A six axis robot has 6 degrees of freedom.

• A. False
• B. True
• C. It has 5 degrees of freedom
• D. It has 7 degrees of freedom

Answer: (B)

Degrees of freedom describe how many independent motions the robot’s end effector can perform. A six-axis robot typically uses six rotary joints, which gives three ways to move the end effector’s position (x, y, z) and three independent rotations (pitch, yaw, roll). With these six independent motions, you can reach any point in 3D space and orient the end effector in any direction within the robot’s reach, which is what six DOF means. If you had only five, orientation would be limited; with seven, there would be redundancy rather than a new essential capability. So this statement is correct because six axes provide six independent motions of the end effector.