Final answer:
The number of compressions for a 5/16" zinc plated copper sleeve could typically be two, but this can vary based on manufacturer specifications. Always refer to the specific guidelines for the materials and tools being used.
Step-by-step explanation:
The number of compressions in a properly swaged 5/16" zinc plated copper sleeve is typically specified by the manufacturer of the sleeve or the swaging tool. However, a common standard for many swaging operations is to apply at least two compressions to ensure a secure and reliable connection. It's essential to reference the particular specifications related to the equipment and materials you're working with for the most accurate information.