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JNS Instruments Interview Questions and Answers
24 Interview questions
Gerber files are standard formats for PCB design data, while CD XY coordinates specify component placements on the board.
Gerber Files: These files contain information about the layers of a PCB, including copper layers, solder mask, and silkscreen.
Standard Format: Gerber files follow the RS-274X standard, which is widely accepted in the PCB manufacturing industry.
CD XY Coordinates: These coordinates define the exac...
AOI programming software is used to configure automated optical inspection systems for quality control in manufacturing.
Enables setup of inspection parameters for PCB assemblies.
Allows for the creation of inspection programs tailored to specific products.
Integrates with CAD files to define expected component placements.
Facilitates real-time defect detection and reporting.
Examples include programming software like ...
Inspection conditions for components ensure quality and reliability in SMT production, focusing on visual, mechanical, and electrical checks.
Visual Inspection: Check for physical defects like scratches, misalignment, or incorrect markings.
Mechanical Inspection: Verify component dimensions and lead integrity using calipers or gauges.
Electrical Testing: Conduct tests like continuity checks to ensure proper functiona...
A package of components refers to a collection of electronic parts housed together for assembly and functionality in devices.
Includes various electronic components like resistors, capacitors, and ICs.
Can be in the form of a tape and reel for SMT assembly.
Examples include QFN (Quad Flat No-lead) and BGA (Ball Grid Array) packages.
Designed for efficient handling, storage, and placement on PCBs.
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).
JNS Instruments HR Interview Questions
VLOOKUP is a function in Excel used to search for a value in a table and return a corresponding value from a specified column.
VLOOKUP stands for 'Vertical Lookup'.
It is commonly used in Excel to search for a value in the leftmost column of a table and return a value in the same row from a specified column.
The syntax for VLOOKUP is =VLOOKUP(lookup_value, table_array, col_index_num, [range_lookup]).
Example: =VLOOKUP...
I have a strong understanding of computer systems and software, including proficiency in Microsoft Office Suite and basic troubleshooting skills.
Proficient in Microsoft Office Suite (Word, Excel, PowerPoint, Outlook)
Basic troubleshooting skills for hardware and software issues
Familiar with operating systems such as Windows and MacOS
Experience with data entry and database management
Knowledge of internet browsers an...
A software QA document outlines testing strategies, processes, and standards to ensure software quality and reliability.
Test Plan: Defines the scope, approach, resources, and schedule of testing activities.
Test Cases: Detailed descriptions of test scenarios, including inputs, execution steps, and expected outcomes.
Test Environment: Specifications of the hardware and software setup required for testing.
Defect Manag...
PCB manufacturing involves various materials, primarily including substrates, conductors, and soldering materials.
1. Substrates: Commonly used materials include FR-4 (glass-reinforced epoxy) and polyimide.
2. Conductors: Copper is the primary conductor used for traces and pads.
3. Solder Mask: A protective layer, typically made from epoxy or liquid photoimageable (LPI) materials.
4. Silkscreen: Used for printing labe...
JNS Instruments Interview Experiences
30 interviews found
Praduman Ray
Selected
I applied via Company Website and was interviewed in Feb 2024. There was 1 interview round.
(5 Questions)
- Q1. ISO, 7 QC tool, sws, 8 D
- Q2. Six sigma, kaizen
- Q3. 5 's Methodology
- Ans.
5's Methodology is a systematic approach to workplace organization and standardization.
5S stands for Sort, Set in order, Shine, Standardize, Sustain
It aims to improve efficiency, safety, and quality by organizing the workplace
Example: Sorting out unnecessary items, arranging tools in a designated place, cleaning workstations regularly
- Q4. IATF, x-ray inspection, audit
- Q5. FMEA, ctq, 5 wH
Anonymous
Selected
I applied via Company Website and was interviewed in Feb 2024. There was 1 interview round.
(9 Questions)
- Q1. Electronics Engineering
- Q2. Company Experience
- Q3. Surface mount technology
- Q4. Printer Experiences
- Q5. Mounter Experiences
- Q6. Vishal inspection
- Q7. AOI inspection Line
- Q8. SMT work line Mounter Experiences
- Q9. PCB manufacturing
Interview Preparation Tips
- Company Profiling
- Company
Selected
I applied via Company Website and was interviewed in Mar 2024. There were 2 interview rounds.
(3 Questions)
- Q1. Flow of complete PCB design
- Ans.
The flow of complete PCB design involves schematic design, component placement, routing, design verification, and manufacturing.
Schematic design: Create a schematic diagram of the circuit layout.
Component placement: Position components on the PCB layout.
Routing: Connect the components using traces on the PCB.
Design verification: Check for errors and ensure functionality.
Manufacturing: Prepare the design for production.
- Q2. Pcb assembly in speedometer
- Ans.
PCB assembly in speedometer involves soldering electronic components onto a printed circuit board to ensure accurate readings.
Ensure proper placement of components on the PCB
Use soldering techniques to securely attach components
Test the functionality of the speedometer after assembly
Follow manufacturer's guidelines for assembly process
- Q3. Pcb work in speedometer in full function tester
- Ans.
PCB work in speedometer involves designing and implementing the circuitry for accurate speed measurement and display in a full function tester.
Designing PCB layout for speedometer circuitry
Implementing accurate speed measurement sensors
Integrating display functionality in full function tester
Testing and calibrating speedometer functionality
Pcb knowledge in smt and psmt department
Interview Preparation Tips
Selected
I applied via Referral and was interviewed in Feb 2024. There was 1 interview round.
(4 Questions)
- Q1. Laisioning and local authorities
- Q2. IR issue handling and legal compliance
- Q3. Manpower handling and training development
- Q4. Plant cost saving
Interview Preparation Tips
Selected
I appeared for an interview in Oct 2024, where I was asked the following questions.
- Q1. What are Gerber file and CD XY coordinates?
- Ans.
Gerber files are standard formats for PCB design data, while CD XY coordinates specify component placements on the board.
Gerber Files: These files contain information about the layers of a PCB, including copper layers, solder mask, and silkscreen.
Standard Format: Gerber files follow the RS-274X standard, which is widely accepted in the PCB manufacturing industry.
CD XY Coordinates: These coordinates define the exact pos...
- Q2. What are Gerber files and CD XY coordinates?
- Ans.
Gerber files are standard formats for PCB design data, while CD XY coordinates specify component placements on the board.
Gerber files contain information for PCB manufacturing, including layer data, drill holes, and solder mask.
CD XY coordinates define the exact positions of components on the PCB, ensuring accurate assembly.
Example of Gerber file types: RS-274X, which includes both graphical and non-graphical data.
CD X...
- Q3. What are OCV , OCR aa nd ROI.
- Ans.
OCV, OCR, and ROI are key metrics in SMT production for assessing quality and efficiency.
OCV (Optical Character Verification) ensures printed characters on PCBs match specifications.
OCR (Optical Character Recognition) converts printed text into machine-readable data for verification.
ROI (Return on Investment) measures the profitability of SMT production investments, e.g., new machinery.
- Q4. What is make a AOi programming software.
- Ans.
AOI programming software is used to configure automated optical inspection systems for quality control in manufacturing.
Enables setup of inspection parameters for PCB assemblies.
Allows for the creation of inspection programs tailored to specific products.
Integrates with CAD files to define expected component placements.
Facilitates real-time defect detection and reporting.
Examples include programming software like Koh Y...
- Q5. What is a packege of component.
- Ans.
A package of components refers to a collection of electronic parts housed together for assembly and functionality in devices.
Includes various electronic components like resistors, capacitors, and ICs.
Can be in the form of a tape and reel for SMT assembly.
Examples include QFN (Quad Flat No-lead) and BGA (Ball Grid Array) packages.
Designed for efficient handling, storage, and placement on PCBs.
- Q6. What is a inspection conditions of component.
- Ans.
Inspection conditions for components ensure quality and reliability in SMT production, focusing on visual, mechanical, and electrical checks.
Visual Inspection: Check for physical defects like scratches, misalignment, or incorrect markings.
Mechanical Inspection: Verify component dimensions and lead integrity using calipers or gauges.
Electrical Testing: Conduct tests like continuity checks to ensure proper functionality.
...
Selected
I applied via Walk-in and was interviewed in Feb 2024. There was 1 interview round.
(2 Questions)
- Q1. About yourself and work experience
- Q2. Work experience
Interview Preparation Tips
- Computer Networking
Selected
I applied via Recruitment Consulltant and was interviewed in May 2024. There were 2 interview rounds.
My education and my life working
Learning good and speak english
I appeared for an interview before May 2024, where I was asked the following questions.
- Q1. Electrical and machaanical
- Q2. All types wiring diagram
- Ans.
Wiring diagrams illustrate electrical circuits, showing connections and components for installation and troubleshooting.
Schematic Diagrams: Represent the electrical connections and functions of a system using symbols (e.g., circuit boards).
Wiring Layout Diagrams: Show the physical layout of wiring in a building or installation (e.g., home wiring).
Single-Line Diagrams: Simplified representation of a power system, showin...
Selected
I applied via Referral and was interviewed before Sep 2023. There was 1 interview round.
(2 Questions)
- Q1. What is a resistor?
- Q2. What is a transistor?
Selected
I appeared for an interview in Jan 2024.
(2 Questions)
- Q1. Quality Assurance
- Q2. Quality Related
I applied via Approached by Company and was interviewed in Sep 2022. There were 4 interview rounds.
(14 Questions)
- Q1. Quality good production
- Q2. Quality good production and quality
- Q3. Good production and supervisor
- Q4. Good production and quality good
- Q5. Good production supervisor and management
- Q6. Good production and quality and
- Q7. Good production and quality and quality
- Q8. Good production and quality good production
- Q9. Good production and quality good management
- Q10. Good production and and support
- Q11. Good quality and production management and department
- Q12. Good production and quality and production management
- Q13. Good production supervis and quality
- Q14. Production supervisor and quality good
Good production supervisor and management and quality
(12 Questions)
- Q1. Production supervisor
- Q2. Production supervisor and management
- Q3. Production supervisor and quality good
- Q4. Production supervisor and management and quality good production
- Q5. Production supervisor and management and quality good production supervisor
- Q6. Production supervisor and quality good production
- Q7. Production supervisor and management and operator
- Q8. Production supervisor and quality good production and
- Q9. Good production and quality good production supervisor
- Q10. Good production and quality good production supervisor and management
- Ans. Good production and quality good production
- Q11. Good production and supervisor and management teamline
- Q12. Good production supervisor and management and quality good
Interview Preparation Tips
- 2D
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Assistant Engineer
110
salaries
|  ₹1.6 L/yr - ₹4.2 L/yr |
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Engineer
109
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| ₹2.2 L/yr - ₹5 L/yr |
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Production Engineer
90
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| ₹2.2 L/yr - ₹5 L/yr |
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Junior Engineer
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| ₹1.7 L/yr - ₹3.5 L/yr |
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| ₹5.5 L/yr - ₹9.9 L/yr |
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