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Jindal Stainless Junior Engineer Interview Questions and Answers
19 Interview questions
Hydraulic systems use fluid power to perform work, with electricity often controlling pumps and valves for operation.
Hydraulic systems operate by transmitting force through incompressible fluids, typically oil or water.
Electricity powers hydraulic pumps, which create the pressure needed to move the fluid through the system.
Electric actuators can control valves, allowing for precise movement and operation of hydrau...
Speed control methods for motors include various techniques tailored to different motor types and applications.
1. Voltage Control: Adjusting the supply voltage to control speed. Example: DC motors.
2. Frequency Control: Varying the frequency of the supply for AC motors. Example: Induction motors using VFDs.
3. Field Control: Changing the field current in DC motors to adjust speed. Example: Separately excited DC moto...
Contactors are used for high power applications, while relays are for low power control circuits.
Contactors are designed to switch larger loads, typically above 10A.
Relays are used for lower power applications, usually below 10A.
Contactors often have auxiliary contacts for additional control.
Relays are generally smaller and used for signal switching.
Example: A contactor might control a motor, while a relay could c...
A Buchholz relay is a safety device used in transformers to detect faults and prevent damage.
It is installed in the oil-filled transformers to monitor gas accumulation.
The relay operates on the principle of gas detection; gas is generated during faults.
When gas accumulates, it triggers the relay to operate, indicating a fault.
It can detect both slow and fast faults, providing early warning.
Example: If a transforme...
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A transformer operates on electromagnetic induction to transfer electrical energy between circuits at different voltage levels.
Consists of primary and secondary coils wound around a magnetic core.
Works on the principle of Faraday's law of electromagnetic induction.
When alternating current flows through the primary coil, it creates a magnetic field.
This magnetic field induces a voltage in the secondary coil.
Used in...
Database normalization is a process to organize data to reduce redundancy and improve data integrity.
Normalization involves dividing a database into tables and defining relationships between them.
There are several normal forms (1NF, 2NF, 3NF, etc.) that guide the normalization process.
1NF requires that all columns contain atomic values; for example, a 'Phone Numbers' column should not contain multiple numbers.
2NF ...
A stress-strain curve shows the relationship between stress (force applied) and strain (deformation) in a material.
Stress is plotted on the y-axis and strain on the x-axis
The curve typically consists of an elastic region, yielding point, plastic region, and ultimate failure point
Materials like steel have a linear elastic region followed by a plastic region before failure
HRC to BHN conversion is possible using a conversion chart or formula.
HRC (Rockwell Hardness C) and BHN (Brinell Hardness Number) are two different hardness scales used to measure the hardness of materials.
To convert HRC to BHN, you can use a conversion chart or the following formula: BHN = (HRC - 13.3) * 10.4.
For example, if the HRC value is 50, the corresponding BHN value would be (50 - 13.3) * 10.4 = 370.8.
Our company uses multiple types of furnaces for different purposes.
Electric furnaces are used for heating and melting metals.
Gas furnaces are used for heating and drying processes.
Induction furnaces are used for melting and casting metals.
Muffle furnaces are used for high-temperature applications like annealing and sintering.
Box furnaces are used for heat treating and laboratory applications.
Stress-strain relationship is a graphical representation of how a material deforms under stress.
Stress is the force applied per unit area, while strain is the resulting deformation of the material.
The stress-strain curve typically consists of elastic, plastic, and fracture regions.
Elastic region: material returns to its original shape when stress is removed.
Plastic region: material undergoes permanent deformation.
...
Jindal Stainless Junior Engineer Interview Experiences
22 interviews found
Anonymous
(1 Question)
- Q1. Can you tell me about yourself?
- Ans.
I am a passionate Junior Engineer with a strong foundation in engineering principles and hands-on experience in project development.
Educational Background: Graduated with a degree in Mechanical Engineering from XYZ University, where I excelled in design projects.
Internship Experience: Completed an internship at ABC Corp, where I assisted in the development of a new product line, improving efficiency by 15%.
Technical Sk...
Selected
I appeared for an interview in Sep 2024.
(1 Question)
- Q1. What is database normalization
- Ans.
Database normalization is a process to organize data to reduce redundancy and improve data integrity.
Normalization involves dividing a database into tables and defining relationships between them.
There are several normal forms (1NF, 2NF, 3NF, etc.) that guide the normalization process.
1NF requires that all columns contain atomic values; for example, a 'Phone Numbers' column should not contain multiple numbers.
2NF elimi...
Satish Grewal
I applied via Campus Placement
(3 Questions)
- Q1. Theory of machine thermodynamics
- Ans.
Theory of machine thermodynamics involves the study of energy transfer and conversion in mechanical systems.
It focuses on the relationship between heat, work, and energy in machines
It includes topics like heat engines, refrigeration, and power cycles
Understanding thermodynamics helps in designing efficient machines
- Q2. Stress strain completely defined with diagram
- Ans.
Stress-strain relationship is a graphical representation of how a material deforms under stress.
Stress is the force applied per unit area, while strain is the resulting deformation of the material.
The stress-strain curve typically consists of elastic, plastic, and fracture regions.
Elastic region: material returns to its original shape when stress is removed.
Plastic region: material undergoes permanent deformation.
Fract...
- Q3. Strength of material
- Ans.
Strength of material refers to the ability of a material to withstand applied forces without failing.
Strength of material is typically measured in terms of tensile strength, compressive strength, shear strength, and yield strength.
Different materials have different strengths - for example, steel is known for its high tensile strength, while concrete has high compressive strength.
Factors such as material composition, ma...
I applied via LinkedIn
Basic Questions about Work , time , Compound interest and in Technical round they asked about thermodynamics
(1 Question)
- Q1. What is your salary expectation, why you want to join this company , Would you be able to work for more than 8 hours
Debnath Banerjee
(1 Question)
- Q1. Basic chemistry knowledge
Interview Preparation Tips
(1 Question)
- Q1. Gearbox ratio of cooling tower
- Ans.
The gearbox ratio of a cooling tower determines the speed at which the fan operates relative to the motor.
The gearbox ratio is calculated by dividing the number of teeth on the fan gear by the number of teeth on the motor gear.
For example, if the fan gear has 20 teeth and the motor gear has 40 teeth, the gearbox ratio would be 0.5.
A higher gearbox ratio means the fan will rotate slower than the motor, while a lower rat...
Choudhary Manjeet
I applied via Recruitment Consulltant and was interviewed in May 2023. There were 5 interview rounds.
(1 Question)
- Q1. 5S , kaizen, 7QC tool, Poka yoke, 3M
(1 Question)
- Q1. 5S , kaizen, 7QC tools, Poka Yoke, 3M
A comprehensive and technique to judge the sustability of an individual and his appropriatenses for t job
(1 Question)
- Q1. Quality assurance related questions
Selected
I applied via Campus Placement and was interviewed before May 2023. There was 1 interview round.
(2 Questions)
- Q1. Draw stress strain curve
- Ans.
A stress-strain curve shows the relationship between stress (force applied) and strain (deformation) in a material.
Stress is plotted on the y-axis and strain on the x-axis
The curve typically consists of an elastic region, yielding point, plastic region, and ultimate failure point
Materials like steel have a linear elastic region followed by a plastic region before failure
- Q2. Situation with boss
Interview Preparation Tips
Selected
I appeared for an interview in Jun 2023, where I was asked the following questions.
- Q1. Explain about what is the difference between Power circuit and control circuit. And also explain about Difference between Proxy and limit switch..
- Ans.
Power circuits supply energy, while control circuits manage and regulate the operation of devices.
Power circuits handle high voltage and current, e.g., electrical distribution systems.
Control circuits operate at lower voltage, e.g., relay control systems.
Power circuits are responsible for driving motors and heavy loads.
Control circuits use sensors and switches to control the operation of power circuits.
Example of power...
- Q2. Which Method of speed control can be used in motor and its types …
- Ans.
Speed control methods for motors include various techniques tailored to different motor types and applications.
1. Voltage Control: Adjusting the supply voltage to control speed. Example: DC motors.
2. Frequency Control: Varying the frequency of the supply for AC motors. Example: Induction motors using VFDs.
3. Field Control: Changing the field current in DC motors to adjust speed. Example: Separately excited DC motors.
4....
- Q3. Explain about DBR and it’s uses and what is breaking…
- Ans.
DBR (Dynamic Brake Resistor) is used in electric drives to dissipate excess energy during braking, enhancing safety and performance.
DBR helps in converting kinetic energy into heat during braking, preventing damage to the system.
It is commonly used in electric trains and elevators to manage energy efficiently.
For example, in a train, DBR allows for smooth deceleration without overloading the power system.
DBR systems ca...
- Q4. Explain about difference between contactor and relay
- Ans.
Contactors are used for high power applications, while relays are for low power control circuits.
Contactors are designed to switch larger loads, typically above 10A.
Relays are used for lower power applications, usually below 10A.
Contactors often have auxiliary contacts for additional control.
Relays are generally smaller and used for signal switching.
Example: A contactor might control a motor, while a relay could contro...
- Q5. Explain about how hyd system works and what is the role of electricity for this operation..
- Ans.
Hydraulic systems use fluid power to perform work, with electricity often controlling pumps and valves for operation.
Hydraulic systems operate by transmitting force through incompressible fluids, typically oil or water.
Electricity powers hydraulic pumps, which create the pressure needed to move the fluid through the system.
Electric actuators can control valves, allowing for precise movement and operation of hydraulic m...
(4 Questions)
- Q1. Drawing, panel mentnace, VFD
- Q2. Electrical instrumation
- Q3. Eot crane , VFD, forunce
- Q4. Eot cranes, VFD, forunce
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Associate Manager
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