Question

What is the basis for analyzing an energy transfer diagram? The mechanical energy input and output must be equal.  Heat must always be the largest output. The sum of all outputs must equal the input.  Electrical energy is an input but not an output.

Answer 1

The sum of all outputs must equal the input.

Step-by-step explanation:

Answer 2

An Energy Transfer Diagram is also known as Sankey diagram and this shows the input energy taken in and the transformation of the output energy in another form. Therefore the basis for analyzing an energy transfer diagram would be the sum of all outputs must equal the input. Therefore, it is the third option. Hope this answer helps.