If a medium carbon hardened steel shows pearlite structure it may be concluded that
A.Steel contains impurities
B.Steel has been slowly cooled in furnace
C.Steel has been quenched in oil
D.Steel has been quenched in water
Category: Metallurgy Mcqs
Which of the following material is generally not used as deoxidiser for producing killed steel?
A.Copper
B.Ferro-silicon
C.Ferro-manganese
D.Aluminium
E.All of the above
A solder consists of
A.Lead and tin
B.Tin and white metal
C.Zinc and lead
D.Zinc and tin
E.Tin and antimony
Which of the following is a non-destructive test?
A.Charpy test
B.Izod Impact test
C.Tensile test
D.Cupping test
E.X-ray test
Austenitic stainless steels contain chromium and nickel in amounts required to assure that even at room temperatures, the steels retain their crystalline structures, which are
A.Face centred cubic
B.Diamond cubic
C.Hexagonal closed-packed
D.Partly amorphous
Th phenomenon of emf development between two diferent metals placed in contact is known as
A.Seeback effect
B.Thomson effect
C.Peltier effect
D.Kelvin effect
E.Thermocouple effect
Mild steel has the structure of
A.FCC
B.BCC
C.HCC
D.Cubic
E.Orthorhombic
Percentage of carbon in mild steel is
A.0.010 to 0.025
B.0.10 to 0.25
C.0.8 to 0.85
D.1.0 to 1.25
E.3.0 to 4.50
For nitriding, the nitrogen is provided by
A.Heated air
B.Ionised air
C.Ammonia
D.Nitrous oxide
E.Nitric acid
Which of the following material does not have body centred cubic structure?
A.Vanadium
B.Potassium
C.Lithium
D.Zirconium
E.Chromium
