Manager - Piping Interview Questions and Answers

Pipe thickness calculation as per ASME b31.3 and well head piping.

• Pipe thickness calculation involves determining the required wall thickness to withstand the internal pressure and external loads.

• ASME B31.3 provides guidelines for process piping while wellhead piping requires additional considerations such as corrosion and erosion.

• Factors such as material properties, design temperature, and pressure rating are also taken into account.

• Various methods such as the Barlow's formu...read more

Killed steel is a type of steel that has been deoxidized with an agent such as silicon or aluminum to prevent gas pockets and improve its properties.

• Killed steel is commonly used in the production of high-strength steel products such as structural steel, shipbuilding steel, and pipeline steel.

• The deoxidizing agent reacts with the oxygen and other impurities in the molten steel to form a slag, which is then removed from the surface of the steel.

• This process helps to prevent ga...read more

Stress factor in piping is calculated using formulas based on material properties, operating conditions, and design codes.

• Calculate stress due to internal pressure, external loads, thermal expansion, etc.

• Consider material properties like yield strength, modulus of elasticity, and temperature limits.

• Refer to design codes like ASME B31.3 for guidelines on stress calculations.

• Use software tools like CAESAR II for accurate stress analysis.

• Ensure compliance with safety standards t...read more

Productivity norms in Piping refer to the expected output or efficiency levels for piping work.

• Productivity norms are typically set based on industry standards and past project data.

• Factors influencing productivity norms in piping include complexity of design, availability of resources, and skill level of workers.

• For example, a productivity norm for welding joints in a certain type of piping may be set at 10 joints per hour based on historical data.

• Regular monitoring and adju...read more