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Unformatted text preview: Name (PRINT) August 30, 2012 Mechanical Engineering Technology 100
MET4141: Machine Design I (section 002) QUIZ 1 Note: Closed book. No other material is allowed except a calculator. Time allowed 30 minutes.
Each question carries equal weight. Must show necessary calculations to get full credit. Always
write the units in your answers. Draw a rectangular box around each answer. 1. The normal and shear stresses ox = 10 ksi, oy = 40 ksi and T = -10 ksi are acting on a stress
element. Draw the corresponding Mohr’s Circle. Determine the principal normal and shear
stresses, and the angles at which they occur relative to the X axis. Identify all these on the
diagram. Must show all axes and must label it completely.  Page I You may work on the back side, if needed -) Name (PRINT) August 30, 2012 2. The beam shown is loaded as indicated. (a) Find the reaction forces RA and RB. (b) Draw the V
and M diagrams just below this diagram. P: 2000 N, w0=2000 N/m. Distances a = 0.2 m, 0.1 m, c = 0.4 m, and d = 0.2 m. Show any calculations necessary. ~  $.23 . 3:“ W.,,M..,m.w..m.....s;w. .. Page 2 You may work on the back side, if needed —> Name (PRINT) August 30, 2012 3. The L-bracket is loaded as shown. A is a pin and B is a roller with point contact.
a) Find the reaction forces A.
(show any and all free body diagram, equilibrium equation set up and all calculations with
units.) [20} Page 3 You may work on the back side, if needed -) ...
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