If you are cutting external threads by hand and you start the die at an angle, the threads will __________.

Correct Answer: Option C — be cut crooked on the work

Starting a die at an angle causes the cutting edges to engage unevenly, resulting in threads that are cut crooked relative to the axis of the workpiece. This misalignment compromises the mechanical fit, potentially leading to cross-threading or failure of the connection under pressure in shipboard piping systems.