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JLL Technical Engineer Interview Questions, Process, and Tips

Updated 18 Feb 2021

JLL Technical Engineer Interview Experiences

1 interview found

I applied via Walk-in and was interviewed before Feb 2020. There were 4 interview rounds.

Interview Questionnaire 

4 Questions

  • Q1. What is H pole?
  • Ans. 

    H pole is a type of utility pole used for power distribution.

    • H pole is made of steel or concrete.

    • It is used to support power lines and transformers.

    • H pole is designed to withstand high winds and heavy loads.

    • It is commonly used in urban areas where space is limited.

    • H pole is also known as a hybrid pole or a composite pole.

  • Answered by AI
  • Q2. What is working of ARD in lift?
  • Ans. 

    ARD stands for Automatic Rescue Device which is used in lifts to bring the lift to the nearest floor in case of power failure.

    • ARD is a safety feature in lifts that ensures the safety of passengers in case of power failure.

    • It works by detecting the power failure and activating the backup power source to bring the lift to the nearest floor.

    • ARD is mandatory in lifts installed in high-rise buildings.

    • It is also known as an

  • Answered by AI
  • Q3. What is safety in ACB, VCB, DG set?
  • Ans. 

    Safety in ACB, VCB, DG set refers to measures taken to prevent accidents and ensure the protection of equipment and personnel.

    • ACB (Air Circuit Breaker) safety measures include proper installation, regular maintenance, and adherence to safety guidelines.

    • VCB (Vacuum Circuit Breaker) safety measures involve proper insulation, regular testing, and following safety protocols during operation.

    • DG set (Diesel Generator set) sa...

  • Answered by AI
  • Q4. What is working of transformer and it's working principle? Application of transformer
  • Ans. 

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

    • Transformers work on the principle of electromagnetic induction

    • They consist of two coils, primary and secondary, wound around a common magnetic core

    • When an alternating current is passed through the primary coil, it creates a magnetic field which induces a voltage in the secondary coil

    • Tran...

  • Answered by AI

Interview questions from similar companies

I applied via Naukri.com and was interviewed in Mar 2021. There were 3 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. 1.Social Media integration , Coroutne, RXJava Operators, MVVM, Jetpack,Room DB,Java Basics

Interview Preparation Tips

Interview preparation tips for other job seekers - You should have good communications skill, The interview is not that hard just brush up your basics.
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Naukri.com and was interviewed before Aug 2023. There was 1 interview round.

Round 1 - One-on-one 

(6 Questions)

  • Q1. Use of shunt relay in acb.
  • Ans. 

    A shunt relay in an ACB is used to provide protection against overcurrents by diverting excess current away from the main circuit.

    • Shunt relay is connected in parallel with the main circuit of the ACB.

    • It detects overcurrents and activates to divert the excess current through a shunt path.

    • This helps in protecting the main circuit from damage due to overcurrents.

    • Shunt relays are commonly used in Air Circuit Breakers (ACBs...

  • Answered by AI
  • Q2. What is coc in hvac.
  • Ans. 

    CoC in HVAC stands for Certificate of Conformance, which is a document certifying that a product meets specified requirements.

    • CoC in HVAC is a Certificate of Conformance that ensures a product meets specific requirements.

    • It is often required in HVAC projects to ensure quality and compliance.

    • CoC may include details such as product specifications, testing results, and manufacturer information.

  • Answered by AI
  • Q3. What is Biological oxygen demand and Carbonic oxygen demand in STP Plant.
  • Ans. 

    Biological oxygen demand (BOD) and Chemical oxygen demand (COD) are important parameters in wastewater treatment plants.

    • Biological oxygen demand (BOD) is a measure of the amount of dissolved oxygen needed by aerobic biological organisms to break down organic material in water.

    • Carbonaceous oxygen demand (COD) is a measure of the amount of oxygen required to oxidize all the organic and inorganic matter in water.

    • BOD is a ...

  • Answered by AI
  • Q4. What is voltage monitoring relay.
  • Ans. 

    A voltage monitoring relay is a device that monitors voltage levels and triggers an alarm or protective action if the voltage exceeds or falls below a set threshold.

    • Monitors voltage levels in electrical systems

    • Triggers alarm or protective action if voltage exceeds or falls below set threshold

    • Used to protect equipment from damage due to voltage fluctuations

  • Answered by AI
  • Q5. Working principle of wtp plant.
  • Ans. 

    WTP plant works on the principle of physical and chemical processes to remove impurities from water.

    • Water enters the plant and goes through processes like coagulation, flocculation, sedimentation, filtration, and disinfection.

    • Coagulation involves adding chemicals to water to make impurities clump together.

    • Flocculation helps in forming larger particles called floc for easier removal.

    • Sedimentation allows the floc to sett...

  • Answered by AI
  • Q6. What is your daily and monthly Reports.
  • Ans. 

    I provide daily and monthly reports on project progress, issues, and key metrics to track performance.

    • Daily reports include updates on tasks completed, challenges faced, and plans for the next day.

    • Monthly reports summarize overall progress, budget status, and any potential risks or delays.

    • Reports may also include key performance indicators (KPIs) such as project milestones achieved, budget variance, and resource utiliz...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - keep mind relax interview time. And focus your daily work activities .
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Approached by Company and was interviewed in Mar 2023. There were 3 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Technical 

(1 Question)

  • Q1. LT Side Equipments
Round 3 - HR 

(1 Question)

  • Q1. Introduction & Salary
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. About Binary search
Round 2 - Technical 

(1 Question)

  • Q1. About project and ER diagram

I applied via Naukri.com and was interviewed before Dec 2020. There were 3 interview rounds.

Interview Questionnaire 

2 Questions

  • Q1. Tell me about yourself?
  • Q2. Technical interview questions related to skills like MySQL jquery.

Interview Preparation Tips

Interview preparation tips for other job seekers - There are 3 rounds:-
2 technical(1 is basic and the second one is problem-based).
1 HR round.
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
More than 8 weeks
Result
Selected Selected

I applied via Referral and was interviewed before Mar 2023. There were 2 interview rounds.

Round 1 - Technical 

(1 Question)

  • Q1. JavaScript question
Round 2 - Technical 

(1 Question)

  • Q1. Coding questions
Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Coding Test 

Easy Lettcode questions multiple

Round 3 - One-on-one 

(1 Question)

  • Q1. Lld round with java
Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
More than 8 weeks
Result
Selected Selected

I applied via Company Website and was interviewed before Jan 2023. There was 1 interview round.

Round 1 - Technical 

(5 Questions)

  • Q1. Chiller efficiency
  • Ans. 

    Chiller efficiency is a measure of how well a chiller unit is able to cool a space while using the least amount of energy.

    • Chiller efficiency is typically measured by the Coefficient of Performance (COP), which is the ratio of cooling output to energy input.

    • Regular maintenance and cleaning of chiller components can improve efficiency.

    • Upgrading to a more energy-efficient chiller model can also increase efficiency.

    • Proper ...

  • Answered by AI
  • Q2. Which one more efficiently? Air cooled,or water cooled???
  • Ans. 

    Water cooled systems are generally more efficient than air cooled systems due to higher heat transfer capabilities.

    • Water has higher heat transfer capabilities compared to air

    • Water cooled systems can maintain more consistent temperatures

    • Water cooled systems are typically used in high performance applications such as data centers and industrial machinery

  • Answered by AI
  • Q3. How we improved duct velocity?
  • Ans. 

    Duct velocity can be improved by increasing the fan speed or reducing the duct size.

    • Increase the fan speed to increase the air velocity in the duct.

    • Reduce the duct size to increase the air velocity.

    • Use dampers or adjustable louvers to control and optimize the airflow.

    • Ensure proper sealing of duct joints to minimize air leakage.

    • Consider using smooth and straight ducts to reduce friction and improve airflow.

    • Regularly cle...

  • Answered by AI
  • Q4. What types of gas use chiller system?
  • Ans. 

    The chiller system uses various types of gases for cooling purposes.

    • Common types of gases used in chiller systems include R-134a, R-410A, and ammonia.

    • R-134a is a hydrofluorocarbon (HFC) refrigerant commonly used in air conditioning systems.

    • R-410A is a blend of hydrofluorocarbons used as a replacement for older refrigerants.

    • Ammonia (NH3) is often used in industrial chiller systems due to its high cooling capacity.

    • Other ...

  • Answered by AI
  • Q5. How we decided the vrf system capacity as per area??
  • Ans. 

    The VRF system capacity is determined based on the area's cooling and heating load requirements.

    • Calculate the total cooling load and heating load for the area

    • Consider factors such as insulation, windows, occupancy, and equipment

    • Select VRF system capacity based on the calculated load requirements

    • Consult with HVAC professionals for accurate sizing

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Technical round is more important than other rounds so we should prepare that things very easily putting during interview and most important things candidates CV,whatever he mension his cv technically should be know very well' 🙏
Interview experience
4
Good
Difficulty level
Hard
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Walk-in and was interviewed before Dec 2022. There were 2 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Technical 

(2 Questions)

  • Q1. How connect internet to computer Answer: connect R j 45 divice
  • Ans. 

    To connect the internet to a computer, use an Ethernet cable (RJ-45) to connect the computer's Ethernet port to a modem or router.

    • Obtain an Ethernet cable (RJ-45)

    • Locate the Ethernet port on the computer

    • Connect one end of the Ethernet cable to the computer's Ethernet port

    • Connect the other end of the Ethernet cable to a modem or router

    • Ensure the modem or router is connected to the internet

    • Configure network settings on th

  • Answered by AI
  • Q2. What is duplex.
  • Ans. 

    Duplex is a communication mode that allows data to be transmitted in both directions simultaneously.

    • Duplex refers to the ability of a communication system to transmit and receive data at the same time.

    • It is commonly used in networking and telecommunications to describe the type of communication between devices.

    • There are two types of duplex: half-duplex and full-duplex.

    • In half-duplex, data can be transmitted in both dir...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Communication aditute skill is important

Skills evaluated in this interview

JLL Interview FAQs

What are the top questions asked in JLL Technical Engineer interview?

Some of the top questions asked at the JLL Technical Engineer interview -

  1. What is safety in ACB, VCB, DG s...read more
  2. What is working of transformer and it's working principle? Application of trans...read more
  3. What is working of ARD in li...read more

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JLL Technical Engineer Salary
based on 8 salaries
₹4 L/yr - ₹5.2 L/yr
19% less than the average Technical Engineer Salary in India
View more details

JLL Technical Engineer Reviews and Ratings

based on 7 reviews

4.5/5

Rating in categories

4.6

Skill development

4.2

Work-life balance

4.1

Salary

4.6

Job security

4.3

Company culture

3.8

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3.9

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