The main reducing agent in iron blast furnace is
A. Carbon dioxide
B. Carbon monoxide
C. Oxygen
D. Air
Answer: Option B
A. Carbon dioxide
B. Carbon monoxide
C. Oxygen
D. Air
Answer: Option B
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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