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Daikin Airconditioning India Pvt. Ltd. Assembly Engineer Interview Questions and Answers
14 Interview questions
Using two adjustable spanners to tighten a flare nut in a union can lead to it loosening due to uneven pressure distribution.
Using two adjustable spanners can result in uneven pressure being applied to the flare nut
This can cause the flare nut to become loose over time
It is recommended to use a proper flare nut wrench for tightening flare nuts in unions
AC works by transferring heat from inside a building to outside, using a refrigeration cycle.
AC units contain a refrigerant that absorbs heat from indoor air and releases it outside.
The refrigerant evaporates at low pressure and temperature, absorbing heat in the process.
The refrigerant is then compressed, raising its temperature and pressure, before releasing the heat outside.
The cycle continues to maintain a com...
Coils are often used in gas leaks to detect the presence of gas due to their sensitivity to changes in electrical resistance.
Coils are commonly used in gas leak detectors because they can detect changes in electrical resistance caused by the presence of gas
The coil is typically part of a sensor that is designed to trigger an alarm or signal when a gas leak is detected
The coil may be connected to a circuit that mea...
The gases in an AC unit typically include refrigerant gases such as R-410A or R-22.
Refrigerant gases are used in AC units to absorb and release heat in order to cool the air.
Common refrigerant gases used in AC units include R-410A (Puron) and R-22 (Freon).
These gases circulate through the AC system in a continuous cycle to facilitate the cooling process.
The copper pipe between indoor and outdoor units is covered by foam and white roll for insulation and protection against external elements.
The foam provides insulation to prevent heat loss or gain during the refrigerant transfer process
The white roll acts as a protective layer to shield the copper pipe from external damage such as UV rays, moisture, and physical impact
The insulation and protection help maintain th...
The tools used in One AC installation include screwdrivers, pliers, wire strippers, and a multimeter.
Screwdrivers are used to tighten or loosen screws during installation.
Pliers are used for gripping and bending wires or components.
Wire strippers are used to remove insulation from wires.
A multimeter is used to measure voltage, current, and resistance in the AC system.
Vaccuuming the AC indoor helps remove dust, dirt, and debris that can accumulate and block airflow, leading to inefficient cooling and potential damage to the system.
Vaccuuming helps improve the efficiency of the AC system by ensuring proper airflow.
It helps prevent blockages caused by dust and debris, which can lead to overheating and system malfunctions.
Regular vaccuuming can prolong the lifespan of the AC unit ...
The indoor unit and outdoor unit coils are typically made of metals such as copper, aluminum, or a combination of both.
Common metals used in coils are copper and aluminum
Some coils may be made of a combination of copper and aluminum for better heat transfer
Other metals like steel may also be used in some cases
The AC may be cut off due to various reasons such as power outage, malfunctioning components, or scheduled maintenance.
Power outage: AC will be cut off if there is a power outage in the building.
Malfunctioning components: If any part of the AC system malfunctions, it may be cut off to prevent further damage.
Scheduled maintenance: AC may be cut off temporarily for routine maintenance to ensure optimal performance.
Time study is a method used to determine the time required to perform a specific task or activity.
Time study involves observing and timing each step of a process to calculate the total time needed.
It helps in identifying inefficiencies, improving productivity, and setting realistic production goals.
Time study can be conducted using various techniques such as direct observation, work sampling, or predetermined moti...
Daikin Airconditioning India Pvt. Ltd. Assembly Engineer Interview Experiences
3 interviews found
Anonymous
I applied via Naukri.com and was interviewed in Aug 2023. There were 2 interview rounds.
(7 Questions)
- Q1. How does AC work what it's principle
- Ans.
AC works by transferring heat from inside a building to outside, using a refrigeration cycle.
AC units contain a refrigerant that absorbs heat from indoor air and releases it outside.
The refrigerant evaporates at low pressure and temperature, absorbing heat in the process.
The refrigerant is then compressed, raising its temperature and pressure, before releasing the heat outside.
The cycle continues to maintain a comforta...
- Q2. What kind of gases are in AC
- Ans.
The gases in an AC unit typically include refrigerant gases such as R-410A or R-22.
Refrigerant gases are used in AC units to absorb and release heat in order to cool the air.
Common refrigerant gases used in AC units include R-410A (Puron) and R-22 (Freon).
These gases circulate through the AC system in a continuous cycle to facilitate the cooling process.
- Q3. What kind of metals in indoor unit and outdoor unit coil
- Ans.
The indoor unit and outdoor unit coils are typically made of metals such as copper, aluminum, or a combination of both.
Common metals used in coils are copper and aluminum
Some coils may be made of a combination of copper and aluminum for better heat transfer
Other metals like steel may also be used in some cases
- Q4. Why the copper pipe between indoor unit and outdoor unit is covered by foam and white roll
- Ans.
The copper pipe between indoor and outdoor units is covered by foam and white roll for insulation and protection against external elements.
The foam provides insulation to prevent heat loss or gain during the refrigerant transfer process
The white roll acts as a protective layer to shield the copper pipe from external damage such as UV rays, moisture, and physical impact
The insulation and protection help maintain the eff...
- Q5. Why we loosing the flare nut in union is kept by two adjustable spanner
- Ans.
Using two adjustable spanners to tighten a flare nut in a union can lead to it loosening due to uneven pressure distribution.
Using two adjustable spanners can result in uneven pressure being applied to the flare nut
This can cause the flare nut to become loose over time
It is recommended to use a proper flare nut wrench for tightening flare nuts in unions
- Q6. Why the AC will be cut offed what is cut of
- Ans.
The AC may be cut off due to various reasons such as power outage, malfunctioning components, or scheduled maintenance.
Power outage: AC will be cut off if there is a power outage in the building.
Malfunctioning components: If any part of the AC system malfunctions, it may be cut off to prevent further damage.
Scheduled maintenance: AC may be cut off temporarily for routine maintenance to ensure optimal performance.
- Q7. What are the tools used in One AC installed
- Ans.
The tools used in One AC installation include screwdrivers, pliers, wire strippers, and a multimeter.
Screwdrivers are used to tighten or loosen screws during installation.
Pliers are used for gripping and bending wires or components.
Wire strippers are used to remove insulation from wires.
A multimeter is used to measure voltage, current, and resistance in the AC system.
(3 Questions)
- Q1. What are the types of AC
- Ans.
Types of AC include window AC, split AC, central AC, portable AC, and ductless mini-split AC.
Window AC: typically installed in a window and cools a single room
Split AC: consists of two units - one indoor and one outdoor - connected by refrigerant lines
Central AC: cools the entire house through a system of ducts
Portable AC: can be moved from room to room and does not require installation
Ductless Mini-Split AC: similar t...
- Q2. Why we are vaccumming the AC indoor
- Ans.
Vaccuuming the AC indoor helps remove dust, dirt, and debris that can accumulate and block airflow, leading to inefficient cooling and potential damage to the system.
Vaccuuming helps improve the efficiency of the AC system by ensuring proper airflow.
It helps prevent blockages caused by dust and debris, which can lead to overheating and system malfunctions.
Regular vaccuuming can prolong the lifespan of the AC unit and r...
- Q3. Why the coil is in gas leak
- Ans.
Coils are often used in gas leaks to detect the presence of gas due to their sensitivity to changes in electrical resistance.
Coils are commonly used in gas leak detectors because they can detect changes in electrical resistance caused by the presence of gas
The coil is typically part of a sensor that is designed to trigger an alarm or signal when a gas leak is detected
The coil may be connected to a circuit that measures...
(6 Questions)
- Q1. What is time study
- Ans.
Time study is a method used to determine the time required to perform a specific task or activity.
Time study involves observing and timing each step of a process to calculate the total time needed.
It helps in identifying inefficiencies, improving productivity, and setting realistic production goals.
Time study can be conducted using various techniques such as direct observation, work sampling, or predetermined motion ti...
- Q2. Manpower handling
- Q3. What is your KPI
- Ans.
My KPI as an Assembly Engineer is to ensure efficient assembly processes, high-quality output, and meeting production targets.
Ensuring efficient assembly processes by optimizing workflow and minimizing downtime
Maintaining high-quality output by implementing quality control measures and conducting regular inspections
Meeting production targets by monitoring productivity, identifying bottlenecks, and implementing improvem...
- Q4. What is your weekness
- Q5. What is special in you current company
- Ans.
My current company excels in innovation, teamwork, and a commitment to quality in assembly engineering.
Strong focus on continuous improvement, exemplified by our recent implementation of lean manufacturing principles.
Collaborative work environment that encourages cross-departmental communication, leading to faster problem-solving.
Investment in employee training programs, such as workshops on the latest assembly technol...
- Q6. Please difine you objective
- Ans.
My objective is to contribute to innovative assembly processes, ensuring quality and efficiency in engineering projects.
Enhance assembly line efficiency by implementing lean manufacturing principles.
Utilize CAD software to design and optimize assembly layouts.
Collaborate with cross-functional teams to troubleshoot and resolve assembly issues.
Conduct regular quality checks to maintain high standards in production.
Interview Preparation Tips
(2 Questions)
- Q1. Filter types and air
- Ans.
Different types of filters are used in air systems to remove contaminants and improve air quality.
There are various types of filters such as HEPA filters, activated carbon filters, and electrostatic filters.
HEPA filters are highly efficient at removing particles as small as 0.3 microns.
Activated carbon filters are effective at removing odors and gases.
Electrostatic filters use an electric charge to attract and trap par...
- Q2. Dry air and moisture
Interview Preparation Tips
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Dharmveer Kashyap
Selected
I applied via Approached by Company
(2 Questions)
- Q1. PCV programming
- Q2. Properly a.c assembly
I applied via Naukri.com and was interviewed in May 2019. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. Questions were asked on Lean, six sigma, process capability, QC, kaizens etc.
Interview Preparation Tips
I applied via Naukri.com and was interviewed before Sep 2020. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. How would you adjust with our culture?
- Ans. Being Asian mnc, LG culture is quite different s, work from home is strictly not allowed. But I said culture won't affect as long as you enjoy work. But now I feel the gravity of question after six months. If you are ready to accept harsh working hours and almost no work life balance then you may join LG
Interview Preparation Tips
I applied via Campus Placement and was interviewed before Mar 2021. There were 5 interview rounds.
(3 Questions)
- Q1. What are your strengths and weaknesses?
- Q2. Tell me about yourself.
- Q3. What is your family background?
- Ans.
My family background is diverse and has shaped me into a well-rounded individual.
My parents come from different cultural backgrounds, which has exposed me to different traditions and perspectives.
I have siblings who have pursued various career paths, which has influenced my own career choices.
My family has always emphasized the importance of education and hard work.
We have a strong sense of community and often engage i...
Simple aptitude questions which can be cleared upon basic preparation of quants and LR
General topics and current affairs
(1 Question)
- Q1. So tell me what are you looking for out of this job?
Interview Preparation Tips
Interview Questionnaire
2 Questions
- Q1. Basic HVAC knowledge like how Airconditioning works?
- Ans.
Air conditioning cools air by removing heat and humidity, using a refrigeration cycle involving refrigerants.
1. Refrigeration Cycle: Air conditioning systems use a refrigeration cycle, which involves evaporating and condensing refrigerants.
2. Components: Key components include the compressor, condenser, expansion valve, and evaporator.
3. Heat Exchange: The evaporator absorbs heat from indoor air, while the condenser re...
- Q2. What exactly your profile in your current company?
- Ans.
I am currently working as a Senior Sales Executive in my current company.
Responsible for managing a team of sales representatives
Developing and implementing sales strategies to achieve targets
Building and maintaining relationships with key clients
Analyzing market trends and competitor activities
Preparing sales reports and presenting them to senior management
Selected
I applied via Approached by Company and was interviewed before Jun 2023. There was 1 interview round.
(2 Questions)
- Q1. MOST details of general move control and tool use sequence model
- Q2. Cadd design and LOB
Interview Preparation Tips
(6 Questions)
- Q1. Too much technical about RAC
- Ans. Latent heat, sensible heat, heat load calculation
- Q2. How to convert a plus chiller to minus chiller package
- Ans.
To convert a plus chiller to a minus chiller package, the refrigeration system needs to be modified to accommodate the change in temperature requirements.
Modify the refrigeration system to allow for lower temperatures
Adjust the settings and controls to operate at negative temperatures
Install additional insulation to maintain lower temperatures
Replace any components that are not rated for sub-zero temperatures
- Q3. Few technicalities which can help you answer on HVAC segment
- Ans. How to design & built a project using Autocad2D
- Q4. Difference between inverter and fixed speed
- Ans.
Inverter changes speed based on load, while fixed speed operates at a constant speed.
Inverter adjusts motor speed to match the required load, saving energy and reducing wear and tear.
Fixed speed motors operate at a constant speed regardless of the load, leading to higher energy consumption.
Inverter technology is commonly used in air conditioners and refrigerators for energy efficiency.
Fixed speed motors are often found...
- Q5. How is pumps HP calculated
- Ans.
Pump HP is calculated using the formula: HP = (Q x H) / (3960 x Efficiency)
HP = Horsepower of the pump
Q = Flow rate of the pump in gallons per minute (GPM)
H = Total head in feet
Efficiency = Efficiency of the pump as a decimal
- Q6. What is suction head
- Ans.
Suction head is the vertical distance between the pump impeller and the surface of the liquid being pumped.
Suction head is important in determining the efficiency of a pump.
It is crucial for ensuring that the pump does not cavitate, which can damage the pump.
Examples of suction head include static suction head and dynamic suction head.
(8 Questions)
- Q1. Chiller selection based on which parameters
- Ans.
Chiller selection is based on various parameters such as cooling capacity, efficiency, size, noise level, and cost.
Cooling capacity: Determine the required cooling capacity based on the size of the space and heat load.
Efficiency: Look for energy-efficient models to reduce operating costs.
Size: Consider the physical dimensions of the chiller to ensure it fits in the designated space.
Noise level: Choose a chiller with lo...
- Q2. Inlet & outlet temp for both evap & Cond If aircooled ambient prescription in ISHRAE
- Ans.
The inlet and outlet temperatures for both the evaporator and condenser depend on the ambient conditions prescribed by ISHRAE.
Inlet and outlet temperatures for the evaporator and condenser will vary based on the ambient conditions specified by ISHRAE standards.
For air-cooled systems, the inlet temperature for the evaporator is typically higher than the outlet temperature, while the opposite is true for the condenser.
IS...
- Q3. VRF : what is diversity, how it helps to gain more bookings
- Q4. How to design ODU VRF with AHU
- Ans.
Designing ODU VRF with AHU involves selecting compatible units, determining capacity requirements, and ensuring proper installation.
Select compatible ODU VRF and AHU units based on capacity and efficiency requirements
Calculate the total cooling and heating load of the space to determine the capacity needed
Design the refrigerant piping and electrical connections between the ODU VRF and AHU
Ensure proper ventilation and a...
- Q5. How refnets are calculated
- Ans.
Refnets are calculated based on the number of referrals made by an individual.
Refnets are typically calculated by counting the number of referrals made by an individual.
The formula for calculating refnets may vary depending on the specific program or system being used.
Refnets can be used to track the effectiveness of referral programs and the performance of individuals in generating referrals.
- Q6. In chilled water syatem where is PIBCV valves are installed
- Ans.
PIBCV valves are typically installed on the supply side of the chilled water system.
PIBCV valves are installed on the supply side to control the flow of chilled water into the system.
They are often located near the chillers or air handling units.
PIBCV valves help regulate the temperature of the chilled water circulating in the system.
These valves are crucial for maintaining the efficiency and performance of the chilled...
- Q7. What is IK/TR & What is NPLV
- Ans.
IK/TR stands for Installment Key/Total Receivables and NPLV stands for Net Present Loan Value.
IK/TR is a financial metric used to calculate the ratio of total installment payments to total receivables.
NPLV is a financial metric used to determine the net present value of a loan.
IK/TR is important for assessing the repayment capacity of borrowers, while NPLV helps in evaluating the profitability of loans.
Example: If a bo...
- Q8. What is MaX COP of VRF vs Chillers
- Ans.
The MaX COP of VRF systems is typically higher than that of chillers.
VRF systems generally have a higher COP (Coefficient of Performance) compared to chillers.
VRF systems can achieve COP values of 4 or higher, while chillers typically have COP values around 2 to 3.
The higher COP of VRF systems makes them more energy efficient and cost-effective in the long run.
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Junior Engineer
992
salaries
|  ₹2.3 L/yr - ₹4.7 L/yr |
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Assistant Engineer
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salaries
| ₹3 L/yr - ₹7.3 L/yr |
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Engineer
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salaries
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Diploma Trainee Engineer
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| ₹1.8 L/yr - ₹3.2 L/yr |
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| ₹9.5 L/yr - ₹16.2 L/yr |
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