The allowance provided to a pattern for easy withdrawal from a sand mold is

The most suitable electrode material used for joining low alloy steels using Gas Metal Arc Welding (GMAW) process is

The preparatory functions in Computer Numerical Controlled (CNC) machine programming are denoted by the alphabet

A cutting tool provides a tool life of 60 minutes while machining with the cutting speed of 60 m/min. When the same tool is used for machining the same material, it provides a tool life of 10 minutes for a cutting speed of 100 m/min. If the cutting speed is changed to 80 m/min for the same tool and work material combination, the tool life computed using Taylor’s tool life model is _______ minutes (rounded off to 2 decimal places).