Consider the data for the NACA 0012 airfoil at an angle of attack of 8 degrees. First find the low speed section lift coefficient (Appendix B), and estimate the critical Mach number using the NACA Handbook (page number 115 of the handbook, page 117 of the pdf).

G Problem 6. Using the information from Problem 5, determine what the value of the low speed coefficient of pressure is for the NACA 0012 for an 8 degree angle of attack. Do your results correspond to the notion of thick, medium and thin airfoils? Explain this result.

Asingle-geared blanking press has a stroke of 200 mm and a rated capacity of 320 kn. a cam driven ram is assumed to be capable of delivering the full press load at constant force during the last 15 percent of a constant-velocity stroke. the camshaft has an average speed of 90 rev/min and is geared to the flywheel shaft at a 6: 1 ratio. the total work done is to include an allowance of 16 percent for friction a) estimate the maximum energy fluctuation b) find the rim weight for an effective diameter of 1.2 m and a coefficient of speed fluctuation of 0.10

Draw the engineering stress-strain curve for (a) bcc; (b) fcc metals and mark important points.

Select any two (2) areas of applications of chain-drive. (clo4) a)-permanent lubrication necessary b)-hydraulic forklift truck operation c)-rigging and heavy moving materials d)-relatively high maintenance costs e)-costlier than belt drives