Indraprastha Gas Third Party Inspector Interview Questions and Answers

Various types of pipes are used in gas supply including steel, copper, polyethylene, and PVC.

• Steel pipes are commonly used for high-pressure gas transmission lines.

• Copper pipes are used for indoor gas lines and have good corrosion resistance.

• Polyethylene pipes are flexible and can be used for both underground and aboveground gas lines.

• PVC pipes are used for low-pressure gas distribution lines and have good chemical res...read more

Pressure to be supplied at various points in a Third Party Inspection Engineer role.

• The pressure at the tapping point refers to the pressure required for taking a sample or measurement from a pipeline.

• The pressure at the nozzle refers to the pressure required for the efficient operation of a specific equipment or device.

• The main gas pipeline pressure refers to the pressure required for the overall functioning and distr...read more

Types of joints include butt joint, lap joint, T-joint, corner joint, and edge joint.

• Butt joint: Two pieces of material are joined by their ends.

• Lap joint: One piece overlaps the other and they are fastened together.

• T-joint: One piece is perpendicular to the other, forming a T shape.

• Corner joint: Two pieces are joined at a right angle.

• Edge joint: Two pieces are joined along their edges.

Yes, various pipes with different diameters can be fitted.

• Different pipes can be fitted by using appropriate connectors or adapters.

• Measurements of the pipes' diameters should be taken accurately to ensure proper fitting.

• Consideration should be given to the flow requirements and pressure ratings of the pipes.

• Examples of fittings include couplings, reducers, elbows, and tees.

Tapping is a process of making a hole in a pipe or vessel for connecting a branch pipe. A riser is a vertical pipe used to transport fluids from a lower level to a higher level.

• Tapping is done to connect a branch pipe to the main pipe or vessel.

• Risers are commonly used in oil and gas drilling to transport drilling fluids from the wellbore to the surface.

• Tapping and riser installation should be done carefully to avoid l...read more

The steam turbines rotor puts load on the thrust bearing.

• The steam turbines rotor puts load on the thrust bearing.

• The thrust bearing is designed to handle the axial load generated by the rotor.

• Other bearings in the steam turbine, such as journal bearings, handle radial loads.

• The thrust bearing is typically located at the non-drive end of the rotor.

• Examples of thrust bearings used in steam turbines include tilting pad b

Lube oil number cod is needed to identify the type of lubricant used in machinery.

• Lube oil number cod helps in identifying the viscosity of the lubricant.

• It also helps in determining the type of base oil used in the lubricant.

• Different machinery requires different types of lubricants with specific viscosity and base oil.

• Lube oil number cod helps in ensuring the correct lubricant is used for the machinery.

• For example, a...read more

TDC stands for Top Dead Center and BDC stands for Bottom Dead Center.

• TDC is the point where the piston is at its highest position in the cylinder.

• BDC is the point where the piston is at its lowest position in the cylinder.

• These terms are commonly used in internal combustion engines.

• The position of the piston at TDC and BDC is important for engine timing and performance.

• TDC and BDC are also used in reference to the posi...read more

1 bar is equal to 14.5038 PSI.

• 1 bar is a unit of pressure measurement in the metric system.

• PSI stands for pounds per square inch and is a unit of pressure measurement in the imperial system.

• 1 bar is equal to 100,000 Pascals (Pa) or 14.5038 PSI.

• This conversion is important in industries such as automotive and aerospace engineering.

An LPG plant is a facility that processes and stores liquefied petroleum gas. It requires various electrical and electronic equipment for its operations.

• LPG plant is a facility that processes and stores liquefied petroleum gas

• Electrical equipment in an LPG plant includes transformers, switchgear, motors, and control panels

• Electronic equipment in an LPG plant includes sensors, transmitters, and PLCs

• Examples of electrica...read more