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first things first: MATH! I am still coming to terms with the fact that metric is not being used in this course and I have combed through our notes and I feel like my professor just assumed that I knew how to solve this.....

I feel like it's an easier problem than I am making it out to be but I just can't seem to find a set of equations putting all this together.

1.) How many steps of Bank D rod motion will be required to change power level from 5% to 18%? Assume that the full power Delta T from primary to secondary is 50 degrees F. Assume the moderator temperature coefficient is -5 pcm/degree F. Assume the Bank D rod worth is 5 pcm/step. Neglect fuel temperature changes.

Also, I have been asked this question:

The Beaver Valley Station is at 100% power. Discuss what would happen to the plant on a total loss of station air.

I have found information regarding what valves would close at different pressure levels in the event of a problem with the air system but, I feel as though there is a bigger picture answer mixed in with those supporting details that I have not hit the button on yet.

ANY HELP IS GREATLY APPRECIATED!!