52 7-36. Who usually supplies collection boxes for ships? 1.     MPSA 2.     USPS 3.     JMPA 4.     COMNAVSEASYSCOM 7-37. When requisitioning three position tumbler locks you should requisition them in what quantities? 1. 6 or 10 2. 6 or 12 3. 8 or 10 4. 8 or 12 7-38. Mail collections should be displayed on all collection boxes using what USPS item? 1. D1175 2. D1275 3. D1300 4. D1500 7-39. Mail with insufficient postage should be returned to sender. 1. True 2.     False 7-40. Mail without postage should be returned to sender. 1. True 2.     False 7-41. When is free mail authorized? 1.       When station over seas 2.       When serving in a combat area 3.       When mailing to a ship station in Guam 4.       When authorized  by the commanding officer   7-42. What type of mail may be sent free? 1.     Registered mail 2.     Certified mail 3.     Postcards   4.     Insured mail 7-43. When can IDS mail be sent to the United States? 1.       When the addressee has moved back to CONUS 2.       While station in GUAM 3.       When sent to dead mail branch SFO 4. Never 7-44. How many days a week should overseas and aboard deployed units should schedule pickups from collections boxes? 1.     4 days 2.     5 days 3.     6 days 4.     7 days 7-45. What is the maximum limit on philatelic covers per collector? 1. 3 2. 4 3. 5 4.     10 7-46. A full sized managed mail tray hold an average of how many letters? 1. 300 2. 600 3. 900 4. 1200