In an orthogonal cutting operation, the rake angle = -8°, chip thickness before the cut = 0.22 mm and width of cut = 3.2 mm. the cutting force is 1750n and the thrust force is 1200n. the chip ratio = 0.42. determine: a-the chip thickness after the cut (b)-shear angle (c)-coefficient of friction (d)-friction angle (e)-shear strain.

The y form of iron is known as: a) ferrite b) cementite c) perlite d) austenite

An ideal otto cycle with air as the working fluid has a compression ratio of 8. the minimum and maximum temperatures in the cycle are 300 k and 1340 k. use constant specific heats at room temperature to determine (a) the amount of heat transferred to the air during the heat- addition kj/kg, (b) the thermal efficiency, and (c) the thermal efficiency of a carnot cycle ope limits. process, in rating between the same temperature

Steam enters a converging nozzle at 3.0 mpa and 500°c with a at 1.8 mpa. for a nozzle exit area of 32 cm2, determine the exit velocity, mass flow rate, and exit mach number if the nozzle: negligible velocity, and it exits (a) is isentropic (b) has an efficiency of 94 percent