The most common shapes are called open-ended spanner and ring spanner. The term wrench is generally used for tools that turn non-fastening devices (e.g. tap wrench and pipe wrench), or may be used for a monkey wrench - an adjustable spanner. In North American English, wrench is the standard term.
The definition of first mate is the person on a boat that is second in charge after the captain. An example of first mate is the person who gives orders while the captain is busy. first mate. first mate.
Licensed positions:Â· second officer Â· third officer Unlicensed positions:Â· able seaman Â· ordinary seaman Engine Engine department members are responsible for themaintenance and repair of the shipâs machinery, includ-ing material-handling equipment, elevators, andwinches.