© Institute for International Research, Inc All rights reserved. Module 3: Quiz Question Answer

2 international Force per Vial  Ram Pressure x Cylinder Area = Force  Force/(Vials on Shelf) = Force/Vial  Force/(Shelf Area) = Shelf Pressure  Vials begin to break at about 25 lbf (111 N)  Vials fail to stopper with less than 4 lbf (17.8 N)  For most vials a setting of 10 psig is acceptable.  Shelf Pressure = 10 psi (69 kPa)

3 international Question 1 of 3  Calculate the ram pressure range needed for a 120 sq ft lyo made up of 10 shelves, having a 4” dia ram and fully loaded with 5 cc vials. Shelves are 4’ across by 3’ deep and trays are 1’ x 2’. 360 vials fit into one tray. Ram pushes up from below or above – ignore gravity.

4 international Quiz Answer