Bharat Aluminium Company (BALCO) Post Graduate Trainee Interview Questions and Answers

Apti, quant and general

Impact of pollution over environment

Q1. MECHANICAL RELATED
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Q1. GENERAL HR ROUND
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Q1. What is casting
Ans. 
Casting is the process of creating objects by pouring a liquid material into a mold and allowing it to harden.
• Casting involves pouring a material such as metal, plastic, or concrete into a mold

• The material then hardens and takes the shape of the mold

• Common examples of casting include metal casting for manufacturing parts and concrete casting for construction projects
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Q2. What is the difference between drilling and boring
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Drilling is the process of creating a hole using a rotating cutting tool, while boring is the process of enlarging an existing hole.
• Drilling is typically used to create holes in materials, while boring is used to enlarge existing holes.

• Drilling is usually done with a drill bit, while boring is done with a boring tool.

• Drilling is often used in construction and manufacturing, while boring is commonly used in machining pr...read more
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First we need to write aptitude test

It will be subject related questions will be ther for me some questions they asked from gate

Q1. They asked regarding our project
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Q2. Some mechanical stuff
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Q3. Some general topics they asked
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Q1. Mostly on project, rolling , physical metallurgy basics
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Q1. About networks and machines
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Q1. Different types of ore
Ans. 
Ore is a naturally occurring material from which a metal or valuable mineral can be extracted.
• There are various types of ores such as metallic ores, non-metallic ores, ferrous ores, and non-ferrous ores.

• Metallic ores contain metal in raw form such as iron ore, copper ore, and gold ore.

• Non-metallic ores do not contain any metal such as limestone, gypsum, and quartz.

• Ferrous ores contain iron such as hematite and magnetit...read more
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Q2. Firing order in engine
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The firing order in an engine refers to the sequence in which the cylinders fire.
• The firing order is determined by the engine's design and can vary between different types of engines.

• The most common firing order for a four-cylinder engine is 1-3-4-2.

• For a six-cylinder engine, the firing order can be 1-5-3-6-2-4 or 1-4-2-5-3-6, depending on the engine design.

• Knowing the firing order is important for diagnosing engine pr
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Q3. Types of welding and about college project
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