POSCO MAHARASHTRA STEEL Junior Engineer Interview Questions and Answers

Q1. What are tha fuction of otto cycle and Diesel Cycle?
Ans. 
Otto cycle is used in gasoline engines and Diesel cycle is used in diesel engines.
• Otto cycle is a constant volume cycle used in gasoline engines.

• Diesel cycle is a constant pressure cycle used in diesel engines.

• Otto cycle has a higher compression ratio compared to Diesel cycle.

• Otto cycle has a spark plug for ignition while Diesel cycle uses compression ignition.

• Both cycles involve four processes: intake, compression, po...read more
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Q2. Different b/w Stress and Strain?
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Stress is the force applied to a material, while strain is the resulting deformation or change in shape.
• Stress is a measure of the internal forces within a material, while strain is the measure of the deformation or change in shape.

• Stress is typically measured in units of force per unit area (such as N/m^2 or Pa), while strain is a dimensionless quantity.

• Stress can cause a material to deform or break, while strain is t...read more
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Q3. How many types of Ramming mass?
Ans. 
There are two main types of Ramming mass: acidic and basic.
• Acidic Ramming Mass: used for lining induction furnaces and arc furnaces.

• Basic Ramming Mass: used for lining steel ladles and EAF (Electric Arc Furnace).
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Q4. How Many Types of Steel?Explained tha percentage of Steel?
Ans. 
There are several types of steel, each with different properties and uses. The percentage of steel in a particular alloy can vary.
• Types of steel include carbon steel, alloy steel, stainless steel, tool steel, and high-speed steel.

• The percentage of steel in an alloy can range from as low as 0.2% to as high as 2.1% depending on the type of steel and its intended use.

• For example, carbon steel typically contains around 0.2...read more
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Q5. Explain Thermodynamics Law 1st 2nd and 3 rd?
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First law states energy cannot be created or destroyed, second law states entropy always increases, third law states entropy approaches zero at absolute zero.
• First Law: Energy cannot be created or destroyed, only transferred or converted. Example: A car engine converts fuel into mechanical energy.

• Second Law: Entropy of an isolated system always increases over time. Example: Heat always flows from hot to cold objects.

• Th...read more
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Q1. Electrical basis questions. As that ckt. diagrams of motor satr and delta connection control & power supply.
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Q2. Motor megger value & cable size as per rating of motor.
Ans. 
Motor megger value should be at least twice the rated voltage of the motor. Cable size should be selected based on the full load current of the motor.
• Motor megger value should be at least 2 times the rated voltage of the motor to ensure insulation integrity.

• Cable size should be selected based on the full load current of the motor to prevent overheating and voltage drop.

• For example, for a motor rated at 400V, the megger...read more
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Q3. OLR value of motor as per rating of motor & MPCB rating.
Ans. 
OLR value of a motor is determined by the rating of the motor and the MPCB rating.
• OLR value is the Overload Relay value, which is used to protect the motor from overload conditions.

• The OLR value is typically set based on the rating of the motor and the rating of the Motor Protection Circuit Breaker (MPCB).

• For example, if a motor has a rating of 5 HP and the MPCB rating is 10A, the OLR value would be calculated accordin...read more
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Q1. Basic questions like Current Salary Expected Salary, Why you want to leave.
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Q1. Basic Domain questions
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Q1. HOD's basic technical questions
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Q1. Salary Negotiation ,
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Q1. Product oriented process
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Q2. Machine name & capacity of current company
Ans. 
The machine name at my current company is XYZ-2000 and it has a capacity of 500 units per hour.
• Machine name: XYZ-2000

• Capacity: 500 units per hour
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Q1. Job related question??
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Q2. Jobe role in previous company??
Ans. 
In my previous role, I led engineering projects, collaborated with cross-functional teams, and optimized processes for efficiency.
• Led a team of engineers to develop a new software application, resulting in a 30% increase in user engagement.

• Implemented Agile methodologies, which improved project delivery times by 25%.

• Collaborated with product management to define project scope and requirements, ensuring alignment with b...read more
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What you prepared before starting the project.

Q1. Salary discussion.
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