JLL Technical Engineer Interview Questions, Process, and Tips

Q1. About Binary search
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Q1. About project and ER diagram
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Q1. Why we using PAC in server room.?
Ans. 
PAC is used in server rooms for temperature and humidity control.
• PAC stands for Precision Air Conditioning.

• It helps maintain a stable environment for servers and other equipment.

• PAC units have advanced sensors and controls to regulate temperature and humidity.

• Without PAC, server rooms can experience overheating and equipment failure.

• Examples of PAC brands include Liebert, APC, and Mitsubishi Electric.
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Q2. How to utilise the budget.?
Ans. 
Utilize the budget by prioritizing needs, setting realistic goals, and monitoring expenses.
• Identify the most important needs and allocate funds accordingly

• Set achievable goals and create a budget plan

• Regularly monitor expenses and adjust the budget as needed

• Consider investing in cost-saving measures or technologies

• Avoid unnecessary expenses and prioritize long-term investments
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Q3. Why you moving to here.?
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I am moving here for better career opportunities and to explore a new city.
• Better career opportunities in my field

• Desire to explore a new city and culture

• Personal reasons such as being closer to family or friends
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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...read more
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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.
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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 ...read more
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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
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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...read more
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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...read more
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Q1. LT Side Equipments
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Q1. Introduction & Salary
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Easy Lettcode questions multiple

Q1. Lld round with java
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Q1. JavaScript question
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Q1. Coding questions
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