Stephen,
The short answer is 'No'.
The long answer is that PMI has a worldwide "army" of volunteers who develop the PMP exam questions. So it is entirely possible that you may come across questions that use feet, kilometers, US dollars, Euros, celsius, farenheit, or any other possible units. But... the unit is never going to be at the center of the question. Instead, it will be the project management methodology and approaches that will be central. PMI will not require you to convert from unit X to unit Y. Instead, PMI will require you to understand what an experienced project manager would do in a given situation, no matter if the pipeline is 1000 miles or 1000 kilometers in length.