power available at sea-level PA; 0 = 140 kW wingspan b = 11 m wing area S = 16 m2 zero-lift drag coefficient CDO = 0:025 maximum lift coefficient CLmax = 3 Oswald efficiency factor = 0.75 aircraft weight = 1300kg air density at sea-level = 1:22 kg/m3 air density at 5,000m altitude= 0:74 kg/m3 gravity acceleration: g = 10 m/s2 Assuming small glide angles, calculate the minimum sink velocities and the minimum glide angles of the aeroplane in gliding flight at sea-level and at 5,000m altitude, respectively.

1. Define manufacturing processes, design engineer, industrial engineer and materials engineer? 2. Name and explain a protess to make cylinder shaft? 3. Discus at least three factors which will effect tool life? 4. Define finishing and roughing process? 5. Explain the negative effect of heat generated from machining process? 6. One limitation of sand casting is bad surface finish. Yes or No? Why? 7. What is permeability in casting process? 8. What are the major defects in casting process? 9. Which type of casting process should be use for high melting point casting, such as cast iron and why? 10. Casting problem A certain mold has a sprue whose length is 20 cm and the cross-sectional area at the base of the sprue is 2.5 cm?. The sprue feeds a horizontal runner leading into a mold cavity whose volume is 1560 cm³. Determine: (a) velocity of the molten metal at the base of the sprue, (b) volume rate of flow, and (c) time to fill the mold (in second). mfg m1 Spring 2020 999.pptx

Paula has worked for Brindle Corporation for 3 years.  During this time, she has worked as a machine operator/cell leader in various work cells.  Recently, the plant went to mandatory 12-hour shifts and plans to remain on this schedule for several months.   Paula’s present work cell is manufacturing 3-inch diameter exhaust tubes that are made from stainless steel.  These tubes get a hole punched in them, a flange welded on, and burrs ground off.  The pipe then gets placed into a gage to check that it was made correctly.  (The tubes weigh about six pounds.)   Paula has been performing the welding operation.  She leans into the machine and loads the part into a fixture then positions the flange.  Both pieces are clamped (using hand clamps) into position and the machine is cycled by depressing two palm buttons.   The gaging operation requires placing the finished part into the gage and clamping it (using hand clamps) into place. A pin is depressed to verify the position of the hole and a…

Don't need to show work, just need to know which ones correct to compare my answers. 9.10.