Final answer:
In CNC machine operations, M6 T8 generally loads tool number 8 into the spindle. The specific behavior can depend on the machine's control system and context of prior commands.
Step-by-step explanation:
The command M6 T8 is commonly used on CNC (Computer Numerical Control) machines, where M6 denotes a tool change, and T8 specifies the tool number to be used. In most CNC machine control systems, running the M6 T8 command in MDI (Manual Data Input) mode typically performs the action of loading tool number 8 into the spindle. The actual behavior, however, could depend on the context of previous commands and the specific setup of the CNC machine control system.
The Running M6 T8 command in MDI stands for running the command that loads tool #8 in ATC, which is the Automatic Tool Changer. The Automatic Tool Changer is a system that allows the machine to automatically change tools during an operation. This command instructs the machine to load tool #8 into the Automatic Tool Changer. So, the correct answer would be option a) loads tool #8 in ATC.