1. What is the need for a load flow study?
2. What are two advantages of digital data compared to analog data?
3. Design a circuit to maintain the elevation of a satellite tracking dish antenna between 19 and 20 degrees. The antenna's hydraulic steering system uses a hydraulic ram to adjust elevation, with oil pumped in to raise it. Due to slow pressure leaks, oil needs periodic pumping to maintain elevation. The system provides two output signals: ABOVE19 (1 when elevation > 19 degrees) and ABOVE20 (1 when elevation > 20 degrees). Your circuit should have an output signal PUMP (1 when the pump should increase hydraulic pressure to raise the dish).
4. What do you know about transformers?
5. What do you know about actuators?