Hashtag InfoSystems Interview Questions and Answers

Process checks in line testing of a 6inch dia pigging line and associated calculations

• Pressure testing to ensure integrity of the line

• Flow testing to check for blockages or restrictions

• Calibration of pigging equipment for accurate results

• Calculations involve pressure drop, flow rate, and pigging efficiency

• Recording and analyzing data for future reference

IS codes are Indian Standards codes used for standardization of products, processes, and services.

• IS 456:2000 - Code of practice for plain and reinforced concrete

• IS 2062:2011 - Specification of steel for general structural purposes

• IS 800:2007 - Code of practice for general construction in steel

• IS 1343:2012 - Code of practice for prestressed concrete

• IS 1200:Part 1:1992 - Method of measurement of building and civil engineering works

• IS 2502:1963 - Code of practice for bending an...read more

A basic PFD of a WTP plant including feed quality and sensors.

• Include feed quality parameters such as turbidity, pH, temperature, and flow rate

• Include sensors for monitoring parameters like chlorine levels, pressure, and conductivity

• Show the flow of water through various treatment processes like coagulation, flocculation, sedimentation, filtration, and disinfection

Load cases in STAAD are used for qualification purposes to ensure structural safety.

• Load cases are combinations of loads that a structure may experience during its lifetime.

• Qualification load cases are used to ensure that the structure can withstand the maximum expected loads.

• Examples of load cases include dead load, live load, wind load, seismic load, and temperature load.

• Each load case is analyzed separately to determine the maximum stresses and deflections in the structure...read more

Surging is a phenomenon in which a system experiences rapid and temporary increases in pressure or flow rate.

• Surging can occur in various systems such as pipelines, compressors, pumps, and turbines.

• It is often caused by sudden changes in demand, equipment malfunctions, or improper system design.

• Surging can lead to damage to equipment, reduced efficiency, and safety hazards.

• Examples include water hammer in pipelines and compressor surge in gas turbines.

Froude number is a dimensionless number used to quantify the influence of gravity on fluid flow.

• Froude number is defined as the ratio of inertia force to gravitational force in a fluid flow.

• It is used to determine the type of flow (subcritical, critical, or supercritical) in open channel flow.

• Froude number is calculated as Fr = V / sqrt(g * d), where V is velocity, g is acceleration due to gravity, and d is depth of flow.

• For subcritical flow, Fr < 1; for critical flow, Fr = 1...read more

Weeping is the process of fluid leaking out of a solid material, often due to damage or excess moisture.

• Weeping can occur in materials such as wood, concrete, and metal.

• It is often a sign of structural damage or deterioration.

• Examples include water weeping from a crack in a wall or oil weeping from a car engine.

• Weeping can also refer to the shedding of tears in humans and animals.