if the material that should be used is steel with thickness 8 cm and the velocity of cutting should equal:
Vcutting = 23.34 cm/s, phase = 8/ 9
Standard velocity = (1.7 + 2.3)
According to that determine which switch should select to match required speed of cutting steel.
The first swich selector (1) increas the velocity of the machine by:
Vcutting = ( standard velocity )2
The second swich selector (2) increas the velocity of the machine by:
Vcutting = ( standard velocity )3