Protection of ship hulls against sea water corrosion is done by coating with zinc because of the fact that zinc compared to iron is
A. Reduced preferentially
B. Cheaper
C. Oxidised preferentially
D. Lighter
Answer: Option C
A. Reduced preferentially
B. Cheaper
C. Oxidised preferentially
D. Lighter
Answer: Option C
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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