This document contains frequently asked electrical engineering interview questions and their answers. It discusses system definitions, types of control systems including open loop and closed loop systems, latching current which is the minimum current needed to keep a thyristor switched on, reverse power relays which prevent power flow from the grid to a generator, and knee point voltage which is the saturation point of a current transformer. The document is divided into multiple sections with questions and detailed answers to help electrical engineering graduates prepare for interviews.