Trainee Production Engineer

30+ Trainee Production Engineer Interview Questions and Answers

Updated 1 Aug 2024

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Q1. What was your very first engineering design?

Ans.

My first engineering design was a simple wooden toy car.

  • I designed and built a wooden car using scrap wood and nails.

  • The car had four wheels and a simple body shape.

  • I painted the car with bright colors and added a small flag on top.

  • I was proud of my creation and played with it for hours.

Q2. What is bearing ?..it's types. ? Grinding process ,. Honning?

Ans.

Bearings are machine elements that reduce friction between moving parts. Types include ball, roller, and plain bearings. Grinding and honing are processes used to improve bearing surfaces.

  • Bearings reduce friction between moving parts

  • Types of bearings include ball, roller, and plain bearings

  • Grinding is a process used to improve the surface finish of a bearing

  • Honing is a process used to improve the geometry of a bearing

  • Examples of bearings include those used in automobiles, air...read more

Trainee Production Engineer Interview Questions and Answers for Freshers

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Q3. Modes of heat transfer? Valves and it's types Distillation Azeotropic distillation Draw any P&ID diagram? What is Fouriers law? Material balance Boiling point of methanol and boiling point of fractional distill...

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Ans.

Modes of heat transfer include conduction, convection, and radiation. Valves types include gate, globe, ball, and butterfly. Distillation is a separation process. Azeotropic distillation is a special type of distillation. P&ID diagrams show process flow. Fourier's law relates to heat transfer. Material balance ensures conservation of mass. Boiling point of methanol is 64.7°C. Boiling point of crude oil products varies. Process control involves monitoring and adjusting process...read more

Q4. What is stress, strain, torque, and horsepower?

Ans.

Stress is the force applied per unit area, strain is the deformation caused by stress, torque is the rotational force, and horsepower is the unit of power.

  • Stress is the force applied to an object per unit area, measured in units of pressure such as Pascals or pounds per square inch.

  • Strain is the deformation caused by stress, measured as the change in length or shape of an object relative to its original size.

  • Torque is the rotational force applied to an object, measured in uni...read more

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Q5. Types of dryer, anology between heat and mass transfer, multi effect evaporator

Ans.

Types of dryers include tray dryers, rotary dryers, fluidized bed dryers. Heat and mass transfer are analogous processes. Multi effect evaporator uses multiple stages to efficiently evaporate liquids.

  • Types of dryers: tray dryers, rotary dryers, fluidized bed dryers

  • Heat and mass transfer are analogous in that both involve the movement of energy or particles from one place to another

  • Multi effect evaporator uses multiple stages to evaporate liquids, with each stage utilizing the...read more

Q6. Functional tes ring on steering gear box?

Ans.

Functional testing on steering gear box is essential for ensuring its proper functioning.

  • Functional testing involves testing the steering gear box under normal operating conditions.

  • It helps to identify any defects or malfunctions in the steering gear box.

  • The testing process involves simulating different driving conditions and checking the response of the steering gear box.

  • Examples of tests include checking for proper alignment, smoothness of operation, and responsiveness to i...read more

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Q7. What are different manufacturing processes?

Ans.

Manufacturing processes are methods used to create products from raw materials or components.

  • Casting - pouring molten metal into a mold to create a solid object

  • Machining - using tools to remove material from a workpiece to create a desired shape

  • Forming - shaping a material by bending, stamping, or pressing

  • Joining - combining two or more parts to create a finished product

  • Additive manufacturing - building up layers of material to create a 3D object

  • Extrusion - forcing a material...read more

Q8. Details about college project,Importance of static storage class and difference between structure and union.

Ans.

College project on XYZ, static storage class important for variable persistence, structure and union differ in memory allocation

  • My college project was on XYZ, where I implemented a new algorithm for data compression.

  • Static storage class is important for variable persistence across function calls.

  • Structure and union are both used to group related data, but structure allocates memory for all its members while union allocates memory for only one member at a time.

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Q9. construction and working of Induction motor?

Ans.

Induction motor works on the principle of electromagnetic induction to convert electrical energy into mechanical energy.

  • Consists of a stator and a rotor

  • Stator has a set of three-phase windings

  • Rotor is made up of conductive bars

  • When AC current is supplied to the stator, a rotating magnetic field is produced

  • This magnetic field induces a current in the rotor bars, which in turn produces a magnetic field

  • The interaction between the two magnetic fields causes the rotor to rotate

  • Use...read more

Q10. Explain 5s and basic manufacturing process..?

Ans.

5S is a workplace organization method that improves efficiency and safety. Basic manufacturing process involves designing, producing, and delivering products.

  • 5S stands for Sort, Set in Order, Shine, Standardize, and Sustain.

  • Sort involves removing unnecessary items from the workplace.

  • Set in Order involves organizing the remaining items in a logical and efficient manner.

  • Shine involves cleaning and maintaining the workplace.

  • Standardize involves creating and implementing procedur...read more

Q11. What is ct and pt transformer?

Ans.

CT and PT transformers are used to measure high voltage and current in power systems.

  • CT stands for Current Transformer and PT stands for Potential Transformer.

  • CT transformers are used to measure high current in power systems and step down the current to a level that can be measured by instruments.

  • PT transformers are used to measure high voltage in power systems and step down the voltage to a level that can be measured by instruments.

  • Both CT and PT transformers are used for pr...read more

Q12. What is testing. Types of testing?

Ans.

Testing is the process of evaluating a system or component to determine if it meets specified requirements.

  • Testing is an essential part of the software development life cycle.

  • It helps identify defects or errors in the system.

  • Types of testing include unit testing, integration testing, system testing, acceptance testing, and more.

  • Unit testing focuses on testing individual components or modules of the software.

  • Integration testing verifies the interaction between different compon...read more

Q13. Battery management system in Solar Energy ?

Ans.

Battery management system in Solar Energy is crucial for optimizing energy storage and ensuring efficient operation of the system.

  • Monitors battery performance and health

  • Controls charging and discharging processes

  • Balances energy flow between batteries

  • Prevents overcharging and over-discharging

  • Maximizes battery lifespan and overall system efficiency

Q14. What is forging process and How?

Ans.

Forging is a manufacturing process where metal is shaped by applying compressive forces.

  • Forging involves heating the metal to a specific temperature

  • The heated metal is then shaped using a die and a hammer or press

  • The compressive forces applied during forging improve the mechanical properties of the metal

  • Forging can be done using various techniques such as open-die forging, closed-die forging, and impression-die forging

  • Examples of forged products include automotive parts, airc...read more

Q15. What is shell and tube heat exchanger

Ans.

A shell and tube heat exchanger is a type of heat exchanger that consists of a shell (a large pressure vessel) with a bundle of tubes inside.

  • Consists of a shell (pressure vessel) and tubes inside

  • Fluid flows through the tubes while another fluid flows over the tubes to transfer heat

  • Commonly used in industrial applications such as chemical processing, power generation, and HVAC systems

Q16. What is plc and scada?

Ans.

PLC stands for Programmable Logic Controller and SCADA stands for Supervisory Control and Data Acquisition.

  • PLC is a digital computer used for automation of electromechanical processes.

  • SCADA is a software system used for monitoring and controlling industrial processes.

  • PLC and SCADA are often used together in industrial automation systems.

  • PLC is used for controlling the process while SCADA is used for monitoring the process.

  • Examples of industries that use PLC and SCADA include ...read more

Q17. What is Refractories? What is glass

Ans.

Refractories are materials that can withstand high temperatures and are used to line furnaces, kilns, and other high-temperature industrial equipment.

  • Refractories are heat-resistant materials used in various industries.

  • They are designed to withstand extreme temperatures and harsh conditions.

  • Common types of refractories include fireclay, silica, alumina, and magnesite.

  • They are used to line furnaces, kilns, reactors, and other high-temperature equipment.

  • Refractories help to pro...read more

Q18. What is Solar photovoltaic

Ans.

Solar photovoltaic is a technology that converts sunlight into electricity using solar panels.

  • Solar photovoltaic systems use solar panels to capture sunlight and convert it into electricity.

  • The electricity generated can be used to power homes, businesses, and even entire cities.

  • Solar photovoltaic is a renewable energy source that helps reduce reliance on fossil fuels.

  • Examples of solar photovoltaic projects include rooftop solar panels, solar farms, and solar-powered calculato...read more

Q19. What is software testing

Ans.

Software testing is the process of evaluating a software application or system to ensure it meets the specified requirements and functions correctly.

  • Software testing is done to identify defects, errors, or bugs in the software.

  • It involves executing test cases and comparing the actual results with the expected results.

  • Testing can be performed at various levels such as unit testing, integration testing, system testing, and acceptance testing.

  • Different testing techniques like fu...read more

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Q20. Explain the renewable energy sources

Ans.

Renewable energy sources are sources of energy that are replenished naturally and can be used without depleting their reserves.

  • Solar energy: energy from the sun that can be converted into electricity through solar panels

  • Wind energy: energy generated from wind turbines that convert wind into electricity

  • Hydropower: energy generated from flowing water, such as rivers or dams

  • Geothermal energy: energy from the heat within the Earth's crust

  • Biomass: energy from organic materials lik...read more

Q21. what is Adani Power?

Ans.

Adani Power is a leading power generation company in India.

  • Adani Power is a part of the Adani Group, one of India's largest business conglomerates.

  • It operates thermal power plants in India, with a total capacity of over 12,000 MW.

  • Adani Power is known for its focus on sustainable and environmentally friendly power generation.

  • The company has won several awards for its operational excellence and commitment to renewable energy.

  • Adani Power has projects in various states in India, ...read more

Q22. Types of welding, material properties

Ans.

There are various types of welding techniques used for joining materials, and material properties play a crucial role in selecting the appropriate welding method.

  • Common welding techniques include MIG, TIG, Stick, and Flux-cored welding

  • Material properties such as melting point, thermal conductivity, and ductility affect the welding process

  • For example, welding aluminum requires a different technique than welding steel due to their different melting points and thermal conductivi...read more

Q23. Explain working of centrifugal pump

Ans.

Centrifugal pump works by converting rotational kinetic energy into hydrodynamic energy to move fluid through the pump.

  • Rotating impeller creates centrifugal force to push fluid outward

  • Fluid enters pump through center of impeller and is accelerated radially outward

  • Fluid exits pump at high velocity and pressure

  • Commonly used in industries for water supply, sewage systems, and chemical processing

Q24. What is Refractories

Ans.

Refractories are materials that can withstand high temperatures and are used in furnaces, kilns, and other high-temperature applications.

  • Refractories are typically made of ceramic materials such as alumina, silica, and magnesia.

  • They are used to line furnaces, kilns, and other high-temperature equipment to protect them from damage and to maintain high temperatures.

  • Refractories are also used in the production of metals, glass, and cement.

  • Examples of refractory materials include...read more

Q25. What is twisting

Ans.

Twisting is a manufacturing process used to combine two or more yarns or threads together to form a single strand.

  • Twisting is commonly used in textile industry to create stronger and more durable yarns.

  • It involves twisting the individual yarns or threads around each other to create a cohesive strand.

  • Different levels of twisting can be used to achieve different characteristics in the final product, such as strength or elasticity.

Q26. What the least count

Ans.

The least count is the smallest change in the measured quantity that can be detected by the measuring instrument.

  • The least count is determined by the smallest division on the scale of the measuring instrument.

  • It is important for accurate measurements as it indicates the precision of the instrument.

  • For example, if a ruler has markings at every millimeter, the least count would be 1 mm.

  • In a digital instrument, the least count is determined by the number of decimal places displa...read more

Q27. Various heat treatment process

Ans.

Heat treatment processes are used to alter the physical and mechanical properties of materials.

  • Annealing: heating and slowly cooling to reduce hardness and increase ductility

  • Quenching: rapid cooling to increase hardness

  • Tempering: heating and cooling to reduce brittleness and improve toughness

  • Case hardening: adding a hard outer layer to a soft core

  • Normalizing: heating and cooling to refine grain structure

  • Stress relieving: heating and cooling to reduce internal stresses

Q28. Types of weldings and

Ans.

There are several types of welding techniques used in production engineering.

  • Gas welding - uses a flame to heat and melt the metal

  • Arc welding - uses an electric arc to melt the metal

  • MIG welding - uses a wire electrode to join the metal

  • TIG welding - uses a tungsten electrode to join the metal

  • Resistance welding - uses an electric current to join the metal

  • Laser welding - uses a laser beam to join the metal

Q29. Voltage current problems

Ans.

Voltage current problems refer to issues related to the flow of electricity in a circuit.

  • Voltage drop can occur due to resistance in a circuit.

  • Current overload can lead to overheating of components.

  • Proper sizing of wires and components is essential to prevent voltage current problems.

  • Use of voltage regulators and circuit protection devices can help mitigate issues.

  • Examples: Short circuits, overloading of circuits, inadequate wire sizing.

Q30. favourite subject ?

Ans.

My favourite subject is Mathematics.

  • I enjoy solving complex problems and equations.

  • I find it satisfying to arrive at a correct solution.

  • Mathematics is a fundamental subject that is applicable in various fields such as engineering and finance.

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