Think Gas Ludhiana Interview Questions, Process, and Tips

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

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

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

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

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

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

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

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

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

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

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

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

Account entries are financial transactions recorded in the general ledger.

• Account entries are used to record the inflow and outflow of money in an organization.

• They include debits and credits to various accounts.

• Examples of account entries include recording sales revenue, expenses, and asset purchases.

• Account entries must follow the double-entry bookkeeping system, where every debit entry must have a corresponding cred...read more