When iron is rusted, it is__________________?
When iron is rusted, it is__________________?
A. Converted to a fine powder
B. Reduced
C. Oxidised
D. None of these
Similar Posts
______________ is not a case hardening process?
______________ is not a case hardening process?A. Carburising
B. Nitriding
C. Cyaniding
D. AnnealingWhich of the following metals in not used for coating of the base metal to guard it against corrosion ?
Which of the following metals in not used for coating of the base metal to guard it against corrosion ?A. Lead
B. Cadmium
C. Magnesium
D. AluminiumLead alone is not used in storing equipment, because it________________?
Lead alone is not used in storing equipment, because it________________?A. Is very costly
B. Corrodes easily
C. Is having low creep strength
D. None of theseThe fermenter used for the production of ethyl alcohol from molasses is made of________________?
The fermenter used for the production of ethyl alcohol from molasses is made of________________?A. Wood
B. Concrete
C. Copper bearing steel
D. PorcelainSilicon percentage in iron castings to have maximum hardness should be about__________________?
Silicon percentage in iron castings to have maximum hardness should be about__________________?A. 0.3
B. 0.5
C. 0.8
D. 2.5Gunmetal and bronze are not corroded by the action of
Question: Gunmetal and bronze are not corroded by the action of
[A].wet chlorine. [B].
synthetic detergent solution. [C].
hydrochloric acid (10%). [D].
nitric acid (< 25%). Answer: Option B
Explanation:
No answer description available for this question.