With an increase in unmanned machining hours, what happens to the efficiency of ECM?

Related MCQs

• State whether the following statement is true or false regarding the limitations of ECM. “In ECM, cleaning and oiling of work piece need not be done after machining.”
• State whether the following statement is true or false about electrolyte in ECM. “Machinability in ECM is enhanced, when electrolyte is heated.”
• What happens when the current density is low in ECM?
• In advanced machining processes, what is the full form of ECM?
• For large size machining, which type of facilities are used in ECM?
• During ECM drilling, decrease in feed rates lead to which type of machining gaps?
• Tool insulation that                      the side machining action is needed in the process of ECM.
• ECM is usually characterized as low accuracy machining, for which of the following reason?
• State whether the following statement is true or false regarding the limitations of ECM. “In electrochemical machining, duplicating the tool is easier.”
• Current efficiency depends on which of the following in ECM?