Problem: As part of the vibration qualification for air conditioning unit of trailer, a drop test has been conducted to simulate the rail service, lifting, coupling, and humping that represent the expected shock events for unit. A failure that occurred during the test was the rivets used to assemble the side door hinges to the frame had pulled out. [5 point] Explain the root cause of the Rivets failure which were used on the grip range not being sized properly for the " thick frame members. [CLO 1] [15 point] Select the appropriate size of rivets for the given data and figure out the force required to pull the rivets out of holes. This problem has used 2 counter sunk head aluminum rivets. [CLO 3] Attributes: 1) Depth of Knowledge required 2) Depth of analysis required 3) Extent of stakeholder involvement and level of conflicting requirement