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30+ Wheels Interview Questions and Answers

Updated 24 Dec 2024

Q1. Difference between RCCB and MCB

Ans.

RCCB is a Residual Current Circuit Breaker that trips when it detects a leakage current, while MCB is a Miniature Circuit Breaker that trips when there is an overload or short circuit.

  • RCCB protects against electric shock by detecting imbalance in current flow, commonly used in wet areas like bathrooms.

  • MCB protects against overloads and short circuits, commonly used in residential and commercial buildings.

  • RCCB has a sensitivity to detect small leakage currents, while MCB has a...read more

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Q2. Do you know Hydralic circuits

Ans.

Yes, I have knowledge of hydraulic circuits.

  • I have experience in designing and troubleshooting hydraulic circuits

  • I am familiar with hydraulic components such as pumps, valves, and actuators

  • I have worked with hydraulic systems in various industries including manufacturing and construction

  • I understand the principles of fluid mechanics and how they apply to hydraulic systems

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Q3. Vccb work principle an

Ans.

Vccb stands for Vacuum Circuit Breaker. It works on the principle of extinguishing the arc in a vacuum environment.

  • VCCB uses a vacuum as the arc quenching medium instead of air or oil.

  • When the contacts of the breaker open, the arc is drawn into the vacuum and extinguished.

  • This method ensures faster arc extinction and reduces the risk of fire hazards.

  • VCCBs are commonly used in high voltage applications where quick and reliable arc extinction is crucial.

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Q4. Maintenance work with planing

Ans.

Maintenance work with planning involves creating a schedule and strategy for upkeep and repairs.

  • Developing a maintenance plan based on equipment needs and usage

  • Scheduling regular inspections and preventative maintenance

  • Coordinating with other departments to minimize downtime

  • Tracking maintenance history and identifying areas for improvement

  • Using data analysis to optimize maintenance processes

  • Example: Creating a weekly schedule for equipment checks and repairs

  • Example: Implement...read more

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Q5. Transformers working principle

Ans.

Transformers work on the principle of electromagnetic induction to transfer electrical energy between two or more circuits.

  • Transformers have two coils of wire, known as primary and secondary coils.

  • When an alternating current flows through the primary coil, it creates a changing magnetic field.

  • This changing magnetic field induces a voltage in the secondary coil, transferring electrical energy.

  • Transformers can step up or step down voltage levels depending on the number of turns...read more

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Q6. Type of MCB and relay

Ans.

Miniature Circuit Breakers (MCBs) and relays are commonly used in electrical systems for protection and control.

  • MCBs are used to protect electrical circuits from overloads and short circuits by automatically switching off the circuit when a fault is detected.

  • Relays are used to control the operation of electrical circuits by opening or closing contacts based on input signals.

  • Common types of MCBs include single-pole, double-pole, and triple-pole configurations.

  • Examples of relay...read more

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Q7. Can you explain the stress strain diagram.

Ans.

The stress-strain diagram shows the relationship between stress and strain in a material.

  • Stress is the force applied per unit area, while strain is the deformation caused by the stress.

  • The diagram typically shows a linear elastic region, followed by a plastic region where the material deforms permanently.

  • The ultimate strength and fracture point of the material can also be determined from the diagram.

  • Examples of materials that exhibit different stress-strain behaviors include ...read more

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Q8. What do you know about mechanical equipments ?

Ans.

Mechanical equipments are devices that use mechanical power to perform a specific task.

  • Mechanical equipments are used in various industries such as manufacturing, construction, and transportation.

  • Examples of mechanical equipments include pumps, motors, engines, and turbines.

  • They require regular maintenance and repair to ensure optimal performance and prevent breakdowns.

  • Knowledge of mechanical principles and engineering is essential for understanding and working with mechanica...read more

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Q9. Indroduce myself and explain drawings details

Ans.

I am a graduate engineer trainee with experience in CAD and 3D modeling. I have worked on various projects including designing mechanical parts and assemblies.

  • My name is [Name] and I recently graduated with a degree in Mechanical Engineering.

  • I have experience in using CAD software such as SolidWorks and AutoCAD.

  • I have worked on various projects including designing mechanical parts and assemblies.

  • I am familiar with reading and interpreting technical drawings and specifications...read more

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Q10. What are all the process and challenges involved in NPD?

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Q11. How to handle customer if wrong part supplied?

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Q12. What is 1st law of thermodynamics

Ans.

The 1st law of thermodynamics states that energy cannot be created or destroyed, only transferred or converted.

  • Energy is conserved in any process

  • Energy can be transferred between systems or converted from one form to another

  • The total energy of a closed system remains constant

  • Example: When a ball is thrown in the air, the potential energy is converted to kinetic energy as it falls back down

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Q13. What are the types of press tools

Ans.

Press tools are used in metalworking to cut, shape, or form metal sheets or components.

  • Blanking tools - used to cut out a blank from a metal sheet

  • Piercing tools - used to create holes in metal sheets

  • Bending tools - used to bend metal sheets into desired shapes

  • Forming tools - used to shape metal sheets into complex forms

  • Drawing tools - used to draw metal sheets into cups or shells

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Q14. What is a programming language.

Ans.

A programming language is a set of instructions that enables a computer to perform specific tasks.

  • Programming languages are used to write code that tells a computer what to do.

  • They consist of syntax rules and commands that are understood by the computer.

  • Examples include Java, C++, Python, and ABAP.

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Q15. What is control frame box?

Ans.

Control frame box is a device used in tool design to hold and position workpieces during machining operations.

  • It is a fixture used to secure and position workpieces during machining

  • It helps to ensure accuracy and consistency in the machining process

  • Control frame boxes can be customized to fit specific workpieces and machining operations

  • They are commonly used in industries such as aerospace and automotive

  • Examples include drilling jigs, milling fixtures, and assembly fixtures

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Q16. Tell me about TQM pillers

Ans.

TQM pillars are the foundation of Total Quality Management. They are the key principles that guide the implementation of TQM.

  • TQM has 8 pillars: customer focus, leadership, involvement of people, process approach, system approach to management, continual improvement, factual approach to decision making, and mutually beneficial supplier relationships

  • Customer focus involves understanding and meeting customer needs and expectations

  • Leadership involves creating a vision and values,...read more

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Q17. Explain FMEA you understood and worked

Ans.

FMEA is a systematic method for identifying and prioritizing potential failure modes in a process or product.

  • FMEA stands for Failure Mode and Effects Analysis

  • It involves identifying potential failure modes, their causes, and the effects of those failures

  • Risk priority numbers (RPN) are calculated to prioritize the identified failure modes

  • Actions are then taken to mitigate the highest priority failure modes

  • Example: In software development, FMEA can be used to identify potential...read more

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Q18. What is engine ,what is tool

Ans.

An engine is a machine that converts fuel into mechanical energy to power a vehicle or device. A tool is an instrument used to perform a specific task.

  • An engine is a complex machine that converts fuel into mechanical energy to power a vehicle or device

  • Tools are instruments used to perform specific tasks, such as a hammer for driving nails or a screwdriver for tightening screws

  • Engines and tools are both essential components in many industries, including automotive, manufacturi...read more

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Q19. Roll forming of sheet metal

Ans.

Roll forming is a metal forming process where a continuous strip of metal is passed through sets of rolls to gradually shape the metal into a desired cross-section.

  • Roll forming is a continuous bending operation used to produce long strips of uniform cross-sections.

  • It is commonly used in the production of sheet metal products like roofing panels, gutters, and automotive parts.

  • The process involves feeding the metal strip through a series of rolls that gradually shape the metal ...read more

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Q20. What was Comes under HR Filed

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Q21. Explain 3 phase induction motor

Ans.

A 3 phase induction motor is a type of AC motor that operates on three phases of alternating current to generate a rotating magnetic field.

  • Operates on three phases of alternating current

  • Generates a rotating magnetic field

  • Commonly used in industrial applications

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Q22. Golden rules of Accounting

Ans.

Golden rules of Accounting are basic principles that guide the process of recording financial transactions.

  • There are three golden rules of accounting: Debit what comes in, Credit what goes out, Debit the receiver, Credit the giver, Debit expenses and losses, Credit income and gains.

  • These rules help maintain the balance in the accounting equation: Assets = Liabilities + Equity.

  • For example, when a company receives cash from a customer, it will debit the cash account (what comes...read more

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Q23. Meaning of Balance Sheet

Ans.

Balance sheet is a financial statement that shows a company's assets, liabilities, and shareholders' equity at a specific point in time.

  • Balance sheet provides a snapshot of a company's financial position

  • It shows what a company owns (assets), owes (liabilities), and the amount invested by shareholders (equity)

  • The formula for a balance sheet is Assets = Liabilities + Shareholders' Equity

  • Examples of assets include cash, inventory, and property; liabilities include loans and acco...read more

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Q24. What is Factory act 1948

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Q25. Oops concepts in Java

Ans.

OOP concepts in Java include inheritance, encapsulation, polymorphism, and abstraction.

  • Inheritance: Allows a class to inherit properties and behavior from another class. Example: class B extends class A.

  • Encapsulation: Bundling data and methods that operate on the data into a single unit. Example: private variables with public getter and setter methods.

  • Polymorphism: Ability of a method to do different things based on the object it is acting upon. Example: method overloading an...read more

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Q26. Iatf document and procedures

Ans.

IATF document and procedures are related to automotive industry quality standards.

  • IATF 16949 is a standard for quality management systems in the automotive industry

  • It is based on ISO 9001 and includes specific requirements for automotive sector

  • Procedures include process control, risk management, and continuous improvement

  • Documentation must comply with IATF requirements to ensure quality and consistency

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Q27. Types of welding machine

Ans.

Types of welding machines include MIG, TIG, stick, and flux-cored.

  • MIG (Metal Inert Gas) welding uses a wire electrode and a shielding gas.

  • TIG (Tungsten Inert Gas) welding uses a tungsten electrode and a separate filler material.

  • Stick welding, also known as Shielded Metal Arc Welding (SMAW), uses a flux-coated electrode.

  • Flux-cored welding uses a tubular wire filled with flux to protect the weld pool.

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Q28. Least count of vernier caliper

Ans.

The least count of a vernier caliper is the smallest measurement that can be read on the scale.

  • The least count is typically 0.02 mm or 0.001 inches on a standard vernier caliper.

  • It is determined by the number of divisions on the main scale and the vernier scale.

  • For example, if the main scale has 20 divisions and the vernier scale has 10 divisions, the least count would be 0.02 mm.

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Q29. DC and AC current difference

Ans.

DC current flows in one direction constantly, while AC current changes direction periodically.

  • DC current flows in one direction only, while AC current changes direction periodically.

  • DC current is commonly used in batteries and electronic devices, while AC current is used in homes and businesses for powering appliances.

  • DC current is easier to convert to other forms of energy, while AC current is more efficient for long-distance power transmission.

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Q30. What is Takt Time

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Q31. Interest in Accounts

Ans.

I have a strong interest in accounts due to my analytical skills and passion for numbers.

  • I enjoy working with financial statements and analyzing data to identify trends and patterns

  • I have a keen eye for detail and accuracy, which is essential in accounting

  • I find satisfaction in balancing accounts and ensuring accuracy in financial records

  • I am always eager to learn about new accounting principles and regulations to stay updated in the field

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