Engineering Materials When filing or machining cast iron makes our hands black, then it shows that ________ is present in cast iron. Both A and B None of these Cementite Free graphite Both A and B None of these Cementite Free graphite ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The unit cells Have the same orientation and their similar faces are parallel May be defined as the smallest parallelepiped which could be transposed in three coordinate directions to build up the space lattice Contain the smallest number of atoms which when taken together have all the properties of the crystals of the particular metal All of these Have the same orientation and their similar faces are parallel May be defined as the smallest parallelepiped which could be transposed in three coordinate directions to build up the space lattice Contain the smallest number of atoms which when taken together have all the properties of the crystals of the particular metal All of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials In compression, a prism of brittle material will break By forming a bulge In direction perpendicular to application of load By crushing into thousands of pieces By shearing along oblique plane By forming a bulge In direction perpendicular to application of load By crushing into thousands of pieces By shearing along oblique plane ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Grey cast iron has Low compressive strength High tensile strength Carbon in the form of free graphite All of these Low compressive strength High tensile strength Carbon in the form of free graphite All of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials German silver is an alloy of Refined silver Nickel and copper Silver and some impurities Nickel, Copper and zinc Refined silver Nickel and copper Silver and some impurities Nickel, Copper and zinc ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following statement is true about brittle fracture? High temperature and low strain rates favour brittle fracture Cup and cone formation is characteristic for brittle materials Many metals with hexagonal close packed (H.C.P) crystal structure commonly show brittle fracture Brittle fracture is always preceded by noise High temperature and low strain rates favour brittle fracture Cup and cone formation is characteristic for brittle materials Many metals with hexagonal close packed (H.C.P) crystal structure commonly show brittle fracture Brittle fracture is always preceded by noise ANSWER DOWNLOAD EXAMIANS APP
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