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30+ Cadence Design Systems Interview Questions and Answers

Updated 27 Jan 2025

Q1. Who is the better ? Petrol engine or diesel engine.

Ans.

Both petrol and diesel engines have their own advantages and disadvantages.

  • Petrol engines are generally smoother and quieter than diesel engines.

  • Diesel engines are more fuel-efficient and have more torque than petrol engines.

  • Petrol engines are better suited for city driving while diesel engines are better for long-distance driving.

  • The choice between petrol and diesel engines depends on the individual's driving needs and preferences.

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Q2. Please explain the first and second law Thermodynamics

Ans.

First law of thermodynamics states that energy cannot be created or destroyed, only transferred or converted. Second law states that entropy of an isolated system always increases over time.

  • First law is also known as law of conservation of energy

  • Second law explains why heat flows from hot to cold objects

  • Second law also states that no engine can be 100% efficient

  • Entropy is a measure of disorder in a system

  • Both laws are fundamental to understanding energy and its transformation...read more

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Q3. Different between two stroke and four stroke engine

Ans.

Two stroke engines have one power stroke per revolution while four stroke engines have one power stroke every two revolutions.

  • Two stroke engines have a simpler design and are lighter than four stroke engines.

  • Four stroke engines are more fuel efficient and produce less emissions than two stroke engines.

  • Two stroke engines are commonly used in small power tools and motorcycles while four stroke engines are used in cars and larger machinery.

  • Two stroke engines require a mixture of...read more

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Q4. What is the compression ratio of diesel engine

Ans.

The compression ratio of a diesel engine varies from 14:1 to 25:1 depending on the engine design and application.

  • Compression ratio is the ratio of the volume of the combustion chamber at its largest to its smallest volume

  • Higher compression ratios result in better fuel efficiency and power output

  • Compression ratios for diesel engines typically range from 14:1 to 25:1

  • The compression ratio of an engine can be calculated by measuring the volume of the combustion chamber at its lar...read more

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Q5. What is micrometres and snapmetre value

Ans.

Micrometre is a unit of measurement for length, while snap gauge is a tool used to measure the thickness or diameter of an object.

  • Micrometre is also known as a micron and is equal to one-millionth of a meter.

  • Snap gauge is used in manufacturing to ensure the accuracy of machined parts.

  • Snap gauge can be used to measure the thickness of paper, the diameter of a wire, or the width of a gap.

  • Both micrometre and snap gauge are commonly used in engineering and manufacturing industrie...read more

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Q6. What is the Poisson ratio ?

Ans.

The Poisson ratio is the ratio of lateral strain to longitudinal strain when a material is stretched or compressed.

  • It is a measure of a material's ability to deform in one direction when it is stretched or compressed in another direction.

  • It is denoted by the Greek letter nu (ν).

  • The Poisson ratio is always between -1 and 0.5.

  • For example, rubber has a Poisson ratio of around 0.5, meaning it can stretch a lot in one direction while compressing very little in the other direction.

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Q7. What is the minimum limit of vernier caliper

Ans.

The minimum limit of a vernier caliper is the smallest measurement it can accurately measure.

  • The minimum limit of a vernier caliper is typically 0.02 mm or 0.001 inches.

  • This means that the vernier caliper can accurately measure up to 0.02 mm or 0.001 inches.

  • Any measurement smaller than the minimum limit may not be accurate or reliable.

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Q8. Flexible working hours beyond office hours.

Ans.

Flexible working hours beyond office hours are beneficial for both employees and employers.

  • Flexible working hours can improve work-life balance and reduce stress for employees.

  • It can also increase productivity and job satisfaction.

  • Examples include working from home, compressed workweeks, and flexible start and end times.

  • Employers can benefit from reduced absenteeism and turnover rates.

  • It can also attract and retain top talent and improve overall company culture.

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Q9. What is petrol engine

Ans.

A petrol engine is an internal combustion engine that uses petrol as fuel to power the vehicle.

  • Petrol engines are commonly used in cars, motorcycles, and small aircraft.

  • They work by compressing a mixture of petrol and air in a cylinder, which is then ignited by a spark plug.

  • The resulting explosion pushes a piston, which turns a crankshaft and powers the vehicle.

  • Petrol engines are known for their high power output and quick acceleration.

  • However, they are less fuel-efficient th...read more

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Q10. What is unit of pressure

Ans.

The unit of pressure is Pascal (Pa)

  • Pressure is defined as force per unit area

  • The SI unit of force is Newton (N) and area is square meter (m²)

  • 1 Pascal is equal to 1 Newton per square meter (N/m²)

  • Other common units of pressure include atmosphere (atm), bar (bar), and pounds per square inch (psi)

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Q11. What is the role of line leader

Ans.

A line leader is responsible for overseeing a specific production line or team of workers to ensure efficiency and quality.

  • Supervising and coordinating the activities of workers on the production line

  • Ensuring that production targets are met within the specified time frame

  • Monitoring the quality of products being produced and addressing any issues that arise

  • Training new employees on the production processes and safety procedures

  • Maintaining a safe and clean work environment for ...read more

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Q12. What aboout Line balancing , How to calculate line OEE .

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Q13. What is the 3 laws of thermodynamics

Ans.

The three laws of thermodynamics are fundamental principles that govern energy and its transformations in a system.

  • First law: Energy cannot be created or destroyed, only transferred or converted.

  • Second law: The entropy of an isolated system always increases over time.

  • Third law: As temperature approaches absolute zero, the entropy of a system approaches a minimum value.

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Q14. What is hooks law

Ans.

Hook's law states that the force required to extend or compress a spring is directly proportional to the distance it is stretched or compressed.

  • It is a principle in physics that describes the relationship between the force applied to a spring and the distance the spring stretches or compresses.

  • The law states that the force required to extend or compress a spring is directly proportional to the distance it is stretched or compressed.

  • The constant of proportionality is known as ...read more

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Q15. What is welding

Ans.

Welding is a process of joining two or more metal parts by heating them to a melting point and then allowing them to cool and fuse together.

  • Welding requires a heat source, such as a torch or electric arc, to melt the metal parts

  • The melted metal parts are then allowed to cool and fuse together, creating a strong bond

  • Different types of welding include MIG, TIG, and stick welding

  • Welding is used in various industries, including construction, manufacturing, and automotive

  • Welding c...read more

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Q16. What are you vernier caliper least caunt

Ans.

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

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

  • 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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Q17. What are you maicrometer least caunt

Ans.

The question seems to be asking about the least count of a micrometer.

  • The least count of a micrometer is the smallest measurement that can be read or measured using the device.

  • It is typically determined by the number of divisions on the thimble and the pitch of the screw.

  • For example, if a micrometer has 50 divisions on the thimble and a pitch of 0.5 mm, the least count would be 0.01 mm.

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Q18. Defination of excellence

Ans.

Excellence is the quality of being outstanding or extremely good in a particular field or endeavor.

  • Excellence involves consistently surpassing expectations and striving for the highest standards.

  • It requires dedication, hard work, and continuous improvement.

  • Examples of excellence include achieving top grades in academics, winning prestigious awards, or delivering exceptional performance at work.

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Q19. How many dimensions are there in GD&T

Ans.

There are three dimensions in GD&T: size, form, and orientation.

  • GD&T stands for Geometric Dimensioning and Tolerancing.

  • The three main dimensions in GD&T are size, form, and orientation.

  • Size refers to the dimensions of an object, such as length, width, and height.

  • Form refers to the shape of an object, including straightness, flatness, roundness, and cylindricity.

  • Orientation refers to the position of features on an object, such as parallelism, perpendicularity, and angularity.

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Q20. How to implement of kaizen

Ans.

Kaizen is a continuous improvement strategy that involves all employees in making small, incremental changes to processes to improve efficiency and quality.

  • Involve all employees in the improvement process

  • Encourage a culture of continuous improvement

  • Identify and eliminate waste in processes

  • Implement small, incremental changes regularly

  • Measure and track improvements over time

  • Provide training and support for employees to participate in kaizen activities

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Q21. How to work poke yoke

Ans.

Poke yoke is a method used in quality control to prevent errors by designing processes that make it impossible to make mistakes.

  • Implementing physical barriers or constraints to prevent errors

  • Using sensors or alarms to alert when errors occur

  • Standardizing processes to reduce variability and human error

  • Training employees on proper procedures and quality standards

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Q22. Defination of Design

Ans.

Design is the process of creating a plan or drawing for the construction of something.

  • Design involves creating a detailed plan or blueprint for a product, system, or structure

  • It includes considering functionality, aesthetics, materials, and cost

  • Design can be done using software tools like AutoCAD or SolidWorks

  • Examples of design include architectural plans, product prototypes, and graphic layouts

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Q23. What is kaizen,5S ,7 QC tools

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Q24. What is time & motion study?

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Q25. What is Diploma

Ans.

A diploma is a certificate or official document awarded by an educational institution, typically after completing a specific course of study.

  • A diploma signifies the successful completion of a program or course of study

  • It is usually awarded by educational institutions such as schools, colleges, or universities

  • Diplomas can be in various fields such as business, engineering, healthcare, etc.

  • Having a diploma can enhance job prospects and career opportunities

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Q26. What is 7 QC tools

Ans.

The 7 QC tools are a set of basic tools used for quality control and problem-solving in manufacturing and other industries.

  • Check sheet: Used to collect and organize data for analysis.

  • Pareto chart: Helps identify the most significant factors contributing to a problem.

  • Cause and effect diagram (Fishbone diagram): Used to identify and analyze potential causes of a problem.

  • Histogram: A visual representation of data distribution.

  • Scatter diagram: Shows the relationship between two v...read more

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Q27. How to calculate cycle time?

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Q28. Favourite subject

Ans.

My favourite subject is Mechanical Engineering because I enjoy learning about how machines work and designing new technologies.

  • I enjoy studying thermodynamics and fluid mechanics

  • I like working on projects involving designing and testing mechanical systems

  • I find learning about materials science and manufacturing processes fascinating

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Q29. Things to take care during RFQ

Ans.

Key considerations during RFQ process

  • Clearly define requirements and specifications

  • Ensure all necessary documents are included in the RFQ

  • Consider the supplier's capabilities and track record

  • Request for competitive pricing and lead times

  • Establish clear communication channels for clarifications

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Q30. Risk factors in Purchase

Ans.

Risk factors in purchase include supplier reliability, quality control, market volatility, and financial stability.

  • Supplier reliability: Ensuring that suppliers can deliver goods on time and meet quality standards.

  • Quality control: Ensuring that purchased goods meet the required specifications and standards.

  • Market volatility: Changes in market conditions can affect the availability and price of goods.

  • Financial stability: Ensuring that suppliers are financially stable and can f...read more

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Q31. Understand the strength of member

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