Hardening of steel is not possible, unless it is heated __________ critical point. (A) Above the highest (B) Above the lowest (C) Between the first & second (D) Between the second & third

Hardening of steel is not possible, unless it is heated __________ critical point.
(A) Above the highest
(B) Above the lowest
(C) Between the first & second
(D) Between the second & third
by

1 Answer

Answer :

(B) Above the lowest
by

Related questions

Hardening of steel is not possible unless it is heated __________ critical point. (A) Above the highest (B) Above the lowest (C) Between the first & second (D) Between the second & third

Description : Hardening of steel is not possible unless it is heated __________ critical point. (A) Above the highest (B) Above the lowest (C) Between the first & second (D) Between the second & third

Last Answer : (B) Above the lowes

Heating the Hypo-eutectoid steels to 30°C above the upper critical temperature line, soaking at that temperature and then cooling slowly to the room temperature to form a pearlite & ferrite structure is called (A) Tempering (B) Hardening (C) Annealing (D) Normalising

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Last Answer : Option C

An object at rest will remain at rest and an object in motion will remain in motion until and unless it is acted upon by an external force. This is Newton's – (1) First law (2) Second law (3) Third law (4) Fourth law

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Steel will respond to hardening by heat treatment processes, only when the minimum carbon content in it is __________ percent. (A) 0.02 (B) 0.2 (C) 0.35 (D) 0.5

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Last Answer : (B) 0.2

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Last Answer : (A) Highest possible

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__________ 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

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My first is in wield, sever bones and marrow. My second is in blade, forged in cold steel. My third is in arbalest, and also in arrows. My fourth is in power, plunged through a shield. My fifth is in honour, and also in vows My last will put an end to it all.What am I? -Riddles

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Last Answer : A weapon!

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