Physical Metallurgy Previous Year Question Papers with Solutions Pdf - 1
Question: 1
Which is the hardest structure that appears on iron carbon equilibrium diagram?
(A) Austenite
(B) Cementite
(C) Martensite
(D) Pearlite
Ans: B
Cementite
Question: 2
Pearlite phase in steel comprises of the alternate layers of
(A) Martensite and ferrite
(B) Martensite and cementite
(C) Ferrite and cementite
(D) Bainite and cementite
Ans: C
Ferrite and cementite
Question: 3
The super saturated solution of carbon in _____ iron is known as martensite.
(A) Alpha
(B) Beta
(C) Gamma
(D) None of these
Ans: A
Alpha
Question: 4
Austenitic stainless steel is
(A) Magnetic in annealed condition
(B) Hardenable by heat treatment
(C) Hardenable only by cold working
(D) Magnetic in annealed condition
Ans: C
Hardenable only by cold working
Question: 5
Solid solution of carbon in gamma iron is called
(A) Austenite
(B) Cementite
(C) Leduburite
(D) Iron carbide
Ans: A
Austenite
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