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40+ Draftech International Interview Questions and Answers

Updated 2 Feb 2025

Q1. What is FEA analysis, and what tools are available to perform it?

Ans.

FEA analysis is a numerical method used to predict how a product will react to real-world forces, vibrations, heat, and fluid flow.

  • FEA stands for Finite Element Analysis

  • It is a computerized method for predicting how a product will react to real-world forces, vibrations, heat, and fluid flow

  • FEA breaks down a complex problem into small elements and solves them to obtain an approximate solution

  • Common tools for FEA analysis include ANSYS, Abaqus, Nastran, and SolidWorks Simulatio...read more

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Q2. Define 5 GD&T Symbols, What is difference between Parallism and Flateness

Ans.

GD&T symbols include Position, Concentricity, Profile, Runout, and Parallelism. Parallelism ensures two surfaces are parallel, while flatness ensures a surface is flat.

  • Position: Specifies the location of a feature in relation to a datum

  • Concentricity: Ensures that two features have a common axis

  • Profile: Controls the shape, size, and orientation of a feature

  • Runout: Specifies the allowable amount of total indicator reading for circular features

  • Parallelism: Ensures two surfaces a...read more

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Q3. What are bevel gears and what are their applications?

Ans.

Bevel gears are gears with cone-shaped teeth used to transmit motion between intersecting shafts at an angle.

  • Bevel gears are used to change the direction of rotation between intersecting shafts.

  • They are commonly used in differential gears in vehicles to transfer power from the driveshaft to the wheels.

  • Bevel gears are also used in hand drills, printing presses, and marine applications.

  • They can have straight, spiral, or hypoid teeth depending on the application.

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Q4. What is the difference between severity and priority?

Ans.

Severity refers to the impact of a defect on the system, while priority refers to the urgency of fixing the defect.

  • Severity is the measure of how much a defect affects the system's functionality or performance.

  • Priority is the measure of how urgently a defect needs to be fixed.

  • Severity and priority are often used together to prioritize defects for fixing.

  • For example, a defect that causes the system to crash would have high severity and high priority, while a cosmetic defect wo...read more

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Q5. Which gear pair is best & how can we select it?

Ans.

The best gear pair depends on the specific application and requirements, typically selected based on gear ratio, torque, speed, and efficiency.

  • Consider the required gear ratio for the application

  • Evaluate the torque and speed requirements

  • Take into account the efficiency of the gear pair

  • Choose the gear pair that best meets the application's needs

  • Examples: spur gears for high speed applications, helical gears for high torque applications

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Q6. How many microns are equivalent to 1 millimeter?

Ans.

1 millimeter is equivalent to 1000 microns.

  • 1 millimeter = 1000 microns

  • Micron is a unit of length equal to one millionth of a meter

  • Millimeter is a unit of length equal to one thousandth of a meter

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Q7. Types of gates and two stroke and four stroke different

Ans.

Gates are used in IC engines to control the flow of air/fuel mixture. Two-stroke engines complete a cycle in two strokes, while four-stroke engines complete it in four strokes.

  • In two-stroke engines, the intake and exhaust valves are not present, and the fuel is mixed with air in the crankcase.

  • In four-stroke engines, the intake and exhaust valves are present, and the fuel is mixed with air in the carburetor.

  • Types of gates include intake and exhaust gates, which control the flo...read more

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Q8. What is important of hardness & toughness?

Ans.

Hardness and toughness are important properties in materials science for determining resistance to deformation and ability to absorb energy.

  • Hardness refers to a material's ability to resist deformation, scratching, or indentation.

  • Toughness is the ability of a material to absorb energy and plastically deform without fracturing.

  • Hardness is often measured using the Mohs scale for minerals or the Rockwell scale for metals.

  • Toughness can be tested through impact tests like Charpy o...read more

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Q9. Automobile sector next 10 years what condition?

Ans.

The automobile sector is expected to experience significant advancements and changes in the next 10 years.

  • Increased adoption of electric vehicles

  • Advancements in autonomous driving technology

  • Integration of artificial intelligence in manufacturing processes

  • Shift towards sustainable and eco-friendly practices

  • Rise of shared mobility services

  • Development of connected cars and smart infrastructure

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Q10. What are the software we use in Siemens system PLC,HMI,CNC etc?

Ans.

Siemens systems commonly use TIA Portal for PLC programming, WinCC for HMI, and Sinumerik for CNC.

  • TIA Portal is used for programming PLCs in Siemens systems

  • WinCC is the HMI software used in Siemens systems

  • Sinumerik is the CNC software used in Siemens systems

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Q11. Why we can optimise existing design?

Ans.

Optimizing existing design can improve functionality, efficiency, and user experience.

  • Optimizing existing design can lead to cost savings by reducing the need for a complete redesign.

  • It can improve user experience by addressing any usability issues or inefficiencies in the current design.

  • Optimizing design can also enhance functionality and performance, making the product more competitive in the market.

  • Examples include updating software interfaces to be more intuitive, streaml...read more

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Q12. Which engine and fuel using on flights

Ans.

The type of engine and fuel used on flights varies depending on the aircraft and airline.

  • Different airlines use different types of engines and fuels depending on their preferences and the type of aircraft they operate.

  • Some common types of engines used on flights include turbofan, turboprop, and turbojet engines.

  • The most commonly used fuel for commercial flights is jet fuel, which is a type of kerosene.

  • Some airlines are also experimenting with alternative fuels such as biofuel...read more

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Q13. Type of wheels used in grinding...

Ans.

Grinding wheels are typically made of abrasive materials such as aluminum oxide, silicon carbide, or diamond.

  • Grinding wheels are made of abrasive materials that are bonded together to form a solid wheel.

  • Common abrasive materials used in grinding wheels include aluminum oxide, silicon carbide, and diamond.

  • The type of wheel used depends on the material being ground and the desired finish.

  • Grinding wheels come in various shapes and sizes to suit different applications.

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Q14. What is mean by quality?

Ans.

Quality refers to the degree of excellence or superiority of a product or service.

  • Quality is a measure of how well a product or service meets customer expectations and requirements.

  • It involves meeting or exceeding standards and specifications.

  • Quality can be subjective and may vary depending on the context and industry.

  • It encompasses various aspects such as reliability, durability, performance, and customer satisfaction.

  • Quality is achieved through effective quality management ...read more

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Q15. What's will you do to find out root cause of rust

Ans.

To find out the root cause of rust, I would conduct a thorough investigation including examining the packaging materials, storage conditions, and handling processes.

  • Examine the packaging materials for any defects or vulnerabilities that could lead to rust formation

  • Evaluate the storage conditions such as humidity levels and temperature fluctuations that may contribute to rust

  • Review the handling processes to identify any potential causes of damage to the packaging that could re...read more

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Q16. Types of Material used in mechanical industry

Ans.

Various materials used in mechanical industry include metals, plastics, ceramics, and composites.

  • Metals: steel, aluminum, copper, titanium

  • Plastics: nylon, PVC, polycarbonate

  • Ceramics: alumina, zirconia

  • Composites: carbon fiber, fiberglass

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Q17. CAN Protocols and deep explanation of hardware of hil testing

Ans.

CAN protocols are used for communication between microcontrollers and devices in automotive systems. HIL testing involves simulating real-world conditions for testing hardware.

  • CAN protocols are used for high-speed communication between electronic control units (ECUs) in vehicles.

  • HIL testing, or Hardware-in-the-Loop testing, involves testing electronic control units (ECUs) in a simulated environment.

  • HIL testing allows for testing of hardware components in a controlled environm...read more

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Q18. What are the strongest bearings?

Ans.

The strongest bearings are typically made of materials like steel, ceramic, or titanium for high durability and load capacity.

  • Steel bearings are commonly used for their strength and durability.

  • Ceramic bearings are known for their high resistance to corrosion and wear.

  • Titanium bearings are lightweight yet strong, making them ideal for certain applications.

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Q19. How to mange the emergency switchuvation

Ans.

Emergency switchuation management involves quick response, clear communication, and following established protocols.

  • Quickly assess the situation and determine the severity of the emergency.

  • Notify relevant personnel and emergency services if necessary.

  • Follow established protocols and procedures for handling emergencies.

  • Ensure clear communication with all team members to coordinate response efforts.

  • Regularly review and update emergency response plans to ensure readiness.

  • Train e...read more

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Q20. What is Five S

Ans.

Five S is a methodology used to improve workplace organization and efficiency.

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

  • Sort involves removing unnecessary items from the workplace.

  • Set in Order focuses on organizing and arranging necessary items in a logical manner.

  • Shine refers to cleaning and maintaining the workplace.

  • Standardize involves creating and implementing standardized processes and procedures.

  • Sustain focuses on continuously maintaining the...read more

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Q21. Types of load acting on electric motor?

Ans.

Types of load acting on electric motor include constant torque load, variable torque load, and constant power load.

  • Constant torque load: Load where torque required is constant, like conveyor belts.

  • Variable torque load: Load where torque required varies, like fans and pumps.

  • Constant power load: Load where power required is constant, like elevators.

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Q22. How can we select gearbox?

Ans.

Gearbox selection involves considering factors such as torque requirements, speed ratios, efficiency, and size constraints.

  • Determine the torque requirements of the application

  • Calculate the speed ratios needed for the gearbox

  • Consider the efficiency of different gearbox types

  • Take into account size constraints and available space for installation

  • Choose a gearbox type that best meets the requirements, such as spur gear, helical gear, planetary gear, etc.

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Q23. List of material purchase by candidate with volume and value.

Ans.

Sorry, I don't have access to the candidate's purchase history.

  • I don't have the required data to answer this question.

  • I suggest asking the candidate directly for their purchase history.

  • Alternatively, you could ask for references from their previous employers.

  • It's important to verify the candidate's experience and qualifications before hiring.

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Q24. Tell me about is CNC?

Ans.

CNC stands for Computer Numerical Control, a technology used in manufacturing to control machining tools and 3D printers.

  • CNC machines are programmed with a specific set of instructions, allowing for precise and automated manufacturing processes.

  • They can be used for cutting, drilling, milling, and other processes in various materials such as metal, plastic, and wood.

  • CNC machines are commonly used in industries like aerospace, automotive, and electronics for high-precision and ...read more

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Q25. How packaging is cost can be optimised?

Ans.

Packaging cost can be optimised by reducing material waste, using efficient designs, and sourcing materials strategically.

  • Reduce material waste by optimizing packaging design to minimize excess material usage

  • Use efficient designs such as standardized packaging sizes to reduce production costs

  • Source materials strategically by negotiating with suppliers for better pricing and quality

  • Consider alternative eco-friendly materials that may be cost-effective in the long run

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Q26. What is called bearing?

Ans.

Bearing is a machine element that allows one part to bear another part's weight and facilitate relative motion between the two parts.

  • Bearing is used to support rotating shafts in machinery.

  • It reduces friction between moving parts.

  • Common types include ball bearings, roller bearings, and plain bearings.

  • Examples: wheel bearings in cars, bearings in electric motors.

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Q27. Define automobile and industry

Ans.

Automobile is a vehicle designed for transportation on roads, and the automobile industry is the sector that designs, develops, manufactures, and sells automobiles.

  • Automobile is a four-wheeled vehicle powered by an internal combustion engine or an electric motor.

  • The automobile industry includes companies that design, develop, manufacture, and sell automobiles, such as Ford, Toyota, and General Motors.

  • The industry also includes suppliers of parts and components, such as Bosch ...read more

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Q28. Explain function pointers in c?

Ans.

Function pointers in C are pointers that point to functions instead of data.

  • Function pointers are used to pass functions as arguments to other functions.

  • They can be used to implement callbacks and event handlers.

  • Syntax: return_type (*ptr_name)(parameters);

  • Example: int (*funcPtr)(int, int);

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Q29. Pls define 5s and first off approval

Ans.

5S is a method for organizing a workplace to improve efficiency and safety. First off approval is the initial approval given for a process or project.

  • 5S stands for Sort, Set in order, Shine, Standardize, Sustain

  • It involves organizing the workplace by removing unnecessary items, arranging necessary items in a logical manner, cleaning and maintaining the workspace, and establishing procedures for sustaining the improvements

  • First off approval is the initial approval given at the...read more

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Q30. Types of load taken by bearing

Ans.

Types of load taken by bearing include radial load, axial load, and combined load.

  • Radial load: Load acting perpendicular to the axis of rotation, like the weight of a rotating shaft.

  • Axial load: Load acting parallel to the axis of rotation, like the thrust on a rotating shaft.

  • Combined load: Combination of radial and axial loads, common in many applications.

  • Other types of loads include moment load and dynamic load.

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Q31. What you know about bearing??

Ans.

Bearings are mechanical components that reduce friction between moving parts.

  • Bearings are used in various applications such as automobiles, industrial machinery, and household appliances.

  • They come in different types such as ball bearings, roller bearings, and plain bearings.

  • Proper lubrication is essential for the longevity and performance of bearings.

  • Common bearing failures include wear, corrosion, and fatigue.

  • Bearing selection depends on factors such as load, speed, and temp...read more

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Q32. What is SAP?

Ans.

SAP is a software system used for managing business operations and customer relations.

  • SAP stands for Systems, Applications, and Products in Data Processing.

  • It is used by businesses to manage various operations such as finance, sales, procurement, and production.

  • SAP software helps in streamlining business processes and improving efficiency.

  • It offers various modules such as SAP FI (Financial Accounting), SAP CO (Controlling), SAP MM (Materials Management), and SAP SD (Sales and...read more

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Q33. Explain DCM module from BSW?

Ans.

DCM module in BSW is responsible for managing diagnostic communication between the vehicle and external diagnostic tools.

  • DCM stands for Diagnostic Communication Manager

  • It handles communication protocols such as UDS, KWP2000, and OBD

  • DCM manages diagnostic sessions, communication parameters, and diagnostic trouble codes

  • It provides APIs for diagnostic services like reading and clearing DTCs

  • Example: DCM module in BSW facilitates communication between a vehicle's ECU and a diagnos...read more

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Q34. Sap Module implementation

Ans.

SAP Module implementation involves integrating SAP software into a company's existing systems for improved efficiency.

  • Understand the company's current processes and systems

  • Identify the modules needed for specific functions (e.g. finance, HR, supply chain)

  • Customize the modules to fit the company's requirements

  • Train employees on how to use the SAP modules effectively

  • Monitor and evaluate the implementation for any issues or improvements

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Q35. Pls define the ppe equipment

Ans.

PPE equipment refers to personal protective equipment worn to minimize exposure to hazards that can cause injuries or illnesses.

  • Includes items like helmets, gloves, goggles, masks, and safety shoes

  • Used in various industries such as construction, manufacturing, healthcare, and mining

  • Designed to protect against physical, chemical, biological, and radiological hazards

  • Must be properly fitted and maintained to ensure effectiveness

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Q36. What is weekness

Ans.

Weakness is a personal limitation or area of improvement that can hinder performance.

  • Weaknesses are areas where an individual may lack skills, knowledge, or experience.

  • They can include difficulty in time management, public speaking, or decision-making.

  • Examples of weaknesses can be a tendency to procrastinate, being overly critical of oneself, or being too detail-oriented.

  • It is important to acknowledge weaknesses and work on improving them to become a better team leader.

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Q37. What is kanban

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Q38. 5s Japanese technique

Ans.

5s is a Japanese technique for workplace organization and efficiency.

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

  • It aims to create a clean, organized, and efficient work environment.

  • Sort involves removing unnecessary items from the workplace.

  • Set in Order focuses on arranging necessary items in a logical and accessible manner.

  • Shine involves cleaning and maintaining the workplace.

  • Standardize establishes consistent processes and procedures.

  • Sustain ensures t...read more

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Q39. Explain project

Ans.

The project involved designing and implementing a new production process to improve efficiency and reduce costs.

  • Identify areas for improvement in current production process

  • Research and analyze different production methods and technologies

  • Design and implement new production process

  • Test and optimize the new process for efficiency and cost-effectiveness

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Q40. Explain overcoming

Ans.

Overcoming is the act of successfully dealing with or overcoming a challenge, obstacle, or difficulty.

  • Identifying the challenge or obstacle

  • Developing a plan or strategy to address it

  • Taking action to implement the plan

  • Persisting through setbacks or failures

  • Learning from the experience to improve future outcomes

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Q41. 4m resources method

Ans.

The 4m resources method is a production planning technique that focuses on four key resources: manpower, machines, materials, and methods.

  • The 4m resources method helps in optimizing production processes by considering the availability and utilization of manpower, machines, materials, and methods.

  • Manpower refers to the number of workers available and their skills. It is important to ensure that the right number of skilled workers is allocated to each task.

  • Machines include all ...read more

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