Praxair Interview Questions and Answers

To check mechanical seal, perform visual inspection, pressure test, and leakage test.

• Perform visual inspection to check for any visible damage or wear on the seal

• Conduct a pressure test to ensure the seal can withstand the required pressure

• Perform a leakage test to check if the seal is properly sealing the joint

• Check the temperature of the seal to ensure it is within the specified range

• Check the lubrication of the seal

Runout of a shaft can be calculated by measuring the amount of deviation from a true circular path.

• Use a dial indicator to measure the deviation of the shaft from a true circular path

• Rotate the shaft and take readings at various points to get an accurate measurement

• Calculate the average deviation to determine the runout of the shaft

• Runout can be caused by various factors such as misalignment, bent shaft, or worn bearin

Utility load is calculated by determining the total power consumption of all devices connected to the utility grid.

• Determine the power consumption of each device connected to the grid

• Add up the total power consumption of all devices

• Consider the time of day and season to account for varying energy demands

• Factor in any renewable energy sources or backup generators

• Use software tools to automate the calculation process