Electrometallurgy is not involved in the extraction of __________ from its ore.
A. Aluminium
B. Tin
C. Lead
D. Both B & C
Answer: Option D
A. Aluminium
B. Tin
C. Lead
D. Both B & C
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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