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JNS Instruments Interview Questions and Answers

Updated 29 May 2025
Popular Designations

24 Interview questions

A NATS was asked
Q. What is the full form of PCB?
Ans. 

Printed Circuit Board

  • PCB stands for Printed Circuit Board

  • It is a board made of non-conductive material with conductive pathways etched or printed on it

  • Used in electronic devices to connect and support electronic components

  • Examples include motherboards in computers and control boards in appliances

A Manager PE was asked
Q. Tell me about PLC systems.
Ans. 

PLC stands for Programmable Logic Controller, used to automate industrial processes.

  • PLC is a digital computer used to control machines and processes in manufacturing plants.

  • It uses a programmable memory to store instructions and execute them in real-time.

  • PLC systems are used in various industries such as automotive, food and beverage, and pharmaceuticals.

  • They can be programmed using ladder logic, function block di...

A Manager PE was asked
Q. What is a transformer?
Ans. 

A transformer is an electrical device that transfers electrical energy from one circuit to another through electromagnetic induction.

  • Transformers are used to increase or decrease the voltage of an alternating current (AC) power supply.

  • They consist of two coils of wire, called the primary and secondary, wrapped around a magnetic core.

  • When an AC current flows through the primary coil, it creates a magnetic field tha...

An Engineer was asked
Q. What are some moulding defects?
Ans. 

Moulding defect refers to any imperfection or flaw in the manufacturing process of moulded products.

  • Moulding defects can occur due to various reasons such as improper material flow, inadequate cooling, or incorrect mould design.

  • Examples of moulding defects include flash, sink marks, warpage, voids, and short shots.

  • Flash occurs when excess material escapes from the mould, resulting in a thin layer of material aroun...

View all Engineer interview questions
A Smt Production Supervisor was asked 4mo ago
Q. 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.

View all Smt Production Supervisor interview questions
A Junior Executive Store was asked
Q. 1)Can you know about reports or you make any type of reports in Excel?
Ans. 

Yes, I am proficient in creating reports in Excel including sales reports, inventory reports, and financial reports.

  • Proficient in creating various types of reports in Excel

  • Experience in generating sales reports, inventory reports, and financial reports

  • Skilled in using Excel functions and formulas for data analysis

View all Junior Executive Store interview questions

JNS Instruments HR Interview Questions

5 questions and answers

Q. Why do you want to join JNS?
Q. What is your expected salary?
Q. Tell me about yourself.
An Assistant Trainee Engineer was asked
Q. What is resistance and types of quality control and what is 4M and 5s
Ans. 

Resistance is the opposition to the flow of electric current. Quality control types are statistical, acceptance, and process control. 4M refers to Man, Machine, Material, and Method. 5S is a workplace organization method.

  • Resistance is measured in ohms and can be affected by factors such as temperature and material.

  • Statistical quality control involves analyzing data to identify and address issues in the production ...

View all Assistant Trainee Engineer interview questions
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An Electrical Foreman was asked 2mo ago
Q. 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, s...

View all Electrical Foreman interview questions
A Production Engineer was asked
Q. 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

View all Production Engineer interview questions
A Production Engineer was asked
Q. 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 produc...

View all Production Engineer interview questions

JNS Instruments Interview Experiences

30 interviews found

Interview Questions & Answers

user image Anonymous

posted on 7 Mar 2024

Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Company Website and was interviewed in Feb 2024. There was 1 interview round.

Round 1 - Technical 

(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

Topics to prepare for JNS Instruments interview:
  • Company Profiling
  • Company
Interview preparation tips for other job seekers - Hindi English
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Company Website and was interviewed in Mar 2024. There were 2 interview rounds.

Round 1 - One-on-one 

(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.

  • Answered by AI
  • 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

  • Answered by AI
  • 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

  • Answered by AI
Round 2 - Group Discussion 

Pcb knowledge in smt and psmt department

Interview Preparation Tips

Interview preparation tips for other job seekers - I have job interest My knowledge Pcb full details

HR Manager Interview Questions & Answers

user image Anonymous

posted on 25 Aug 2024

Interview experience
5
Excellent
Difficulty level
Hard
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Referral and was interviewed in Feb 2024. There was 1 interview round.

Round 1 - One-on-one 

(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

Interview preparation tips for other job seekers - Good
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Company Website and was interviewed in Feb 2024. There was 1 interview round.

Round 1 - Technical 

(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

  • Answered by AI
  • Q4. IATF, x-ray inspection, audit
  • Q5. FMEA, ctq, 5 wH
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
-
Result
Selected 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...

  • Answered by AI
  • 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...

  • Answered by AI
  • 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.

  • Answered by AI
  • 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...

  • Answered by AI
  • 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.

  • Answered by AI
  • 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.

    • ...

  • Answered by AI
Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
More than 8 weeks
Result
Selected Selected

I applied via Walk-in and was interviewed in Feb 2024. There was 1 interview round.

Round 1 - One-on-one 

(2 Questions)

  • Q1. About yourself and work experience
  • Q2. Work experience

Interview Preparation Tips

Topics to prepare for JNS Instruments Junior Engineer interview:
  • Computer Networking
Interview preparation tips for other job seekers - About your self and about your work experience

Interview Questions & Answers

user image Anonymous

posted on 26 Jun 2024

Interview experience
5
Excellent
Difficulty level
Hard
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Recruitment Consulltant and was interviewed in May 2024. There were 2 interview rounds.

Round 1 - Case Study 

My education and my life working

Round 2 - Aptitude Test 

Learning good and speak english

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

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...

  • Answered by AI
Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
6-8 weeks
Result
Selected Selected

I applied via Referral and was interviewed before Sep 2023. There was 1 interview round.

Round 1 - Technical 

(2 Questions)

  • Q1. What is a resistor?
  • Q2. What is a transistor?
Interview experience
5
Excellent
Difficulty level
-
Process Duration
2-4 weeks
Result
Selected Selected

I appeared for an interview in Jan 2024.

Round 1 - Technical 

(2 Questions)

  • Q1. Quality Assurance
  • Q2. Quality Related

Top trending discussions

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Interview Hub
6d (edited)
anshitanegi
·
ex -
Planet Spark
When HR’s Chinese English made me drop the interview!
So, I talked to the HR yesterday about the interview. I asked Please send me the location But their English… bro I was shocked! It was like talking to someone jisne english nahi kuch ar hi seekh liya ho, if the HR’s English is this I can only imagine the rest of the company I decided to drop the interview with this chinese english😶‍🌫️
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JNS Instruments Interview FAQs

How many rounds are there in JNS Instruments interview?
JNS Instruments interview process usually has 2-3 rounds. The most common rounds in the JNS Instruments interview process are Resume Shortlist, Technical and One-on-one Round.
How to prepare for JNS Instruments interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at JNS Instruments. The most common topics and skills that interviewers at JNS Instruments expect are Costing, Calendar Management, Information Technology, Mechanical Engineering and RFQ.
What are the top questions asked in JNS Instruments interview?

Some of the top questions asked at the JNS Instruments interview -

  1. 1)Can you know about reports or you make any type of reports in Exc...read more
  2. What is quality audit? What is the strategy for automation test pl...read more
  3. What is resistance and types of quality control and what is 4M and...read more
How long is the JNS Instruments interview process?

The duration of JNS Instruments interview process can vary, but typically it takes about less than 2 weeks to complete.

Tell us how to improve this page.

Overall Interview Experience Rating

4.5/5

based on 32 interview experiences

Difficulty level

Easy 27%
Moderate 67%
Hard 7%

Duration

Less than 2 weeks 47%
2-4 weeks 33%
6-8 weeks 13%
More than 8 weeks 7%
View more

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JNS Instruments Reviews and Ratings

based on 404 reviews

3.9/5

Rating in categories

3.8

Skill development

3.8

Work-life balance

3.4

Salary

3.8

Job security

3.7

Company culture

3.3

Promotions

3.7

Work satisfaction

Explore 404 Reviews and Ratings
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Junior Engineer
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