Engineering Materials In a hardening process, the hypo-eutectoid steel is Heated below or closes to the lower critical temperature and then cooled slowly Heated from 30°C to 50°C above the upper critical temperature and then cooled in still air Heated from 30°C to 50°C above the upper critical temperature and then cooled suddenly in a suitable cooling medium Heated from 30°C to 50°C above the upper critical temperature and then cooled slowly in the furnace Heated below or closes to the lower critical temperature and then cooled slowly Heated from 30°C to 50°C above the upper critical temperature and then cooled in still air Heated from 30°C to 50°C above the upper critical temperature and then cooled suddenly in a suitable cooling medium Heated from 30°C to 50°C above the upper critical temperature and then cooled slowly in the furnace ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Cementite consist of 13% ferrite and 87% cementite 6.67% carbon and 93.33% iron 13% cementite and 87% ferrite 13% carbon and 87% ferrite 13% ferrite and 87% cementite 6.67% carbon and 93.33% iron 13% cementite and 87% ferrite 13% carbon and 87% ferrite ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials When elements like nickel, chromium, copper and molybdenum are added to the molten cast iron, it produces Alloy cast iron Malleable cast iron Nodular cast iron White cast iron Alloy cast iron Malleable cast iron Nodular cast iron White cast iron ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials German silver contains 1% silver 2% silver No silver 5% silver 1% silver 2% silver No silver 5% silver ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The unit cells All of these Have the same orientation and their similar faces are parallel Contain the smallest number of atoms which when taken together have all the properties of the crystals of the particular metal May be defined as the smallest parallelepiped which could be transposed in three coordinate directions to build up the space lattice All of these Have the same orientation and their similar faces are parallel Contain the smallest number of atoms which when taken together have all the properties of the crystals of the particular metal May be defined as the smallest parallelepiped which could be transposed in three coordinate directions to build up the space lattice ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The blade of a power saw is made of High speed steel Malleable cast iron Stainless steel Boron steel High speed steel Malleable cast iron Stainless steel Boron steel ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS