The oscilloscope is NOT a tool that would be considered appropriate equipment for on-site visits. The oscilloscope is an electronic test instrument used to observe observation constantly varying signals. This instruments is used in laboratories, and not on-site visits.
All other instruments are moveable and can be used on-site.
A computer uses unallocated space also know as free space to keep a file that has been deleted in its disk until a new file takes it spot and overwrites it.
The correct answer is A. The thrust bearing
It is used to help limit the front-to-back movement of the crankshaft.
