CHEMICAL ENGINEERING

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Question: Maximum consumption of lead is in the manufacture of [A]. storage batteries. [B]. solder alloys. [C]. electric cable sheathing. [D]. lead lined vessels. Answer: Option A Explanation: No answer description available for this question.

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Question: Lead [A]. is the hardest metal in common use. [B]. is the lightest metal in common use. [C]. can not be scratched by finger nails. [D]. can not be work hardened. Answer: Option D Explanation: No answer description available…

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Question: Zinc is not used [A]. for producing zinc base die casting alloys. [B]. in its oxide form as pigments. [C]. as anode for corrosion prevention in boiler. [D]. as an alloying element in various bronzes. Answer: Option D Explanation:…

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Question: Zinc is highly __________ at room temperature. [A]. ductile [B]. resistant to atmospheric corrosion [C]. malleable [D]. brittle Answer: Option B Explanation: No answer description available for this question.

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Question: Maximum consumption of zinc is in [A]. alloying [B]. galvanising [C]. utensil manufacture [D]. electrical industry Answer: Option B Explanation: No answer description available for this question.

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Question: As the impurities are oxidised, the melting point of iron [A]. decreases. [B]. remains unchanged. [C]. increases. [D]. may increase or decrease ; unpredictable. Answer: Option C Explanation: No answer description available for this question.

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Question: Cast iron is having very high [A]. proximity between its elastic limit and ultimate breaking strength. [B]. ductility. [C]. tensile strength. [D]. all (a), (b) and (c). Answer: Option A Explanation: No answer description available for this question.

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Question: Wrought iron is having very high [A]. hardness. [B]. strength. [C]. corrosion resistance. [D]. susceptibility to changes in its properties by heat treatment. Answer: Option C Explanation: No answer description available for this question.