Ganga Forging Quality Engineer Interview Questions and Answers

Q1. Percentage of chromium in steel?
Ans. 
Chromium content in steel typically ranges from 10-30% depending on the grade and type of steel.
• Chromium is added to steel to improve its corrosion resistance, hardness, and strength.

• Stainless steel typically contains around 10-30% chromium.

• High-chromium steels, such as tool steels, can contain up to 30% chromium.

• Chromium content can vary based on the specific grade and application of the steel.
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Q2. Advantages and Disadvantage of Sulphur in steel?
Ans. 
Sulphur in steel can improve machinability but may reduce ductility and impact strength.
• Advantages: Improved machinability, easier to cut and shape

• Disadvantages: Reduced ductility, impact strength, and toughness

• Sulphur content should be controlled to avoid negative effects on mechanical properties

• Examples: Lead-free cutting steels often contain higher sulphur levels for better machinability
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Q1. Grades of steel and Their Chemical Composition
Ans. 
Different grades of steel have varying chemical compositions to meet specific requirements.
• Grades of steel include carbon steel, alloy steel, and stainless steel.

• Carbon steel typically contains 0.05-2.0% carbon.

• Alloy steel contains additional elements like nickel, chromium, and molybdenum.

• Stainless steel has high chromium content for corrosion resistance.

• Each grade has unique properties based on its chemical compositio
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Q2. Sectional weight of steel for different sizes
Ans. 
Sectional weight of steel varies based on the size of the steel section.
• The sectional weight of steel is calculated by multiplying the volume of the steel section by the density of steel.

• Different sizes of steel sections have different sectional weights.

• For example, a 100mm x 100mm x 10mm steel section will have a different sectional weight compared to a 150mm x 150mm x 12mm steel section.
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Q3. What are the grains and grain structures inside the steel at different temperatures?
Ans. 
Grains in steel change in size and shape at different temperatures, affecting its properties.
• At high temperatures, grains in steel are larger and more irregularly shaped.

• As steel cools, grains become smaller and more uniform, leading to increased strength and hardness.

• Grain boundaries can affect properties like toughness and corrosion resistance.

• Examples: Austenite has smaller grains at lower temperatures, resulting in...read more
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Q1. Improve the work and kazan mechanical
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Q2. Maximum outputs and kazan process
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Q3. Different work and regular work
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Q4. Flow of work and regular process smart work
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Q5. Step ways working in the company
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Q1. Inspection and instruments
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Q2. Previous company work preparation
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Q3. Strength of company
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Q1. About NDT level 2
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Q1. Regarding salary and experience
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Brief explanation of UT, LPT, VT and MT methods.

Q1. What kind of product your company manufacturing?
Ans. 
Our company manufactures high-quality automotive parts for various vehicles.
• Specializes in producing components such as engine parts, suspension systems, and braking systems

• Works closely with automotive manufacturers to meet specific requirements and standards

• Utilizes advanced technology and quality control measures to ensure precision and durability

• Examples: engine pistons, shock absorbers, brake pads
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Q2. Have your company any vacancy for Quality development?
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Q3. Where company located?
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Q1. Your company have any vacancy?
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Q1. What is the chromium percentage in steel?
Ans. 
Chromium percentage in steel varies depending on the type of steel, typically ranging from 10.5% to 30%.
• Chromium is added to steel to improve its corrosion resistance and hardenability.

• Stainless steel typically contains around 10.5-30% chromium.

• Examples of chromium-containing steel include 304 stainless steel (18% chromium) and 420 stainless steel (12% chromium).
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Q2. Sulphur Advantages and Disadvantages in Steel
Ans. 
Sulphur can improve machinability and strength in steel, but can also lead to brittleness and reduced ductility.
• Advantages of sulphur in steel include improved machinability, allowing for easier cutting and shaping of the material.

• Sulphur can also enhance the strength of steel, making it more suitable for certain applications.

• Disadvantages of sulphur in steel include increased brittleness, which can lead to cracking an...read more
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Q1. What are the Grain structures of steel at different temperatures?
Ans. 
Grain structures of steel change at different temperatures affecting its properties.
• At room temperature, steel has a fine grain structure which provides good strength and toughness.

• As temperature increases, the grain size also increases, leading to reduced strength and toughness.

• At high temperatures, steel can have a coarse grain structure which may result in lower mechanical properties.

• Grain refinement techniques like...read more
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Q2. What is the final/finished product temperature of Rebar?
Ans. 
The final/finished product temperature of Rebar is typically room temperature.
• Rebar is typically stored and used at room temperature

• The temperature of Rebar can vary depending on the environment it is stored in

• Rebar is not typically heated or cooled as part of the manufacturing process
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