9-35. You send a message by flashing light but you 9-41. You are in formation and you lose a man do NOT wish the ships in the convoy to answer. overboard; you should maneuver your ship to What prosign preceding the call should you use? pick up the individual. 1. BBBB 2. FFFF 3. HHHH 4. NNNN 9-36. Which of the following situations warrants the use of the executive method of signaling? 1. A report to all ships that the convoy is entering enemy waters 2. An order to assume plane guard 3. An order to refuel 4. An order to all ships to make a simultaneous course change 9-37. What pyrotechnic signal should a ship fire if she sights a previously undetected enemy submarine? 1. Two red rockets 2. Two white rockets in quick succession 3. Two white rockets in 1-minute intervals 4. Two white rockets in 2-minute intervals 9-38. To what individual does the master report all defects in communications equipment that can NOT be repaired on board? 1. OTC 2. NCSO 3. OCA 4. NCSORG 9-39. The three-letter signal vocabulary in chapter 12 of ATP 2,  volume II, begins with what letter? 1. A 2. P 3. X 4. Z 9-40. What kind of time is used in all convoy communication? 1. Local time 2. Greenwich mean time 3. Zone time 4. Apparent time 59 1. True 2. False 9-42. What is the yardarm arrangement required by an examination ship at night to indicate that the port is closed? 1. Three fixed white lights 2. Three fixed green lights 3. Three fixed red lights 4. Three fixed blue lights QUESTIONS 9-43 THROUGH 9-74 PERTAIN TO SIGNALMAN WATCH STANDING DUTIES. 9-43. What should be your primary concern(s) as a Signalman supervisor? 1. Always keeping a person available at the flag bag 2. Traffic handling and watch discipline 3. Keeping a close check on signal publications in use 4. Actual operation 9-44. Which of the following requirements is NOT necessary for personnel assigned as signal supervisor? 1. Knowing watch stander’s duties in various emergency bills 2. Being thoroughly familiar with applicable instructions and publications pertaining to visual communications 3. Being proficient in all forms of visual communication 4. Being able to locate and use all radio central equipment 9-45. Under what conditions should the signal supervisor conduct training for watch personnel? 1. On a scheduled basis only 2. As practicable under operating conditions 3. lmmediately after every signal sent and received 4. When maneuvers begin and the pace is rapid