BlueSurf Technologies Interview Questions and Answers

Q1. School, college name, passout year, marks, Percentage, etc. All genuine questions only. Previous company experience. Reason for change, etc.
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Q1. What grades of steel pipe used in cgd?
Ans. 
Various grades of steel pipe are used in CGD (City Gas Distribution).
• Different grades of steel pipe are used in CGD based on factors like pressure rating, temperature, and application requirements.

• Common grades of steel pipe used in CGD include API 5L Grade B, ASTM A106 Grade B, and ASTM A333 Grade 6.

• Higher grades of steel pipe may be used for high-pressure applications or in corrosive environments.

• The selection of ste...read more
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Q2. Which type of welding and what electrode is used ?
Ans. 
The type of welding and electrode used depends on the specific application and materials being joined.
• Common types of welding include arc welding, MIG welding, TIG welding, and spot welding.

• The choice of welding method depends on factors such as the type of metal, thickness, and desired weld quality.

• For example, arc welding often uses electrodes made of materials like carbon steel, stainless steel, or cast iron.

• MIG wel...read more
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Q3. What is meant by E6010
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E6010 is a type of electrode used in welding that produces deep penetration and is commonly used for welding in the vertical and overhead positions.
• E6010 is a classification of welding electrode according to the American Welding Society (AWS) system.

• It is a cellulose-based electrode that provides excellent arc stability and deep penetration.

• The 'E' in E6010 stands for electrode, while the '60' indicates the tensile str...read more
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Q4. How hydrotest is done. Explain in details with formula for air volume calculation.
Ans. 
Hydrotest is a process of testing the strength and integrity of a pressure vessel or pipeline.
• Hydrotest involves filling the vessel or pipeline with water and pressurizing it to a specified level.

• The pressure is held for a specified duration to ensure there are no leaks or failures.

• Air volume calculation is used to determine the amount of air needed to pressurize the vessel or pipeline.

• The formula for air volume calcul...read more
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Q5. What is dead weight tester and what is its working principle.
Ans. 
A dead weight tester is a device used to calibrate pressure gauges by applying known weights to a piston.
• Consists of a piston-cylinder assembly and a set of calibrated weights

• Weights are placed on the piston to generate a known pressure

• Pressure generated is compared to the reading on the gauge being calibrated

• Used for high-precision calibration of pressure gauges

• Commonly used in industries such as oil and gas, aerospac
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Q6. What types of defects in welding and what is acceptance criteria of common defects ?
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Common welding defects include porosity, undercutting, and lack of fusion. Acceptance criteria vary based on the type of defect.
• Porosity: voids or gas pockets in the weld. Acceptance criteria depend on the size and location of the porosity.

• Undercutting: groove in the base metal near the weld. Acceptance criteria depend on the depth and length of the undercut.

• Lack of fusion: incomplete bonding between the weld and base ...read more
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Q7. What is dwell time in DPT ?
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Q8. What is WPS, PQR, WQT, EQT, etc?
Ans. 
WPS is Welding Procedure Specification, PQR is Procedure Qualification Record, WQT is Welder Qualification Test, EQT is Equipment Qualification Test.
• WPS is a document that outlines the welding process to be used for a specific job.

• PQR is a record of the welding parameters used during a test weld.

• WQT is a test that certifies a welder's ability to perform a specific type of welding.

• EQT is a test that certifies the equipm
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Q9. What is difference between seam pipe and seamless pipe ? Which pipe are used in cgd and why ?
Ans. 
Seam pipe has a welded seam while seamless pipe is made without any seam. CGD uses seamless pipes for better safety and efficiency.
• Seam pipes have a welded seam while seamless pipes are made without any seam.

• Seam pipes are cheaper than seamless pipes.

• Seamless pipes are stronger and more reliable than seam pipes.

• CGD (City Gas Distribution) uses seamless pipes for better safety and efficiency.

• Seamless pipes are used in h...read more
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Q10. What is TCP and what purpose it serve ?
Ans. 
TCP is a protocol that provides reliable, ordered, and error-checked delivery of data between applications.
• TCP stands for Transmission Control Protocol.

• It is a connection-oriented protocol that operates at the transport layer of the OSI model.

• TCP provides reliable, ordered, and error-checked delivery of data between applications.

• It establishes a connection between two hosts and ensures that data is transmitted correctl...read more
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Q11. What is normal psp level ?
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Q12. Which is longest pipeline route in India and World ?
Ans. 
The longest pipeline route in India is the 1,397 km long Mundra-Pathanamthitta pipeline. The longest pipeline in the world is the Druzhba pipeline.
• The Mundra-Pathanamthitta pipeline is used to transport crude oil from Gujarat to Kerala.

• The Druzhba pipeline is a network of pipelines that runs from Russia to several European countries.

• The Druzhba pipeline is approximately 4,000 km long.

• Other long pipelines in India inclu...read more
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Q1. Confidential ,this shall not be explained
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Q1. Salary discussion
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Q1. Didn't Remember
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Q1. Total Focused on GIS
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Q2. Personal Questions
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Q1. Nothing Special
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Q1. PNG for Industries and commercial
Ans. 
PNG (Portable Network Graphics) is a popular image format commonly used in industries and commercial settings.
• PNG files support transparent backgrounds, making them ideal for logos and graphics on websites.

• They use lossless compression, preserving image quality while reducing file size.

• PNG files are widely used in industries such as graphic design, web development, and printing.

• Commercial applications include advertisi
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Q1. Industrial gas price Calorific value
Ans. 
Industrial gas price is determined by factors such as supply and demand, production costs, and market competition. Calorific value refers to the amount of heat released during combustion.
• Industrial gas prices are influenced by factors like supply and demand dynamics in the market.

• Production costs, including raw materials and labor, play a significant role in determining the price of industrial gases.

• Market competition ...read more
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Q1. How to handle emergency PE pipeline damages ?
Ans. 
Emergency PE pipeline damages can be handled by following proper protocols and procedures.
• Immediately isolate the damaged section of the pipeline to prevent further leakage or damage.

• Notify the relevant authorities and emergency response teams to assess the situation and provide assistance.

• Implement temporary repairs or containment measures to minimize the impact of the damage.

• Coordinate with the appropriate stakeholde...read more
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Q2. What kind of instruments are there in District Regulating Skid ???
Ans. 
District Regulating Skid instruments include pressure gauges, flow meters, control valves, and temperature sensors.
• Pressure gauges are used to measure the pressure of the fluid in the skid.

• Flow meters are used to measure the flow rate of the fluid passing through the skid.

• Control valves are used to regulate the flow or pressure of the fluid.

• Temperature sensors are used to measure the temperature of the fluid in the ski
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Q1. Tell me about your self ???
Ans. 
I am a highly experienced Senior Engineer with a strong background in software development and project management.
• Over 10 years of experience in software development

• Proficient in multiple programming languages such as Java, C++, and Python

• Extensive knowledge of software development methodologies and best practices

• Proven track record of successfully leading and delivering complex projects

• Strong problem-solving and analy...read more
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Q1. PSSR ,HAZOP,PNGRB GUIDELINES,BACK EXPERIENCE
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OISD,T4S,H2S,PSSR,MOCK DRILL, REPORT,BACK EXPERIENCE,TEAM MANAGEMENT

Q1. Salary discuss with HR
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Q1. What is the difference between pe80 and pe 100.
Ans. 
PE80 and PE100 are types of polyethylene pipes with different pressure ratings and material properties.
• PE80 has a minimum required strength (MRS) of 8 MPa, while PE100 has an MRS of 10 MPa.

• PE100 has better resistance to stress cracking and higher pressure rating compared to PE80.

• PE100 is typically used for higher pressure applications such as gas distribution, while PE80 is used for lower pressure applications like wat...read more
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Q1. How many group of your company.
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Q1. What is sales. Customer service
Ans. 
Sales is the process of convincing potential customers to buy a product or service.
• Identifying potential customers

• Understanding their needs and preferences

• Presenting the product or service in a compelling way

• Overcoming objections and addressing concerns

• Closing the sale and following up with customers

• Building long-term relationships with customers

• Examples: selling cars, insurance policies, software solutions, etc.
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Q2. How to Customer setisfy
Ans. 
Customer satisfaction can be achieved by understanding their needs and providing excellent service.
• Listen actively to their concerns and needs

• Provide prompt and efficient service

• Offer personalized solutions

• Follow up to ensure their satisfaction

• Provide clear communication and transparency

• Offer incentives and rewards for loyalty

• Continuously improve and innovate to meet their changing needs
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Q3. Customer benefit for company
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Customers benefit from the company's products or services in various ways.
• Improved productivity and efficiency

• Cost savings

• Enhanced customer experience

• Increased revenue and profits

• Access to new markets and opportunities

• Innovative solutions to meet their needs

• Stronger brand reputation and loyalty
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