TUBACEX Graduate Engineer Trainee (Get) Interview Questions and Answers

Q1. BE Project related and technical basics. All they want is confidence in you.
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Q2. Tell me about yourself, family background, etc.
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Covers easy technical questions and aptitude questions

Q1. Draw iron carbide diagram
Ans. 
Iron carbide diagram shows the phases of iron and carbon at different temperatures.
• Iron carbide diagram, also known as the Fe-Fe3C diagram, shows the phases of iron and carbon at different temperatures.

• It consists of three main regions: austenite, ferrite, and cementite.

• The diagram helps in understanding the microstructure of steel and its properties.

• The eutectoid point on the diagram represents the composition of stee...read more
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Q2. What are heat treatment processes
Ans. 
Heat treatment processes are methods used to alter the physical and mechanical properties of materials through heating and cooling.
• Heat treatment processes include annealing, tempering, quenching, and normalizing

• Annealing involves heating the material to a specific temperature and then slowly cooling it to relieve internal stresses and increase ductility

• Tempering is a process of reheating the material after hardening t...read more
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Test includes of 4 segments,
Personality, English, Aptitude(Reasoning and mathematics), Technical (Field related).

Q1. Basic Technical questions
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Q2. Questions related to companies interest
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All basic Question from Electrical machine,power systems etc

Q1. All electrical question from electrical machine, power system,control etc.
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Q1. Electrical HOD ASKING QUESTIONS ALL TECHNICAL
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Q1. How blast furnace works ?
Ans. 
Blast furnace is a smelting furnace used to extract iron from iron ore.
• Iron ore, coke, and limestone are added to the top of the furnace.

• Hot air is blown into the bottom of the furnace to create a high temperature.

• The coke reacts with the hot air to produce carbon monoxide, which reduces the iron ore to iron.

• The limestone reacts with impurities in the iron ore to form slag, which is removed from the bottom of the furna...read more
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Q2. What is sinter? And how to make sinter in sinter plant and
Ans. 
Sinter is a high-quality raw material used in blast furnaces. It is made by heating iron ore fines and other materials.
• Sintering is a process of compacting and forming a solid mass of material by heat or pressure without melting it.

• In a sinter plant, iron ore fines, coke breeze, limestone, and other additives are mixed and granulated.

• The granulated mixture is then fed onto a sinter machine, where it is heated to form a...read more
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Q3. What is the different sizes of sinter?
Ans. 
Sinter is a porous material formed by heating a mixture of iron ore fines, limestone, and coke breeze. The size of sinter varies depending on its intended use.
• Sinter is used in the production of iron and steel.

• The size of sinter can range from small pellets to large blocks.

• The size of sinter is determined by the size of the sintering machine used.

• Sinter can be classified into different sizes such as fine, coarse, and l...read more
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Q4. Which iron forms in blast furnace?
Ans. 
The iron formed in blast furnace is pig iron.
• Pig iron is the product of smelting iron ore with coke and limestone in a blast furnace.

• It is a brittle material with high carbon content and contains impurities like sulfur, phosphorus, and silicon.

• Pig iron is further processed to produce steel or cast iron.

• The composition of pig iron varies depending on the quality of the iron ore and the process used in the blast furnace.
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