Naptune Powertech Energy Services Interview Questions, Process, and Tips for Experienced

Valves are mechanical devices used to control the flow of fluids within a piping system.

• Regulating flow of fluids

• Stopping and starting flow

• Preventing backflow

• Pressure control

• Temperature control

Isolation valves are types of valves used to completely stop the flow of fluid in a piping system.

• Isolation valves are typically used to isolate a section of piping for maintenance or repair purposes.

• They are designed to completely stop the flow of fluid when closed.

• Common types of isolation valves include ball valves, gate valves, and butterfly valves.

• Isolation valves are essential for ensuring the safety and efficien

Regulations valves are valves that are designed and manufactured to meet specific industry standards and regulations.

• Regulations valves are used in various industries such as oil and gas, petrochemical, and pharmaceutical.

• These valves are built to comply with specific codes and standards set by organizations like ASME, API, and ISO.

• They are essential for ensuring safety, efficiency, and compliance with regulatory requi...read more

Special valves are valves designed for specific applications or functions in piping systems.

• Special valves are designed to meet specific requirements in piping systems

• They may have unique features such as pressure relief, flow control, or isolation capabilities

• Examples include pressure relief valves, control valves, and isolation valves

Types of compressor drives include electric motor, gas turbine, steam turbine, and diesel engine.

• Electric motor

• Gas turbine

• Steam turbine

• Diesel engine

Towers in piping systems are structures used to support equipment, such as vessels, exchangers, and columns.

• Distillation towers

• Cooling towers

• Flare towers

• Fractionation towers

• Reboiler towers

Feed nozzles can be located by referring to the piping and instrumentation diagram (P&ID) and conducting a physical inspection of the equipment.

• Refer to the piping and instrumentation diagram (P&ID) to identify the location of the feed nozzle

• Conduct a physical inspection of the equipment to visually locate the feed nozzle

• Use equipment tags or labels to help identify the feed nozzle location

• Consult with other team membe...read more

Wetted parts of valves are the components that come in contact with the fluid being controlled by the valve.

• Wetted parts include the valve body, seat, disc, stem, and any internal components that are in direct contact with the fluid.

• These parts are typically made of materials that are compatible with the fluid to prevent corrosion or contamination.

• Examples of wetted parts materials include stainless steel, brass, bronz...read more

Two types of ball valves are floating ball valve and trunnion ball valve. Isometrics drawings are 3D representations of piping systems.

• Floating ball valve has a floating ball design that seals against the seat under pressure.

• Trunnion ball valve has a fixed ball design that is supported by trunnion bearings.

• Isometrics drawings are detailed 3D representations of piping systems showing the layout, dimensions, and connecti...read more

Feed nozzles can be located by referring to piping and instrumentation diagrams (P&IDs) and equipment layout drawings.

• Refer to P&IDs to identify the location of feed lines and nozzles

• Consult equipment layout drawings to pinpoint the exact location of feed nozzles on equipment

• Use isometric drawings to visualize the piping layout and locate feed nozzles accurately