WASHINGTON — President-elect Donald J. Trump’s transition team has circulated an unusual 74-point questionnaire at the Department of Energy that requests the names of all employees and contractors who have attended climate change policy conferences, as well as emails and documents associated with the conferences.

In question after question, the document peppers Energy Department managers with pointed queries about climate science research, clean energy programs and the employees who work for those programs. More broadly, the questionnaire hints at a significant shift of emphasis at the agency toward nuclear power, and a push to commercialize the research of the Energy Department’s laboratories, long considered the crown jewels of federal science.

Energy Department employees, who shared the questionnaire with The New York Times and spoke on the condition of anonymity because they were not authorized to discuss the matter publicly, described the questionnaire as worrying. Mr. Trump has just tapped Scott Pruitt, the attorney general of Oklahoma and a climate change denialist, to head the Environmental Protection Agency, and the president-elect has made it clear he intends to roll back eight years of regulatory efforts by President Obama that aimed to control planet-warming emissions.

The questionnaire “suggests the Trump administration plans a witch hunt for civil servants who’ve simply been doing their jobs,” Robert Weissman, president of the watchdog group Public Citizen, said in a statement. “Democrats and Republicans alike should unite to condemn any action that intimidates, threatens or retaliates against civil servants for lawfully doing their jobs.”