In a computer numerical control (CNC) machine, if the tool has to move downward and then rotate counter-clockwise around the vertical axis, along which of the following axes would it move?
A. X-axis, B axis
B Z-axis, Caxis
c. Z-axis, A axis
D. y-axis, A axis

Water at the rate of 1 kg/s is forced through a tube with a 2.5 cm inner diameter. the inlet water temperature is 15°c, and the outlet water temperature is 50°c. the tube wall temperature is 14°c higher than the local water temperature all along the length of the tube. what is the length of the tube?

Aturning operation is performed with following conditions: rake angle of 12°, a feed of 0.35 mm/rev, and a depth of cut of 1.1 mm. the work piece is aluminum alloy 6061 with t6 heat treatment (a16061-t6). the resultant chip thickness was measured to be 1.0 mm. estimate the cutting force, fc. use shear stress of 207 mpa and coefficient of friction on the tool face of 0.6.

Inadequate stores control is not an obstacle to effective work order system. (clo4) a)-true b)-false