All of the following are magnetic materials EXCEPT:
A.Nickel
B.Cobalt
C.Iron
D.Zinc
E.Cast iron
Category: Metallurgy Mcqs
The crystal structure of gamma iron is
A.BCC
B.FCC
C.ACP
D.Cubic
E.Combination of all above
In a diamagnetic material the effect of an applied magnetic field is that
A.A net dipole moment is induced in the material
B.There is a net reduction in flux density
C.The induced magnetism is in opposition to applied field
D.All of the above
E.None of the above
Which of the following is high speed steel?
A.T 55 Ni Cr 65 Mo 30
B.T 75 W 18 Co 6 Cr 4
C.T 10 Cr 5 Mo 75 V 23
D.T 75 W 18 Co 6 Cr 4 V 1 Mo 75
E.None of the above
Which of the following is closest to the purest form of iron
A.Wrought iron
B.Pig iron
C.Mild steel
D.Grey cast iron
E.Nodular cast iron
Eutectoid steel has a structure of
A.Sorbite
B.Nickel
C.Martensite
D.Bainite
E.A combination of all above
Cold worked components are generally subjected to
A.Annealing
B.Hardening
C.Shot peening
D.Sherodising
E.Tempering
