A2.5" diameter steel bar is 8-ft long. the diameter is reduced to 1" in the 2-foot central portion of the bar. when an axial load is applied to the end of the bar, the axial strain in the central portion of the bar is 760 μin./in., and the total elongation of the bar is 0.03132 in determine: (1) the elongation of the central portion of the bar (2) the axial strain in the end portions of the bar. note: 1μ=1 x 10^-6

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?

The higher the astm grain size number, the finer the gran is. a)-true b)-false

Inspection for bearing condition will include: (clo4) a)-color b)-smell c)-size d)-none of the above