SCARA stands for which of the following acronyms?

• A. Selective Calibration Assembly Robot Arm
• B. Simple Compliance Assembly Robot Arm
• C. Selective Compliance Assembly Robot Arm
• D. Selective Compliance Automatic Robot Arm

Answer: (C)

The main idea here is how the name reflects what the robot does. SCARA stands for Selective Compliance Assembly Robot Arm, and that wording is intentional. “Selective compliance” means the end effector is allowed to give a little (be compliant) in specific directions to help with parts mating or inserting parts that might be slightly misaligned, while remaining stiff in other directions to keep precision where it matters. That combination is ideal for fast, reliable assembly tasks in the plane.

Other phrasings change the meaning: using calibration implies adjusting measurements rather than enabling controlled flexibility; “simple” removes the idea of targeted flexibility; and “automatic” instead of “robot arm” shifts the scope away from the typical robotic arm used in assembly.