Nalco Vocational Trainee Interview Questions and Answers

Q1. Why you doing your internship in this domain?
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Q2. Introduction yourself
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Aptitude ,reasoning,english questions of mcq type

Q1. What is steel ,what is cast iron,difference between steel and cast iron
Ans. 
Steel and cast iron are both alloys of iron, but with different carbon content and properties.
• Steel is an alloy of iron and carbon, with a carbon content of less than 2%. It is stronger, more ductile, and more malleable than cast iron.

• Cast iron is an alloy of iron, carbon, and silicon, with a carbon content of 2-4%. It is more brittle and less malleable than steel.

• Steel is used in construction, machinery, and tools, wh...read more
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Q2. What are the laws of thermodynamics,what is entropy
Ans. 
The laws of thermodynamics describe the behavior of energy in a system. Entropy is a measure of the disorder or randomness in a system.
• The first law states that energy cannot be created or destroyed, only transferred or converted.

• The second law states that the total entropy of a closed system will always increase over time.

• The third law states that as temperature approaches absolute zero, the entropy of a system approa...read more
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