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]. - Correct 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 -
Correct Answer✔️✔️-gasification
Why did we use large amounts of fossil fuel and nuclear derived electricity when renewable energy
was available? - Correct Answer✔️✔️-it was much cheaper
Place these in the correct order
[steam power plant cycle diagram] - Correct Answer✔️✔️-highest efficiency- ultra supercritical
steam cycle
high efficiency- supercritical steam cycle
lower efficiency- steam cycle
FOR STUDY PURPOSES ONLY COPYRIGHT © 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]. - Correct 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 -
Correct Answer✔️✔️-gasification
Why did we use large amounts of fossil fuel and nuclear derived electricity when renewable energy
was available? - Correct Answer✔️✔️-it was much cheaper
Place these in the correct order
[steam power plant cycle diagram] - Correct Answer✔️✔️-highest efficiency- ultra supercritical
steam cycle
high efficiency- supercritical steam cycle
lower efficiency- steam cycle
FOR STUDY PURPOSES ONLY COPYRIGHT © 2025 ALL RIGHTS RESERVED 1