Constantan is an alloy containing
A.Copper and zinc
B.Copper and nickel
C.Lead and zinc
D.Zinc and nickel
E.Lead and copper
A.Copper and zinc
B.Copper and nickel
C.Lead and zinc
D.Zinc and nickel
E.Lead and copper
A.Carbon
B.Oxygen
C.Sodium chloride
D.Lime stone
E.Bauxite
A.Annealing
B.Normalizing
C.Hardening
D.Temperting
E.Carburizing
A.Provide a protective layer
B.Improve resistance to acids
C.Improve resistance to alkalies
D.Increase tensile strength
E.Improve softness and flexibility
A.Amorphous and brittle
B.Soft and ductile
C.Hardenable under rapid cooling
D.Present in abundance in high carbon steel
A.2
B.3
C.6
D.8
E.9
A.Hard
B.Soft
C.Rigid
D.Inelastic
E.Ductile
A.Less than that of ferromagnetic materials
B.Equal to that of ferromagnetic materials
C.Greater than that of ferromagnetic materials
D.Very high as compared to that of ferromagnetic materials
E.Very low as compared to that of ferromagnetic materials
A.Nickel, chromium and vanadium
B.Nickel, copper and vanadium
C.Nickel and copper
D.Nickel and chromium
E.Nickel, lead and zinc