L&T Energy Hydrocarbon Interview Questions, Process, and Tips

ITP stands for Inspection and Test Plan. Sensitization is a process where stainless steel loses its corrosion resistance due to high temperature exposure.

• ITP is a document that outlines the inspection and testing requirements for a project.

• It includes details on the materials, equipment, and procedures to be used.

• Sensitization occurs when chromium carbides form in the grain boundaries of stainless steel, reducing its c...read more

WPS stands for Welding Procedure Specification and PQR stands for Procedure Qualification Record.

• WPS is a document that provides detailed instructions on how to perform a specific welding procedure.

• It includes information on welding parameters, materials, joint design, and pre- and post-welding treatments.

• PQR is a record that documents the results of a procedure qualification test.

• It verifies that a specific welding pr...read more

Loading according to UG-22 refers to the applied forces and moments on static equipment as per the ASME Boiler and Pressure Vessel Code.

• UG-22 of the ASME Code provides guidelines for determining the loading conditions on static equipment such as pressure vessels and heat exchangers.

• Loading includes both internal and external forces and moments that act on the equipment.

• Internal loading includes pressure, temperature, a...read more

S&T heat exchangers include shell and tube, plate and frame, and spiral heat exchangers.

• Shell and tube heat exchangers are the most common type.

• Plate and frame heat exchangers are compact and efficient.

• Spiral heat exchangers are used for high-viscosity fluids.

• Other types include double pipe, finned tube, and air-cooled heat exchangers.