In a robot, which component is primarily responsible for grasping or picking up items?

• A. Actuator
• B. Sensor
• C. Manipulator
• D. Chassis

Answer: (C)

Grasping items is a manipulation task, which is handled by the part of the robot that reaches out, positions, and interacts with objects. The manipulator is that assembly—typically a robotic arm with joints and an end effector like a gripper—that performs the grasping action. The end effector (gripper) is what actually closes around the item, but it’s mounted on the manipulator, which provides the coordinated motion and positioning needed to reach the object and apply force. Actuators power the joints inside the manipulator, sensors provide feedback and sensing, and the chassis is just the base frame. So the component primarily responsible for grasping is the manipulator.