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EGEE 101 PSU - Q02 Exam 2025 Questions and Answers In the last 5 years there has been a rapid change in the contribution of energy sources to the US energy mix. The fuel that has lost the most market share is [answer] and the bulk of the replacement was by [answer]. - ....ANSWER ...-coal; natural gas There are a couple of "new" coal-fired electricity generation technologies that are much cleaner and more CO2 sequestration ready than current plants. One is oxy-fuel combustion and the other is - ....ANSWER ...-gasification Why did we use large amounts of fossil fuel and nuclear derived electricity when renewable energy was available? - ....ANSWER ...-it was much cheaper Place these in the correct order [steam power plant cycle diagram] - ....ANSWER ...-highest efficiency- ultra supercritical steam cycle high efficiency- supercritical steam cycle lower efficiency- steam cycle Why are power plants often on river banks or the edge of lakes? - ....ANSWER ...- for a large supply of cooling water is needed …FOR STUDENTS ONLY…©️2025 ALL RIGHTS RESERVED… 1