Final answer:
The most common 1-RM tests in weightlifting are the Deadlift, Bench press, and Power Clean.
Step-by-step explanation:
The most common 1-RM tests in the context of weightlifting are the Deadlift, Bench press, and Power Clean. These exercises are often used to measure an individual's maximal strength in the lower body (Deadlift), upper body (Bench press), and full body (Power Clean). All of these exercises require proper technique and form to ensure accurate and safe testing.