ASSIGNMENT 4 Textbook Assignment: “Messages” (continued) and “Allied Communications Procedures,” chapters 3 and 4, pages 3-10 through 4-2. 4-1. What should be the precedence sign of a service message if the message to which it refers has a priority precedence? 1. Routine 2. Priority 3. Immediate 4. Flash 4-2. What components of an abbreviated plaindress message may be partially or completely eliminated? 1. The heading and ending 2. The address and preamble 3. The prefix and ending 4. The preamble and prefix 4-3. What type of information is contained in the heading of a codress message? 1. Information to enable personnel to handle it properly 2. Information concerning disposal of the message 3. Information describing the contents of the text 4. Information describing the contents of the ending procedure 4-4. What is the definition of a combination of characters or pronounceable words designed for use in message headings to identify a command, authority, unit, or communication facility? 1. Call sign 2. Station and address designator 3. Address indicating group 4. Special operating group 4-5. What is the definition of letters, letter-number combinations, or one or more pronounceable words used for establishing communication? 1. Special operating groups 2. Address indicating groups 3. Call signs 4. Plain language stations and address designators 4-6. What is the main use of visual call signs? 1. To amplify the meaning of a signal 2. To expedite communication 3. To reduce message transmission time 4. To establish and maintain communication 4-7. Personnel from what service are probably operating a station with the call sign WRAW? 1. Navy 2. Merchant Marine 3. Marine Corps 4. Coast Guard 4-8. What international call sign block is reserved for use by the Coast Guard? 1. A 2. C 3. N 4.  W 4-9. What international call sign block is reserved for use by the Marine Corps? 1. A 2.  M 3.  N 4.  W 22