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

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

1 Answer

Answer :

(A) Brittle
by

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

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(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 traces its origins back to the latin lux, meaning "light", and generally implies radiance, gloss, or brilliance. Metals in general have high electrical conductivity, high thermal conductivity, and high density. Typically they are malleable and ductile, deforming -under stress without cleaving.

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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

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If a metal can be drawn into wires relatively easily it is called: w) malleable x) ductile y) extractive z) tactile

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Which of the following is prone to cup and cone fracture? (A) Cast iron (B) Soft brass (C) Round specimen of ductile metal (D) Flat tensile specimen of ductile metal

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'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

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

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

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

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.

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

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

Maximum total strain energy theory is applicable to (a) Ductile materials (b) Brittle materials (c) Composite materials (d) None

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Maximum total strain energy theory is applicable to (a) Ductile materials (b) Brittle materials (c) Composite materials (d) None

Description : Maximum total strain energy theory is applicable to (a) Ductile materials (b) Brittle materials (c) Composite materials (d) None

Last Answer : (b) Brittle materials

Maximum principal strain theory is applicable to (a) Ductile materials (b) Brittle materials (c) Composite materials (d) None

Description : Maximum principal strain theory is applicable to (a) Ductile materials (b) Brittle materials (c) Composite materials (d) None

Last Answer : (b) Brittle materials

Maximum shear stress theory is applicable to (a) Ductile materials (b) Brittle materials (c) Composite materials

Description : Maximum shear stress theory is applicable to (a) Ductile materials (b) Brittle materials (c) Composite materials

Last Answer : (a) Ductile materials

Maximum principal stress theory is applicable to (a) Ductile materials (b) Brittle materials (c) Composite materials (d) None

Description : Maximum principal stress theory is applicable to (a) Ductile materials (b) Brittle materials (c) Composite materials (d) None

Last Answer : (b) Brittle materials

What Is Ductile-brittle Transition Temperature?

Description : What Is Ductile-brittle Transition Temperature?

Last Answer : It is the temperature below which the tendency of a material to fracture increases rather than forming. Below this temperature the material loses its ductility. It is also called Nil Ductility Temperature

Which Theories Of Failure Are Used For? (a) Ductile Materials (b) Brittle Materials?

Description : Which Theories Of Failure Are Used For? (a) Ductile Materials (b) Brittle Materials?

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

List At Least Two Factors That Promote The Transition From Ductile To Brittle Fracture?

Description : List At Least Two Factors That Promote The Transition From Ductile To Brittle Fracture?

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

Distinguish Between Brittle Fracture And Ductile Fracture?

Description : Distinguish Between Brittle Fracture And Ductile Fracture?

Last Answer : In brittle fracture, crack growth is up to a small depth of the material. In ductile fracture large amount of plastic deformation is present to a higher depth.

Charpy impact tests showing a rough torn surface after the completed test, this would indicate which type of failure? a) Fatigue b) Ductile c) Fatigue to ductile d) Brittle

Description : Charpy impact tests showing a rough torn surface after the completed test, this would indicate which type of failure? a) Fatigue b) Ductile c) Fatigue to ductile d) Brittle

Last Answer : b) Ductile

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

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

Last Answer : d) Soft

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

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

Last Answer : d) Hard

'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

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 : has higher elasticity