Test Professional Interview Questions and Answers

Yes, application software for power quality and energy metering monitoring works effectively.

• Application software can effectively monitor power quality and energy metering data

• These software can provide real-time data analysis and reporting

• Examples include Power Monitoring Software, Energy Management Software, and Smart Metering Software

PQ harmonics refer to the quality of power in electrical grids, including voltage and current harmonics.

• PQ harmonics are regulated by grid codes to ensure the quality of power supplied to consumers.

• Grid codes specify limits on harmonic distortion levels to prevent negative impacts on equipment and systems.

• Examples of grid codes include IEEE 519 and EN 50160.

• Harmonics can cause issues such as overheating in transformers and interference with communication systems.

IEC/IEEE standards provide guidelines for addressing power quality issues in testing.

• IEC 61000 series provides standards for electromagnetic compatibility (EMC) testing

• IEEE 1159 standard focuses on monitoring and analyzing power quality

• IEC 61000-4-30 standardizes measurement methods for power quality parameters

• Compliance with these standards ensures reliable and accurate testing results

Debugging in testing involves identifying and fixing issues in software to ensure its functionality.

• Identify the root cause of the issue by reproducing the bug

• Use debugging tools like breakpoints, logging, and tracing to track the issue

• Collaborate with developers to resolve the bug efficiently

• Perform regression testing to ensure the fix did not introduce new issues

Reverse array of strings using recursion and loop

• To reverse using recursion, pass the array without the first element to the recursive function until the array is empty

• To reverse using loop, iterate through the array from the end to the beginning and store each element in a new array