PSA AVTEC Powertrain Interview Questions and Answers

The procedure for fit up inspection includes classification, cleaning, alignment, root gap, root face, bevel angle, and mismatch or overlap.

• Classify the base metal

• Clean the surface

• Align the parts to be joined

• Check the root gap and root face

• Measure the bevel angle

• Check for any mismatch or overlap

• Ensure all specifications are met

Methods for managing floods include structural measures, non-structural measures, and preparedness planning.

• Structural measures include building dams, levees, and flood walls to control water flow.

• Non-structural measures involve land-use planning, zoning regulations, and wetland preservation to reduce flood risk.

• Preparedness planning includes early warning systems, evacuation plans, and community education on flood safety.

• Examples: constructing retention ponds to store excess...read more

The hydrotest pressure is 1.5 times the design pressure.

• Hydrotest pressure is the pressure applied to a vessel or pipeline to check for leaks or defects.

• It is usually done before commissioning the system.

• For example, if the design pressure is 100 psi, the hydrotest pressure would be 150 psi.

The hydraulic gradient line is a line representing the total head of water at various points along a flow path in a hydraulic system.

• It is a graphical representation of the total head of water in a hydraulic system.

• It shows the energy level of water at different points along a flow path.

• The slope of the hydraulic gradient line indicates the direction and rate of flow of water.

• It is used in analyzing flow patterns and designing hydraulic systems.

• Example: In a pump system, the ...read more

Hydro power test of DI pipes is a method to check the strength and integrity of ductile iron pipes under pressure.

• Hydro power test involves filling the DI pipes with water and pressurizing them to a specified level.

• The test is conducted to ensure that the pipes can withstand the pressure they will be subjected to in actual use.

• Leaks or deformations during the test indicate weaknesses in the pipes.

• The test helps in identifying any defects in the manufacturing process or transp...read more

Prestressed concrete is a type of concrete that has been compressed prior to being subjected to loads.

• Prestressed concrete is created by introducing internal stresses in the concrete before it is subjected to external loads.

• This compression helps to counteract the tensile stresses that the concrete will experience during use.

• Prestressed concrete is commonly used in bridges, parking structures, and high-rise buildings.

• Examples of prestressed concrete elements include beams, sl...read more