Final answer:
Both Technician A and B are correct. Tap handles have squared jaws to fit the squared end of taps, and T-shaped tap handles provide added leverage and maneuverability in tight spaces.
Step-by-step explanation:
Technician A states that a tap handle has a right-angled jaw that matches the squared end that all taps have. This is correct, as taps for threading have a squared end to which the tap handle is fitted. The jaws or clamps of the tap handle are designed to match this square shape, ensuring a secure grip for carrying out the threading process.
Technician B states that to cut a thread in an awkward space, a T-shaped tap handle is very convenient. This is also correct. A T-shaped tap handle allows for easier maneuverability and leverage in tight or confined spaces, which can make the process of cutting a thread much easier compared to using a straight tap handle.
Comparing the technician statements to the given references, we can analogize the concept of the tap handle's function to the idea of a square peg fitting through the square hole as in a children's toy. Similarly, the use of additional leverage when using a pipe on a wrench handle to remove a tight bolt can be likened to the increased leverage provided by a T-shaped tap handle in a difficult-to-reach area.