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A 1/4 pipe bend corresponds to 90 degrees, which means it changes the direction of the pipe flow by a quarter turn. This is a standard term used in plumbing and piping design where the dimensions and angles are crucial for ensuring proper flow and drainage.

Understanding the significance of pipe bends is vital for a general contractor as it affects the efficiency and functionality of the piping system within a structure. In this case, recognizing that a quarter bend specifically signifies a 90-degree change helps professionals select the right fittings and design the layout effectively.

The other angles refer to larger bends: a 45-degree bend changes direction less dramatically, while 180 degrees represents a complete turnaround, and 270 degrees indicates a turn greater than a half-circle, which is not relevant when defining a 1/4 pipe bend. Thus, the accurate identification of the angle is essential in practical applications.