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
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
