Consider a stainless steel material with a brinnel hardness of 270, that is turned on a lathe. the undeformed chip thickness is 0.25 mm, and the cutting speed is 0.6 m/s. the chip is continuous and a 1- m-long section weighs 5.7 g. the chip width is the same as the workpiece width and equals 1.5 mm. calculate the cutting ratio. assume the density of the stainless steel is 8027 kg/m^3.

Apipe with an outside diameter of 15 cm is exposed to an ambient air and surrounding temperature of -20°c. the pipe has an outer surface temperature of 65°c and an emissivity of 0.85. if the rate of heat loss from the pipe surface is 0.95 kw per meter of length, the external convective heat transfer coefficient (h) is: (a) 12.5 w/m"k (b) 18.6 w/mk (c) 23.7 w/mk (d) 27.9 w/mk (e) 33.5 w/mk

Manometers are good examples of measuring instruments, nowadays they are not as common as before. a)-capacitive probe gauges b)-gravitational gauges deformation ) gauges d)-digital gauges

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