Wilkins Backflow Preventer Repair Kit, For Use With Wilkins No. 34-375, Lead. $29.15
Some schools may also require you to take one or more GRE Subject Tests. The purpose of each GRE examination, of course, is to help graduate schools decide if you've got the right stuff for their program. If you're looking for help with the exam, check out Peterson's full-length GRE practice test.
Graduate Record Examinations. The Graduate Record Examinations (GRE) is a standardized test that is an admissions requirement for most Graduate Schools in the United States. The GRE is owned and administered by Educational Testing Service (ETS) who created it in 1949. According to ETS, the GRE aims to measure verbal reasoning, quantitative reasoning, analytical writing, and critical thinking skills that have been acquired over a long period of learning.