A 0.2 m wide strip 31 mm thick is fed through a rolling mill w/ rolls of diameter 0.2 m. The work thickness is to be reduced by 4 mm in one pass at a roll speed of 21 rev/min. The average flow stress of the work material, as it passes through the rolls is 172 MPa. Calculate the Power required to pull the strip through in kW (kilo Watt).

Which of the following is an easy way to remember the modified “x” tire rotation? a. nondrive wheels straight, cross the drive wheels b. drive wheels straight, cross the nondrive wheels c. drive wheels crossed, nondrive wheels straight d. drive wheels crossed, nondrive wheels crossed

Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false

Consider a large isothermal enclosure that is maintained at a uniform temperature of 2000 k. calculate the emissive power of the radiation that emerges from a small aperture on the enclosure surface. what is the wavelength ? , below which 10% of the emission is concentrated? what is the wavelength ? 2 above which 10% of the emission is concentrated? determine the wavelength at which maximum spectral emissive power occurs. what is the irradiation incident on a small object placed inside the enclosure?