School: Minnesota
Required prelims: Micro/Macro Theory
When taken: Early June after first year.
Retake: August before second year, June after second year, August after second year... can apply to take again in June after third year.
Score required to pass: Three grades- PhD pass, Masters pass, Fail. Never met somebody who got Fail, so Masters pass is the true fail grade. No idea how they score them.
Link to old prelims:
The Prelim Archive
Field exams: Two required. June after second year, August after second year, June third year... etc