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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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A wire harness is a collection of wires, cables, and connectors that transmit electrical signals and power between different components in a system.
Wire harnesses provide a neat and organized way to route and protect wires in a system.
They ensure proper connectivity and prevent wire damage or short circuits.
Wire harnesses simplify troubleshooting and maintenance by allowing easy identification and replacement of faulty...
Sputtering is a process used in manufacturing to deposit thin films of material onto a surface.
Sputtering is a physical vapor deposition technique.
It involves bombarding a target material with high-energy ions or atoms.
This bombardment dislodges atoms from the target material, which then deposit onto a substrate.
Sputtering is commonly used in the production of semiconductor devices, solar cells, and thin film coatings.
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I applied via Approached by Company and was interviewed before Feb 2021. There were 3 interview rounds.
I applied via Job Portal
Increasing product efficiency can be achieved through optimizing processes, improving technology, and enhancing employee skills.
Optimize production processes to eliminate waste and improve workflow
Upgrade technology to automate tasks and improve accuracy
Provide training and development opportunities for employees to enhance their skills and knowledge
I would improve the user interface to enhance user experience and streamline navigation.
Enhance user interface design for better usability
Streamline navigation to improve user experience
Implement user feedback to make necessary changes
Optimize performance for faster loading times
I applied via Approached by Company and was interviewed in Apr 2024. There was 1 interview round.
Types of process include batch process, continuous process, and hybrid process.
Batch process involves processing a set amount of materials at one time
Continuous process involves ongoing production without interruption
Hybrid process combines elements of both batch and continuous processes
I applied via Approached by Company and was interviewed before Jun 2022. There were 5 interview rounds.
Sub cooling in air conditioning is the process of cooling the refrigerant below its saturation temperature to improve system efficiency.
Sub cooling increases the efficiency of the air conditioning system by ensuring the refrigerant is in a liquid state before entering the expansion valve.
It helps in preventing flash evaporation of the refrigerant, which can lead to inefficiencies in the system.
Sub cooling is typically ...
ISEER rating is calculated based on the weighted average of the cooling performance of an air conditioner under different conditions.
ISEER = (Weighted Cooling Capacity at 100% load x 0.4) + (Weighted Cooling Capacity at 75% load x 0.2) + (Weighted Cooling Capacity at 50% load x 0.4)
The higher the ISEER rating, the more energy efficient the air conditioner is.
ISEER rating helps consumers compare the energy efficiency of...
The refrigeration cycle is a thermodynamic cycle used in refrigerators and air conditioning systems to transfer heat from a low temperature to a high temperature environment.
The cycle consists of four main components: compressor, condenser, expansion valve, and evaporator.
The refrigerant enters the compressor as a low-pressure gas and leaves as a high-pressure, high-temperature gas.
The high-pressure gas then flows into...
Mainstream refrigerants used in household air conditioning include R-410A, R-22, and R-134a.
R-410A is a popular refrigerant known for its high efficiency and environmental friendliness.
R-22, although being phased out due to its ozone-depleting properties, is still commonly found in older air conditioning systems.
R-134a is commonly used in automotive air conditioning systems but can also be found in some household units
1 ton cooling concept refers to the amount of heat required to melt one ton of ice in a 24-hour period.
1 ton of cooling is equal to 12,000 BTUs per hour
It is commonly used in the HVAC industry to measure the cooling capacity of air conditioning systems
For example, a 2-ton air conditioner can remove 24,000 BTUs of heat per hour
The relationship between current, voltage, and power is described by Ohm's Law, which states that current is directly proportional to voltage and inversely proportional to resistance.
Ohm's Law states that V = I * R, where V is voltage, I is current, and R is resistance.
Power (P) is calculated using the formula P = V * I, where P is power, V is voltage, and I is current.
In a circuit with a constant resistance, an increa...
1 BTU is approximately equal to 0.29307107 watts. To convert BTU to watts, multiply by 0.29307107. To convert watts to BTU, divide by 0.29307107.
1 BTU = 0.29307107 watts
To convert BTU to watts, multiply by 0.29307107
To convert watts to BTU, divide by 0.29307107
I applied via Job Portal and was interviewed in Oct 2023. There were 2 interview rounds.
1 hour - Trees, Array, Hashmap, DP, CP etc
I was interviewed in Feb 2024.
Piping at suction typically includes a strainer, isolation valve, and a suction line connected to the pump.
Includes a strainer to prevent debris from entering the pump
Isolation valve for maintenance purposes
Suction line connected to the pump for fluid intake
Some of the top questions asked at the Padget Electronics Senior Smt Engineer interview -
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