100) Which is hardest

Answer is:

Diamond

Engineering Materials MCQ with Answers

101) In a close packed hexagonal space lattice, there are

nine atoms out of which eight atoms are located at the corners of the cube and one atom at its centre

twelve atoms, all of which are located at the twelve corners of a hexagonal prism

fourteen atoms out of which eight atoms are located at the corners of the cube and six atoms at the centers of six faces

none of the above

Answer is:

none of the above

102) The type of space lattice found in alpha-iron is

Answer is:

body centered cubic space lattice

103) The type of space lattice found in gamma-iron is

Answer is:

face centered cubic space lattice

104) body centered cubic space lattice is found in

Answer is:

alpha-iron, tungsten, chromium and molybdenum

Explanation:

Body-centered cubic space lattice is found in Alpha iron, tungsten, chromium and molybdenum Body-centered cubic lattice (bcc or cubic-I), like all lattices, has lattice points at the eight corners of the unit cell plus additional points at the center of the cell.

Engineering Materials MCQ with Answers

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100) Which is hardest

Diamond

Engineering Materials MCQ with Answers

Related Engineering Materials MCQ with Answers

101) In a close packed hexagonal space lattice, there are

none of the above

102) The type of space lattice found in alpha-iron is

body centered cubic space lattice

103) The type of space lattice found in gamma-iron is

face centered cubic space lattice

104) body centered cubic space lattice is found in

alpha-iron, tungsten, chromium and molybdenum

Engineering Materials MCQ with Answers