As an electrical engineer, what are the fields of work in this specialization?

Predictive maintenance is to be applied to an industrial conveying system.a) Discuss and illustrate the difference between reactive, preventative, and predictive maintenance.b)  Describe several of the techniques that could be used to develop a predictive maintenance system for the conveyor system. Consider some  of the  sensing techniques  that might be used and what parameters might be measured to detect component degradation.c)  If the predictive maintenance system described in b) detects that the conveyor system is vibrating abnormally, discuss what condition this could indicate and what maintenance might be required.

AS U4   Read the following scenario. Superconductor technology is becoming a widespread and indispensible component of the machines we use today. Superconductors can be found in everything from transportation to electronic signal transmission. Due to our increasing reliance on technology, the demand for superconductors has skyrocketed. As a result, production has also increased exponentially, which has greatly reduced the cost per unit.   Use the scenario to answer the following question   Explain why the price of superconductors has diminished in the short run.

I have an assignment of topic: construction of DC Machine I need to write theory discussion with some figures