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Blue Star Interview Questions and Answers for Experienced

Updated 21 Jun 2025
Popular Designations

83 Interview questions

A Diploma Mechanical Engineer was asked 2mo ago
Q. How many chillers are there?
Ans. 

Chillers are crucial for cooling systems, with various types serving different applications in industries and buildings.

  • Types of chillers include air-cooled, water-cooled, and absorption chillers.

  • Air-cooled chillers are often used in smaller applications, like residential buildings.

  • Water-cooled chillers are more efficient and commonly used in larger commercial buildings.

  • Absorption chillers use heat sources, such a...

View all Diploma Mechanical Engineer interview questions
A Safety Officer was asked 2mo ago
Q. What is the procedure for conducting a risk assessment?
Ans. 

Risk assessment involves identifying hazards, evaluating risks, and implementing control measures to ensure safety.

  • Identify hazards: Recognize potential sources of harm, such as machinery, chemicals, or work practices.

  • Evaluate risks: Assess the likelihood and severity of harm from identified hazards, using a risk matrix.

  • Implement control measures: Develop strategies to eliminate or reduce risks, such as safety tra...

View all Safety Officer interview questions
A Safety Officer was asked 2mo ago
Q. What is the full form of ISO?
Ans. 

ISO stands for International Organization for Standardization, which develops and publishes international standards.

  • Founded in 1947, ISO is an independent, non-governmental international organization.

  • ISO standards cover various fields, including quality management (ISO 9001) and environmental management (ISO 14001).

  • ISO ensures consistency and quality across products and services globally.

  • ISO standards are develope...

View all Safety Officer interview questions
A Safety Officer was asked 2mo ago
Q. What is the function of the over hoist limit switch?
Ans. 

The over hoist limit switch prevents a hoist from lifting loads beyond a safe height, ensuring operational safety.

  • Acts as a safety mechanism to stop the hoist when the load reaches a predetermined height.

  • Prevents potential accidents or equipment damage by avoiding overextension.

  • Commonly used in cranes and elevators to ensure safe operation.

  • Example: In a construction crane, if the load reaches the maximum height, t...

View all Safety Officer interview questions
A Safety Officer was asked 2mo ago
Q. Classify the fire extinguishers.
Ans. 

Fire extinguishers are classified based on the type of fire they are designed to combat, ensuring effective fire suppression.

  • Class A: For ordinary combustibles like wood and paper (e.g., water extinguishers).

  • Class B: For flammable liquids such as gasoline and oil (e.g., foam extinguishers).

  • Class C: For electrical fires (e.g., CO2 extinguishers).

  • Class D: For combustible metals like magnesium (e.g., dry powder extin...

View all Safety Officer interview questions
A Safety Officer was asked 2mo ago
Q. How would you classify a fire?
Ans. 

Fires are classified into different classes based on their fuel sources and characteristics.

  • Class A: Ordinary combustibles (wood, paper, cloth). Example: burning paper.

  • Class B: Flammable liquids and gases (gasoline, oil). Example: a spilled gasoline fire.

  • Class C: Electrical fires (live electrical equipment). Example: a fire caused by faulty wiring.

  • Class D: Combustible metals (magnesium, titanium). Example: a fire ...

View all Safety Officer interview questions
A Safety Officer was asked 2mo ago
Q. Classify the hazard.
Ans. 

Hazards can be classified into categories like physical, chemical, biological, ergonomic, and psychosocial.

  • Physical hazards: Examples include slips, trips, and falls.

  • Chemical hazards: Exposure to toxic substances like asbestos or pesticides.

  • Biological hazards: Risks from bacteria, viruses, or mold.

  • Ergonomic hazards: Poor workstation design leading to repetitive strain injuries.

  • Psychosocial hazards: Stress from wor...

View all Safety Officer interview questions
Are these interview questions helpful?
A Commercial Executive was asked 3mo ago
Q. What is your experience with GST filing and GSTR 2B book versus statement reconciliation?
Ans. 

Understanding GST filing and the differences between GSTR 2B and books is crucial for compliance and accurate reporting.

  • GSTR 2B is an auto-generated statement reflecting eligible ITC based on GSTR 1 filed by suppliers.

  • Books of accounts are maintained by businesses to record all transactions, including sales and purchases.

  • Reconciliation between GSTR 2B and books ensures that claimed ITC matches the actual transacti...

View all Commercial Executive interview questions
A Hvac Site Engineer was asked 3mo ago
Q. If a chiller trips due to high pressure, what are the possible causes and how would you identify them?
Ans. 

Chiller trip HP can occur due to various issues; identifying the cause involves checking system parameters and components.

  • Check for low refrigerant levels; this can cause the chiller to trip due to insufficient cooling.

  • Inspect electrical connections and components for faults; loose connections can lead to power issues.

  • Monitor the temperature and pressure readings; abnormal values may indicate system malfunctions.

  • E...

View all Hvac Site Engineer interview questions
A Hvac Site Engineer was asked 3mo ago
Q. What is the step-by-step procedure to switch on a chiller plant?
Ans. 

A step-by-step process to safely start a chiller plant for efficient operation.

  • 1. Ensure all safety protocols are in place, including PPE for personnel.

  • 2. Check the chiller plant's control panel for any alarms or faults.

  • 3. Verify that all valves are in the correct position (open/closed) as per the operational requirements.

  • 4. Inspect the water supply and return lines for leaks or blockages.

  • 5. Start the chilled wate...

View all Hvac Site Engineer interview questions

Blue Star Interview Experiences for Experienced

106 interviews found

Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Naukri.com and was interviewed in Aug 2024. There were 2 interview rounds.

Round 1 - HR 

(2 Questions)

  • Q1. About myself and education skills
  • Q2. Working experience and knowledge about HVAC And all
Round 2 - Technical 

(2 Questions)

  • Q1. Knowledge about electronic component and gate .
  • Q2. Knowledge about repairing and installation and drive control and HVAC .

Interview Preparation Tips

Topics to prepare for Blue Star Electronics Engineer interview:
  • HVAC System
  • Electronic Circuit Design
  • Electronic Components
Interview experience
4
Good
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
-

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

Round 1 - Technical 

(2 Questions)

  • Q1. Technical maintenance
  • Q2. Please interview
Round 2 - Technical 

(1 Question)

  • Q1. Technical maintenance
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I appeared for an interview in May 2025, where I was asked the following questions.

  • Q1. Pervious work experience explanation
  • Ans. 

    I have extensive experience in electrical engineering, focusing on design, testing, and project management in various sectors.

    • Worked on a team to design a renewable energy system, improving efficiency by 20%.

    • Led a project to upgrade electrical systems in a manufacturing plant, reducing downtime by 15%.

    • Conducted testing and troubleshooting of electrical circuits, achieving a 98% success rate in resolving issues.

    • Collabor...

  • Answered by AI
  • Q2. Asking technical questions

Interview Preparation Tips

Interview preparation tips for other job seekers - Blue star in nice company

Senior HR Executive Interview Questions & Answers

user image Dipali Gharat

posted on 21 Jun 2025

Interview experience
4
Good
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I appeared for an interview in May 2025, where I was asked the following questions.

  • Q1. Why you are interested work with blue star?
  • Ans. 

    I am drawn to Blue Star for its innovation, commitment to quality, and strong values that align with my professional aspirations.

    • Blue Star's reputation for innovation in HVAC and refrigeration aligns with my passion for cutting-edge technology.

    • The company's commitment to sustainability resonates with my values, as I believe in promoting eco-friendly practices in HR.

    • I admire Blue Star's focus on employee development and...

  • Answered by AI
  • Q2. In which field are you interested in working?
  • Ans. 

    I am interested in working in the field of talent management and organizational development to enhance employee engagement and performance.

    • Focus on developing leadership programs to nurture future leaders, like mentorship initiatives.

    • Implement employee engagement surveys to gather feedback and improve workplace culture.

    • Design training programs that align with organizational goals, such as skills development workshops.

    • U...

  • Answered by AI

Interview Questions & Answers

user image Anonymous

posted on 29 Jul 2024

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. EHS System Management
  • Q2. Strategy to make EHS aligning with business priority
  • Ans. 

    Align EHS with business priorities by integrating EHS goals with overall business objectives and ensuring leadership support.

    • Integrate EHS goals with overall business objectives

    • Ensure leadership support for EHS initiatives

    • Develop metrics to measure EHS performance and impact on business outcomes

    • Provide regular updates to senior management on EHS progress and alignment with business priorities

  • Answered by AI
Round 2 - One-on-one 

(2 Questions)

  • Q1. Challenges face so far in your career?
  • Ans. 

    Some challenges I have faced in my career include adapting to new regulations, managing conflicting priorities, and implementing new technologies.

    • Adapting to new regulations in the industry

    • Managing conflicting priorities and deadlines

    • Implementing new technologies and systems

    • Dealing with resistance to change from team members

  • Answered by AI
  • Q2. What is your Aspiration from this role....
  • Ans. 

    To lead and develop a robust EHS system that ensures the safety and well-being of all employees and the environment.

    • Develop and implement comprehensive EHS policies and procedures

    • Ensure compliance with all relevant regulations and standards

    • Provide training and support to employees on EHS practices

    • Drive continuous improvement in EHS performance

    • Create a culture of safety and environmental responsibility

    • Collaborate with c...

  • Answered by AI

Interview Preparation Tips

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

I appeared for an interview in Apr 2025, where I was asked the following questions.

  • Q1. BOQ DETAILS AND MIR DETSILS.
  • Q2. GST DETAILS ,TDS DETSILS

Site Engineer Interview Questions & Answers

user image Anonymous

posted on 21 Apr 2024

Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
-

I applied via Campus Placement

Round 1 - Technical 

(4 Questions)

  • Q1. What makes ac to dc
  • Ans. 

    AC is converted to DC using a rectifier circuit.

    • AC to DC conversion is done using a rectifier circuit, which converts alternating current (AC) to direct current (DC).

    • Rectifier circuits can be half-wave or full-wave, depending on the type of rectification needed.

    • Examples of rectifier circuits include diode rectifiers, bridge rectifiers, and voltage multiplier circuits.

  • Answered by AI
  • Q2. What's materials used for earthing
  • Ans. 

    Materials commonly used for earthing include copper, galvanized steel, and conductive concrete.

    • Copper rods

    • Galvanized steel rods

    • Conductive concrete

    • Earthing strips

    • Earthing plates

  • Answered by AI
  • Q3. Full form of MCBA
  • Ans. 

    MCBA stands for Master of Construction Business Administration.

    • MCBA is a postgraduate degree program that focuses on the business aspects of the construction industry.

    • It covers topics such as project management, finance, marketing, and strategic planning.

    • Example: John completed his MCBA to advance his career in construction management.

  • Answered by AI
  • Q4. What is the standard earthing voltage
  • Ans. 

    The standard earthing voltage is typically 0 volts.

    • Standard earthing voltage is usually 0 volts to ensure safety in electrical systems

    • Earthing voltage can vary depending on the specific requirements of the system

    • Proper earthing helps to prevent electrical shocks and equipment damage

  • Answered by AI
Round 2 - One-on-one 

(2 Questions)

  • Q1. How long you can join
  • Ans. 

    I can join immediately or within a week, depending on the onboarding process and any necessary paperwork.

    • Immediate Availability: If there are no prior commitments, I can start right away.

    • Notice Period: If currently employed, I may need to serve a notice period, typically ranging from one to four weeks.

    • Onboarding Process: I understand that some companies have specific onboarding procedures that may require additional ti...

  • Answered by AI
  • Q2. As early as possible

Interview Preparation Tips

Topics to prepare for Blue Star Site Engineer interview:
  • Electrical Engineering
  • Mechanical
  • HVAC Engineering
  • Air Conditioning
Interview preparation tips for other job seekers - Read construction Site related questions
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

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

Round 1 - Technical 

(2 Questions)

  • Q1. What is ac laval interview
  • Q2. What is an AC interview
  • Ans. 

    An AC interview is a discussion between a potential candidate and an employer to assess the candidate's skills and experience in air conditioning systems.

    • An AC interview typically includes questions about the candidate's experience with HVAC systems, troubleshooting skills, and knowledge of refrigerants.

    • Candidates may be asked to demonstrate their ability to perform basic maintenance tasks on air conditioning units.

    • Emp...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - I am ac technician my have experienced 9 years .
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
More than 8 weeks
Result
Selected Selected

I appeared for an interview in Mar 2025, where I was asked the following questions.

  • Q1. Structure design
  • Q2. Communication skills
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I appeared for an interview in Feb 2025, where I was asked the following questions.

  • Q1. About Gst Filing and GSTR 2b Books Vs Statement reconsideration
  • Ans. 

    Understanding GST filing and the differences between GSTR 2B and books is crucial for compliance and accurate reporting.

    • GSTR 2B is an auto-generated statement reflecting eligible ITC based on GSTR 1 filed by suppliers.

    • Books of accounts are maintained by businesses to record all transactions, including sales and purchases.

    • Reconciliation between GSTR 2B and books ensures that claimed ITC matches the actual transactions r...

  • Answered by AI
  • Q2. Sap,Tally, Excel

Top trending discussions

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Interview Tips & Stories
1w
toobluntforu
·
works at
Cvent
Can speak English, can’t deliver in interviews
I feel like I can't speak fluently during interviews. I do know english well and use it daily to communicate, but the moment I'm in an interview, I just get stuck. since it's not my first language, I struggle to express what I actually feel. I know the answer in my head, but I just can’t deliver it properly at that moment. Please guide me
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Blue Star Interview FAQs

How many rounds are there in Blue Star interview for experienced candidates?
Blue Star interview process for experienced candidates usually has 2-3 rounds. The most common rounds in the Blue Star interview process for experienced candidates are Technical, Resume Shortlist and One-on-one Round.
How to prepare for Blue Star interview for experienced candidates?
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 Blue Star. The most common topics and skills that interviewers at Blue Star expect are HVAC, CCTV Monitoring, Mechanical Engineering, Manual Testing and Troubleshooting.
What are the top questions asked in Blue Star interview for experienced candidates?

Some of the top questions asked at the Blue Star interview for experienced candidates -

  1. Which refrigerant is currently used in Air conditioning systems now a d...read more
  2. What's a vfd? How does it functions? What's difference in vrf and vav system? W...read more
  3. What is the Enthalpy and Entropy, In Entropy how heat loss hap...read more
What are the most common questions asked in Blue Star HR round for experienced candidates?

The most common HR questions asked in Blue Star interview are for experienced candidates -

  1. Where do you see yourself in 5 yea...read more
  2. Why are you looking for a chan...read more
  3. What are your strengths and weakness...read more
How long is the Blue Star interview process?

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

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Overall Interview Experience Rating

4.2/5

based on 70 interview experiences

Difficulty level

Easy 18%
Moderate 76%
Hard 6%

Duration

Less than 2 weeks 73%
2-4 weeks 20%
4-6 weeks 2%
6-8 weeks 2%
More than 8 weeks 2%
View more
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based on 2.2k reviews

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3.7

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3.8

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3.8

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4.0

Company culture

3.5

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3.8

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