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I applied via LinkedIn and was interviewed in Sep 2021. There were 3 interview rounds.
SMT (Surface Mount Technology) is a process used in electronics manufacturing to mount electronic components onto the surface of a printed circuit board (PCB).
SMT involves placing electronic components onto the PCB using solder paste and a pick-and-place machine.
The solder paste is applied to the PCB using a stencil, and then the components are placed onto the paste.
The PCB is then heated in a reflow oven, causing the ...
Multiple AOI defects can occur due to various reasons and can be resolved by identifying the root cause and taking corrective actions.
AOI defects can include missing components, wrong polarity, tombstoning, bridging, etc.
Root causes can be incorrect programming, machine calibration, component placement, solder paste printing, etc.
Corrective actions can include reprogramming, recalibrating, adjusting placement parameter...
Multiple SPI defects can occur due to various reasons, leading to poor quality and reliability of the product.
SPI defects can be caused by issues with the solder paste, stencil design, or the reflow process.
To resolve the issue, it is important to identify the root cause and take corrective actions.
Improving the solder paste quality, optimizing the stencil design, and adjusting the reflow profile can help resolve the i...
SPI parameters are defined based on the specific requirements of the PCB and components being used.
SPI parameters include clock frequency, data format, and signal voltage levels.
The clock frequency should be set to the maximum frequency supported by the components.
Data format can be set to either MSB or LSB depending on the component requirements.
Signal voltage levels should be set to match the voltage levels of the co...
To modify stencil, fixture, palets, support block and BGA rework stencil, one needs to follow specific steps.
Stencil modification requires adjusting the aperture size and shape to improve paste deposition
Fixture modification involves changing the clamping mechanism to ensure proper alignment
Palet modification involves adjusting the tooling holes to fit the PCB
Support block modification requires changing the height to a...
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I applied via Company Website and was interviewed in Feb 2022. There were 4 interview rounds.
Refrigeration cycle is a thermodynamic cycle used in refrigerators and air conditioning systems to transfer heat from a low temperature reservoir to a high temperature reservoir.
Consists of four main components: compressor, condenser, expansion valve, and evaporator
Refrigerant is compressed in the compressor, then condensed in the condenser, expanded in the expansion valve, and evaporated in the evaporator
Heat is absor...
Refrigeration theory involves the transfer of heat from a low temperature region to a high temperature region using a refrigerant.
Refrigeration is based on the principles of thermodynamics, specifically the second law which states that heat naturally flows from a higher temperature to a lower temperature.
The refrigeration cycle consists of four main components: compressor, condenser, expansion valve, and evaporator.
The...
I applied via Naukri.com and was interviewed before Oct 2021. There were 3 interview rounds.
I applied via Referral and was interviewed before Sep 2023. There was 1 interview round.
A resistor is an electronic component that resists the flow of electrical current.
Resistors are used to control the amount of current flowing in a circuit.
They are measured in ohms (Ω) and have color-coded bands to indicate their resistance value.
Resistors dissipate energy in the form of heat when current flows through them.
Common types of resistors include carbon film, metal film, and wirewound resistors.
A transistor is a semiconductor device used to amplify or switch electronic signals.
Transistors are fundamental building blocks of modern electronic devices.
They can amplify electrical signals, control the flow of current, and act as switches.
Common types of transistors include bipolar junction transistors (BJTs) and field-effect transistors (FETs).
I applied via Company Website and was interviewed before Dec 2022. There were 3 interview rounds.
Best assignment that you had accomplished in your career
I appeared for an interview before Mar 2024, where I was asked the following questions.
I applied via Referral and was interviewed in Jan 2020. There were 4 interview rounds.
Components in electrical panel include circuit breakers, fuses, relays, transformers, and meters.
Circuit breakers protect against overloads and short circuits.
Fuses protect against overcurrents.
Relays control the flow of electricity.
Transformers change the voltage of the electricity.
Meters measure the amount of electricity being used.
I applied via Naukri.com and was interviewed in Aug 2019. There were 5 interview rounds.
Refrigeration is the process of removing heat from a substance or space to lower its temperature.
Refrigeration is used in various industries such as food preservation, medicine, and air conditioning.
It involves the use of refrigerants, which are substances that can absorb and release heat.
The process of refrigeration involves compressing the refrigerant, condensing it into a liquid, and then expanding it to evaporate a...
1 ton refrigeration is the amount of heat required to melt one ton of ice in 24 hours.
1 ton refrigeration is equal to 12,000 BTU/hr or 3.517 kW.
It is a unit of measurement used to describe the cooling capacity of a refrigeration system.
For example, a 2 ton refrigeration system can remove twice as much heat as a 1 ton system.
The term 'ton' in 1 ton refrigeration refers to the amount of heat required to melt one ton of i...
I applied via Recruitment Consulltant and was interviewed in Jan 2023. There were 3 interview rounds.
To provide excellent service to customers and ensure their satisfaction with the product.
To troubleshoot and resolve technical issues promptly
To maintain a high level of communication with customers
To continuously improve technical knowledge and skills
To meet or exceed service level agreements
To contribute to the growth and success of the company
Performance evaluation involves setting goals, measuring progress, providing feedback, and making necessary adjustments.
Establish clear and measurable goals for the employee
Regularly monitor and track progress towards those goals
Provide constructive feedback on strengths and areas for improvement
Make necessary adjustments to goals or expectations as needed
Document the evaluation process and outcomes for future referenc
Some of the top questions asked at the Padget Electronics Senior Smt Engineer interview for experienced candidates -
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