List of top Manufacturing Processes II Questions on Basic concepts of CNC asked in GATE PI

The worktable of an open loop positioning system is driven by a lead screw with a pitch of 4 mm. The lead screw is connected to the shaft of a stepper motor. A gear of 80 teeth mounted on the stepper motor shaft meshes with a gear of 20 teeth mounted on the lead screw. The step angle of the stepper motor is $9^\circ$. The number of pulses required to move the table by 200 mm is \(\underline{\hspace{2cm}}\). [in integer]
Match the codes used in CNC part programming with their functions.\[\begin{array}{c c | c c} \hline \textbf{Code} & & \textbf{Function} & \\ \text{P} & \text{G91} & \text{1} & \text{End of program} \\ \hline \text{Q} & \text{M02} & \text{2} & \text{Programming in incremental coordinates} \\ \hline \text{R} & \text{G32} & \text{3} & \text{Spindle stop} \\ \hline \text{S} & \text{M05} & \text{4} & \text{Thread cutting in turning} \\ \hline \end{array}\]