Electrochemical corrosion occurs
A. Where the liquid electrolytes containing free ions are present
B. Only in alloys
C. Only in pure metals
D. Due to direct chemical action of metal with oxygen
Answer: Option A
A. Where the liquid electrolytes containing free ions are present
B. Only in alloys
C. Only in pure metals
D. Due to direct chemical action of metal with oxygen
Answer: Option A
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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