate test to determine whether a material is ductile or brittle. (A) Impact (B) Cupping (C) Hardness (D) Tensile

Last Answer : (A) Impact

Description : The material in which large deformation is possible before absolute failure by rupture takes place, is known as (a) Ductile (b) Plastic (c) Brittle (d) Elastic

Last Answer : Ductile

Description : A power transmitting ductile material shaft under P, T and M will be designed on the basis of (a) Rankine theory (b) Guest Theory (c) Haigh theory (d) None

Last Answer : (b) Guest Theory

Description : A power transmitting ductile material shaft under P, T and M will fail under (a) Tensile considerations only (b) Compressive considerations only (c) Shear considerations only (d) None

Last Answer : (c) Shear considerations only

Description : Which stress strain curve is more steep (a) For a ductile material (b) For a brittle material (c) For a pure metal (d) None

Last Answer : b) For a brittle material

Description : The most malleable, ductile low resistivity material is (A) Copper. (B) Aluminium. (C) Silver. (D) Iron.

Last Answer : (C) Silver.

Description : Define factor of safety for ductile and brittle material.

Last Answer : Factor of safety for ductile material: It is defined as ratio of yield stress to the working stress or  Factor of safety for Brittle material : It is defined as ratio of ultimate stress to the working stress /permissible /design stress or

Description : (3) reflection of light due to the presence of free electrons Explanation: Lustre (or luster) is the way light interacts with the surface of a crystal, rock, or mineral. The word ... conductivity, and high density. Typically they are malleable and ductile, deforming -under stress without cleaving.

Last Answer : Cloud is a colloidal dispersion of – (1) Air in a dispersion medium of water (2) Fog in a dispersion medium of water (3) Mist in a dispersion medium of air (4) Water drops in a dispersion medium of air

Description : hich of the following statements is correct? (a) All metals are ductile. -Science

Last Answer : Answer is (c) Generally, metals are ductile.

Description : Which formation of iron is least ductile?

Last Answer : Which formation of iron is least ductile? A. Hard steel B. Cast iron C. Mild steel D. Wrought iron

Description : What type of solid is ductile and malleable?

Last Answer : Several metals are ductile and malleable.

Description : Are covalent molecular compounds ductile?

Last Answer : What is the answer ?

Description : If a metal can be drawn into wires relatively easily it is called: (1) malleable (2) ductile (3) extractive (4) tactile

Last Answer : (2) ductile Explanation: Ductility is a physical property of a material associated with the ability to be hammered thin or stretched into wire without breaking.

Description : 'Shock-absorbers are usually made of steel as it – (1) is not brittle (2) has lower elasticity (3) has higher elasticity (4) has no ductile property

Last Answer : (3) has higher elasticity Explanation: A shock absorber is a mechanical device designed to smooth out or damp shock impulse, and dissipate kinetic energy. Steel is an alloy made by combining iron and other elements, the most common of these being carbon.

Description : Which theories of failure are used for (a) ductile materials, and (B) brittle materials ?

Last Answer : For ductile materials, theories of failure used are maximum shear stress theory, and maximum energy of distortion theory; while for brittle materials, theory of maximum principal stress, and maximum strain are used.

Description : List at least two factors that promote transition from ductile to brittle fracture.

Last Answer : Manner of loading, and the rate of loading promote transition from ductile to brittle frac¬ture. A machine member may have ductile failure under static loading but may fail in brittle fashion when the ... testing speed but if load is applied at a high velocity then failure may be brittle.

Description : Polystyrene is a __________ plastic at room temperature. (A) Ductile (B) Brittle (C) Malleable (D) None of these

Last Answer : (B) Brittle

Description : Zinc is highly __________ at room temperature. (A) Ductile (B) Resistant to atmospheric corrosion (C) Malleable (D) Brittle

Last Answer : (B) Resistant to atmospheric corrosion

Description : Materials having __________ lattice structure are usually most ductile. (A) FCC (B) BCC (C) HCP (D) Cubic

Last Answer : (A) FCC

Description : Wrought iron is (A) High carbon iron (B) Highly resistance to acid corrosion (C) Malleable & ductile; and hence is used for chain links, hooks & couplings (D) An alloy of iron, chromium & carbon

Last Answer : (C) Malleable & ductile; and hence is used for chain links, hooks & couplings

Description : Pick out the wrong statement. (A) Metal/alloys having hexagonal crystal lattice structure are less malleable than those having cubic crystal lattice structure (B) Metal/alloys having body centred cubic ... D) Both ferritic & austenitic stainless steel has a face centred cubic (fcc) crystal structure

Last Answer : (C) Tungsten has a body centred cubic (bcc) crystal lattice structure

Description : Ferric stainless steels compared to austenitic stainless steels (A) Have lower corrosion resistance (B) Are harder to fabricate (C) Are less ductile and hence less suitable for cold pressing (D) All (A), (B) and (C)

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

Description : Substances that elongate considerably and undergo plastic deformation before they break are known as A. brittle substances B. breakable substances C. ductile substances D. elastic substances

Last Answer : ductile substances

Description : Distortion energy theorem is not recommended for ductile materials. a) True b) False

Last Answer : b) False

Description : Distortion energy theorem is not recommended for ductile materials. a) True b) False

Last Answer : b) False

Description : Theories of elastic failure while dealing with ductile materials consider the failure criterion as (a) Ultimate stress (b) Yield stress (c) Both ultimate and yield stress (d) None

Last Answer : (b) Yield stress