57 8-16.    What PS form is used to file a claim for an Express Mail article? 1. PS Form 5690 2. PS Form 2855 3. PS Form 673 4.   PS Form 565 8-17. An application for refund of postage and fees  collected for retail must be initiated by using  what PS Form? 1.   PS Form 3977 2.   PS Form 3887 3.   PS Form 3577 4.   PS Form 3533 8-18. Customer may submit PS Form 6401 at any time for a money order inquiry. 1.   True 2.   False 8-19.    The primary purpose of mail directory service is to expedite early disposition of mail that is undeliverable as addressed. 1. True 2.   False 8-20.    Which of the following Navy commands must maintain a directory file? 1. One that does not have a military post office 2. One that receives mail through a United States civil post office 3. One that operates a military post office 4. All of the above 8-21.    At commands that have a military post office, who would normally maintain the mail directory? 1. Military postal clerks at that MPO 2. Command mail orderlies of each   department 3. Postal officer 4.   Administrative officer 8-22.    Under what agreement does DOD agree to provide directory service for undeliverable- as-addressed military mail and endorse each piece to show a forwarding address or reason for nondelivery? 1. Postal agreement between USPS and Department of Defense 2. Postal agreement between USPS and Department of the Navy 3. Festal agreement between USPS and Department of the Army 4. Postal agreement between USPS and Department of the Air Force 8-23.    What OPNAV form is used to help process directory mail? 1. OPNAV Form 5110/3 2. OPNAV Form 5110/5 3. OPNAV Form 5110/9 4. OPNAV Form 5110/10   8-24.    The permanent address of one of your patrons who transferred to a new duty station was not available at time of transfer. Pending the patron’s arrival at the new duty station, where should you forward the patron’s mail? 1. An intermediate activity 2. A nonmilitary address 3. The command directory service 4.   A receiving station