R&D Manager

10+ R&D Manager Interview Questions and Answers

Updated 17 Jun 2024

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Q1. Explain the SMT process for PCB. What are the checks and testing you will ensure to make your product defect free.

Ans.

SMT process involves placing surface mount components on PCB. Testing and checks include AOI, X-ray, ICT, and functional testing.

  • Solder paste is applied to the PCB pads

  • Components are placed on the solder paste using pick and place machines

  • The PCB is then heated in a reflow oven to melt the solder paste and attach the components

  • Automated Optical Inspection (AOI) is done to check for any defects in component placement and solder joints

  • X-ray inspection is done to check for any h...read more

Q2. In Automotive 2W why CAN protocol is used only. What are the different communication protocols have you worked with in your previous organisation.

Ans.

CAN protocol is used in Automotive 2W due to its reliability and efficiency. I have worked with LIN, FlexRay, and Ethernet protocols.

  • CAN protocol is used in Automotive 2W due to its ability to handle large amounts of data and its error detection capabilities.

  • LIN protocol is used for low-speed communication in automotive applications.

  • FlexRay protocol is used for high-speed communication in automotive applications.

  • Ethernet protocol is used for in-vehicle networking and is becom...read more

Q3. Explain the difference between BJT and MOSFET. What is a avalanche breakdown?

Ans.

BJT and MOSFET are two types of transistors. Avalanche breakdown is a phenomenon that occurs in both.

  • BJT is a bipolar junction transistor that uses both electrons and holes for conduction while MOSFET is a metal-oxide-semiconductor field-effect transistor that uses only electrons.

  • BJT has a higher gain and faster switching speed than MOSFET but is less efficient and generates more heat.

  • Avalanche breakdown is a phenomenon that occurs when a high voltage causes a large number of...read more

Q4. How does a UDS tool communicate and what are the different layers of Autosar.

Ans.

A UDS tool communicates through a diagnostic protocol and Autosar has four layers: Application, RTE, BSW, and MCAL.

  • UDS tool communicates through a diagnostic protocol called Unified Diagnostic Services (UDS)

  • Autosar has four layers: Application, Runtime Environment (RTE), Basic Software (BSW), and Microcontroller Abstraction Layer (MCAL)

  • Application layer contains the software components that implement the application functionality

  • RTE layer provides communication between the ap...read more

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Q5. What are the Bajaj 3W n 2W portfolio you are aware of.

Ans.

Bajaj Auto manufactures a range of 3-wheelers and 2-wheelers.

  • Bajaj 3-wheelers include RE Compact, RE Optima, RE City, and RE Maxima.

  • Bajaj 2-wheelers include Pulsar, Avenger, Dominar, and Platina.

  • Bajaj also manufactures electric scooters like Chetak and electric 3-wheelers like Qute.

  • The company has a strong presence in the Indian market and exports to several countries.

Q6. What are the preliminary steps to approach a market issue if it is process or design related.

Ans.

Preliminary steps to approach a process or design related market issue.

  • Identify the issue and its impact on the market

  • Analyze the root cause of the issue

  • Develop a plan to address the issue

  • Implement the plan and monitor its effectiveness

  • Continuously improve the process or design to prevent future issues

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Q7. What is the basic criteria of selecting a TVS diode.

Ans.

The basic criteria for selecting a TVS diode is its breakdown voltage, power handling capability, and response time.

  • The breakdown voltage should be higher than the maximum voltage that the circuit will experience.

  • The power handling capability should be sufficient to handle the maximum transient power.

  • The response time should be fast enough to clamp the transient voltage before it can damage the circuit.

  • Other factors to consider include package size, cost, and availability.

  • For...read more

Q8. How you will contribute to the company in producing new chemical intermediates for dyes?

Ans.

I will contribute by leading a team of researchers to develop innovative chemical processes and collaborate with suppliers to source high-quality raw materials.

  • Lead a team of researchers to conduct experiments and analyze data

  • Collaborate with suppliers to source high-quality raw materials

  • Stay updated on industry trends and technologies to drive innovation

  • Optimize production processes to improve efficiency and reduce costs

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Q9. Explain the electrical system and the parts used in 2W EV vehicles.

Ans.

The electrical system of 2W EV vehicles consists of a battery, motor, controller, and charging system.

  • The battery provides power to the motor.

  • The motor converts electrical energy into mechanical energy to drive the vehicle.

  • The controller manages the flow of electricity between the battery and motor.

  • The charging system recharges the battery when the vehicle is not in use.

  • Other components include sensors, wiring, and fuses for safety and efficiency.

  • Examples of 2W EV vehicles in...read more

Q10. What is gear nomenclature

Ans.

Gear nomenclature refers to the standardized system of naming and identifying gears.

  • Gear nomenclature includes terms such as pitch diameter, face width, and pressure angle.

  • It is important for engineers to understand gear nomenclature in order to design and manufacture gears correctly.

  • The AGMA (American Gear Manufacturers Association) provides guidelines for gear nomenclature.

  • Examples of gear types include spur gears, helical gears, bevel gears, and worm gears.

Q11. Product development steps

Ans.

Product development steps involve ideation, research, design, testing, and launch.

  • Ideation: Generating ideas for new products or improvements

  • Research: Conducting market research and gathering customer feedback

  • Design: Creating prototypes and final product designs

  • Testing: Testing the product for quality, functionality, and user experience

  • Launch: Introducing the product to the market and monitoring its performance

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