Out of the following, the lowest packing of atoms exists in __________ crystal lattice structure.
A. Hexagonal close, packed (hcp)
B. Face centred cubic (fcc)
C. Body centred cubic (bcc)
D. Simple cubic
Answer: Option D
A. Hexagonal close, packed (hcp)
B. Face centred cubic (fcc)
C. Body centred cubic (bcc)
D. Simple cubic
Answer: Option D
Which of the following will resist maxi-mum shock & vibration without cracking?
A. Grey cast iron
B. White cast iron
C. Malleable iron
D. Graphite
A. Pulverised fuel
B. Travelling grate stoker firing
C. Circulating fluidised bed
D. Fluidised bed
Isotropic materials have the same __________ in all directions.
A. Induced stresses
B. Density
C. Elastic properties
D. Thermal properties
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