Which of the following is a case hardening process?
The process of inducing carbon to __________ carbon steels in order to give it a hard surface is known as carburising.
Which of the following solids are malleable and ductile?
The approximate height of a blast furnace is
Inconel contains
The iron ore mostly used for the production of pig iron is
Babbit metal is a
Pearlite is a combination offerrite andcementite.
Eutectoid reaction occurs at
Corrosion resistance of steel is increased by adding nickel and chromium.
Sulphur in cast iron
Gamma-iron occurs between the temperature range of
Body centred cubic space lattice is found in
German silver contains
In a crystalline material, atoms are arranged in definite and orderly manner and form.
The delta-iron possesses a body centred cubic space lattice.
A steel alloy containingnickel is called
In a hardening process, the hypo-eutectoid steel is
A carbon steel having Brinell hardness numbershould have ultimate tensile strength closer to
The metal suitable for bearings subjected to heavy loads, is
The percentage carbon content in wrought iron is about
The addition of copper to aluminium possesses maximum strength after heat treatment and age-hardening
The silicon steel is widely used for
Cementite consist of
Connecting rod is, usually, made from
The maximum solubility of carbon in austenite is 1.atC.
The austenitic stainless steel contains
Thermosetting plastics are those materials which
The addition of manganese to aluminium improves corrosion resistance.
The steel widely used for making precision measuring instruments is
Nickel when added to copper improves
Ball bearings are, usually, made from
Which of the following inpurity in cast iron makes it hard and brittle?
In a close packed hexagonal space lattice, there are
The process used for relieving the internal stresses previously set up in the Metal and for increasing the machinability of steel, is
The temperature point at which the change ends on heating the steel is called
The ductility is the property of a material due to which it
Steel containing upto 0.carbon, is known as