Addition of nickel to copper improves its
(A) Machinability
(B) Ductility
(C) Strength
(D) Hardness

1 Answer

Answer :

(D) Hardness

Related questions

Description : In cold working of metal as compared to its hot working (A) Cracks and blow holes are eliminated (B) Ductility and impact strength improves (C) Appreciable strain hardening is produced (D) Yield stress, hardness and fatigue strength is not at all affected

Last Answer : (C) Appreciable strain hardening is produced

Description : The addition of antimony in tin-based alloys improves its (A) Rupture strength and hot hardness (B) Impact strength and bonding strength (C) Deformation resistance (D) Wear resistance

Last Answer : (C) Deformation resistance

Description : Pick out the correct statement. (A) Hot worked materials are subjected to annealing to remove internal stresses (B) Annealing of steel hardens it slightly (C) Normalising of a material induces stresses (D) Tempering of a material improves ductility & toughness but reduces hardness & brittleness

Last Answer : (D) Tempering of a material improves ductility & toughness but reduces hardness & brittleness Share

Description : Addition of silicon to cast iron (A) Promotes graphite module formation (B) Improves its ductility (C) Does not promote graphite flakes formation (D) Increases the fluidity of molten metal

Last Answer : Option D

Description : Addition of __________ to steel does not impart hardness. (A) Nickel (B) Copper (C) Chromium (D) Silicon

Last Answer : : Option B

Description : Addition of __________ to steel does not impart hardness. (A) Nickel (B) Copper (C) Chromium (D) Silicon

Last Answer : Option B

Description : All of the following alloying elements of steel increases hardness but sacrifice ductility, except (A) Nickel (B) Vanadium (C) Molybdenum (D) Chromium

Last Answer : (A) Nickel

Description : Addition of lead, sulphur and phosphorus to low carbon steel helps in improving its (A) Corrosion resistance (B) Tensile strength (C) Machinability (D) Compressive strength

Last Answer : (C) Machinability

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

Last Answer : (B) Cutting hardness

Description : Manganese in steel affects its (A) Ductility (B) Tensile strength (C) Hardness (D) None of these

Last Answer : (B) Tensile strength

Description : With increase in the carbon percentage in the steel, its (A) Hardness increases (B) Ductility reduces (C) Tensile strength increases (D) All (A), (B) and (C)

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

Description : Presence of 0.3 to 0.5% arsenic in copper increases its (A) Ductility (B) Malleability (C) Tenacity & hardness (D) Electrical conductivity

Last Answer : (C) Tenacity & hardness

Description : Distortion or change in shape of a cast partial denture clasp during its clinical use probably indicates that the: A. Ductility was too low B. Hardness was too great C. Ultimate tensile strength was too low D. Tension temperature was too high E. Elastic limit was exceeded

Last Answer : E. Elastic limit was exceeded

Description : Tick of the property, which is different from the group (A) Ductility. (B) Resistivity. (C) Tensile strength. (D) Hardness.

Last Answer : (B) Resistivity

Description : Define ductility; plasticity; hardness strength.

Last Answer : Definition: 1) Ductility Ductility is the ability of a material to be deformed plastically without fracture under tensile strength. Ductility is the property of material by which materials can be ... or cutting. The ability of a material to resist wear or abrasion and resist penetration.

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 : Addition of __________ in steel can help in increasing the depth of hardness. (A) Nickel (B) Chromium (C) Vanadium (D) Tungsten

Last Answer : (D) Tungsten

Description : Pick out the wrong statement about the machinability of metals. Machinability of a metal (A) Decreases with increase in strain hardening tendencies (B) Decreases with increase in hardness, in general (C) Depend on the composition, microstructure and physical & mechanical

Last Answer : Option C

Description : Define the terms: i) Hardness ii) Toughness iii) Brazing iv) Machinability

Last Answer : i) Hardness:- Hardness is the property of metal possessed by a material which enables it to resist penetration or abrasion or scratching by other material. Diamond is the hardest of known materials.  ... can be easily cut by cutting tools to produce a desired shape & surface finish on its surface

Description : Softness of silver can be converted into hardness by alloying it with small quantity of (A) Copper & nickel (B) Zinc (C) Aluminium (D) Tin

Last Answer : (A) Copper & nickel

Description : Copper has very low (A) Malleability (B) Ductility (C) Tensile strength (D) Thermal & electrical conductivity

Last Answer : (C) Tensile strength

Description : Addition of __________ to steel does not help in improving its machinability. (A) Sulphur (B) Silicon (C) Lead (D) Phosphorous

Last Answer : (B) Silicon

Description : Addition of __________ to steel does not help in improving its machinability. (A) Sulphur (B) Silicon (C) Lead (D) Phosphorous

Last Answer : Option B

Description : With increase in carbide/graphite ratio in cast iron, its (A) Hardness & brittleness increases (B) Ductility decreases (C) Both (A) and (B) (D) Neither (A) nor (B)

Last Answer : (C) Both (A) and (B)

Description : The most distinguished property of malleable cast iron is its high (A) Ductility (B) Hardness (C) Malleability (D) None of these

Last Answer : (A) Ductility

Description : Increasing the carbon content of steel (A) Reduces the upper shelf energy (B) Increasing the ductility transition temperature (C) Decreases brittleness (D) Decreases hardness

Last Answer : (B) Increasing the ductility transition temperature

Description : Notched bar test is used for testing the __________ of a material. (A) Impact strength (B) Endurance limit (C) Machinability (D) Corrosion resistance

Last Answer : (A) Impact strength

Description : Lead is added to 60:40 brass primarily to improve (A) Machinability (B) Corrosion resistance (C) Fluidity (D) Strength

Last Answer : (A) Machinability

Description : Plastics as a material of construction suffer from the drawback of low (A) Machinability (B) Density (C) Strength (D) Plastic deformatio

Last Answer : Option C

Description : Normalising does not __________ of a metal. (A) Improve machinability & tensile strength (B) Remove internal stresses (C) Refine the structure (D) Remove strains caused by cold working

Last Answer : Option B

Description : In case of brasses, with decreasing zinc percentage and increasing copper percentage, its __________ increases. (A) Percentage elongation (B) Brinell hardness (C) Tensile strength (D) All 'a', 'b' & 'c'

Last Answer : (A) Percentage elongation

Description : Presence of nickel in steel improves its (A) Corrosion resistance (B) Cutting ability (C) Wear resistance (D) All (A), (B) and (C

Last Answer : (A) Corrosion resistance

Description : Presence of nickel & chromium in steel does not raise its (A) Elastic limit (B) Machining properties (C) Ductility (D) Resilience Answer: Option A

Last Answer : Option A

Description : The yield strength and tensile strength of low carbon steel may be improved by the addition of (A) Manganese (B) Chromium (C) Nickel (D) Vanadium

Last Answer : Answer: Option D

Description : Which of the following is (are) true? (A) Cast iron has poor tensile strength compared to steel (B) Failure of cast iron flywheel is sudden and total (C) Machinability of cast iron flywheel is poor compared to steel flywheel (D) All of the above

Last Answer : (D) All of the above

Description : Define: i)Tensile strength ii) Machinability

Last Answer : i) Tensile strength: It is the ability or capacity of a metal to carry the load without breaking. Or A tensile strength of a metal is its ability to resist pull without breaking.  ii) Machinability: ... can be easily cut by cutting tools to produce a desired shape & surface finish on its surface. 

Description : Presence of cobalt in steel improves its (A) Cutting ability (B) Corrosion resistance (C) Tensile strength

Last Answer : (A) Cutting ability

Description : When the steel is subjected to normalising, its __________ decreases. (A) Yield point (B) Ductility (C) Ultimate tensile strength (UTS)

Last Answer : (B) Ductility

Description : Work hardening of a material (A) Decreases its tensile strength (B) Decreases its ductility (C) Increases its ductility (D) Does not affect its ductility

Last Answer : (B) Decreases its ductility

Description : Cast iron has (A) High ductility (B) High malleability (C) Very high tensile strength (D) Its elastic limit very close to ultimate breaking strength

Last Answer : (D) Its elastic limit very close to ultimate breaking strength

Description : __________ of a material results, when its strength is increased & ductility is decreased by heating at a relatively lower temperature after cold working. (A) Solid solution hardening (B) Screw dislocation (C) Strain ageing (D) Twinning

Last Answer : (C) Strain ageing

Description : Cast iron is having very high (A) Proximity between its elastic limit and ultimate breaking strength (B) Ductility (C) Tensile strength (D) All (A), (B) and (C)

Last Answer : (A) Proximity between its elastic limit and ultimate breaking strength

Description : Pick out the wrong statement. (A) Bronze is an alloy of copper & tin (B) Brass is an alloy of copper & zinc (C) The alloy named 'German silver' does not contain any silver (D) The ability of a material to fracture without appreciable deformation is called its ductility

Last Answer : (D) The ability of a material to fracture without appreciable deformation is called its ductility

Description : Cast iron has (A) Very high tensile strength (B) High ductility (C) High malleability (D) Elastic limit close to ultimate breaking strength

Last Answer : (D) Elastic limit close to ultimate breaking strength

Description : Cast iron has very high (A) Compressive strength (B) Ductility (C) Shock resistance (D) Resistance to brittleness

Last Answer : (A) Compressive strength

Description : Mild steel is (A) A low carbon steel (0.05 to 0.3% carbon) (B) Highly resistant to corrosion (as much as stainless steel) (C) A high carbon steel (0.5 to 1.5% carbon) (D) Very poor in strength & ductility

Last Answer : (A) A low carbon steel (0.05 to 0.3% carbon)

Description : Cast iron compared to steel is better in (A) Ductility (B) Fluidity & castability (C) Strength (D) Malleability

Last Answer : (B) Fluidity & castability

Description : The property of material, by which a given amount of energy is absorbed by it without plastic deformation, is called the (A) Resilience (B) Toughness (C) Ductility (D) Impact strength

Last Answer : (A) Resilience

Description : The property of material, by which a given amount of energy is absorbed by it, without plastic deformation, is called (A) Resilience (B) Toughness (C) Ductility (D) Impact strength

Last Answer : (A) Resilience

Description : Normalising of an object does not (A) Refine coarse grain structure obtained during hot working (B) Improve ductility (C) Improve yield strength (D) Improve mechanical properties

Last Answer : (B) Improve ductility