The solid solution carbon in alpha iron obtained on cooling of 0.2% carbon steel which have been heated above the third critical point is called
A.Ferrite
B.Pearlite
C.Austenite
D.Cementite
Category: Engineering Materials Mcqs
In order to measure/detect materials by non-destructive testing the method generally used is
A.Acoustic emission
B.Infrared radiometer
C.Liquid crystallography
D.Thermochemic point
E.Mossbanser effect
The product of a cupola known as
A.Pig iron
B.Cast steel
C.Steel
D.Cast iron
E.Malleable iron
Bush bearings is
A.Phosphor bronze
B.Aluminium bronze
C.Mild steel
D.White metal alloy
E.None of the above
In compression, a prism of brittle material will break
A.Into large number of pieces
B.By forming a bulge
C.By shearing slong oblique plane
D.In a direction along the direction of load
E.None of the above
Which of the following does not contain copper as one of the alloying elements?
A.Monel metal
B.Perminivar
C.Nichrome
D.Manganin
E.All of the above
Plastic deformation which is carried out in a temperature region and over a time interval such that the strain hardening is not relieved is known as
A.Hot work
B.Cold work
C.Annealing
D.Bauschinger effect
E.None of the above
For heavy loads in aircraft bearings the material used with lead to reduce the risk of scizure is
A.Iron
B.Silver
C.Copper
D.Tin
E.Zinc
Silicon steel is widely used in
A.Electrical industry
B.Chemical industry
C.For making leaf prings
D.For nuts and bolts
E.For cutting tools
In normalising steel is heated 40-50 C
A.Above room temperature
B.Above the upper transformation range
C.Above the lower transformation range
D.Below the upper transformation range
E.Below the lower transformation range
