Signalman 1 & C - Historic Naval Ships Association

ASSIGNMENT 1Textbook Assignment: "Signal Equipment," "Messages," and "Allied CommunicationsProcedures," chapters 1 through 4, pages 1-1 through 4-46.1-1. The lamp-supporting yoke of the 1-6. The increase in the light intensity12-inch incandescent searchlight isdesigned for what purpose?of the 12-inch mercury-xenon greatlyincreases which of the followingconditions?1-2.1-3.1-4.1. To allow the light to be swungin an arc2. To hold the light in place3. To control the up and downmovement of the light4. To elevate the lightAdjustment of the 12-inchincandescent searchlight so it canbe elevated or depressed is thefunction of what device?1. Lamp-supporting yoke2. Signaling shutters3. Trunnion bearings4. Hinge arrangementWhen not in use, the 12-inchincandescent searchlight should belocked in what position?1. Face up2. Face down3. Inboard4. Fore and aftFor what reason should you operatethe 12-inch incandescent searchlighta few minutes after lubrication withthe glass door open and the coverremoved?1. To reduce clouding of thereflector2. To allow the lubricant toevaporate3. To make sure the searchlight isworking properly4. To reduce the chance of thesearchlight exploding1-5. What step should you perform to takeup the wear in the leather bumpersof the 12-inch incandescentsearchlight?1. Adjust the shutter stop screwsat regular intervals2. Replace them as soon as the wearappears3. Keep the shutters open4. Keep the shutters closedl-7.1. Glare2. Range3. Voltage4. RadiationBecause the life of themercury-xenon lamp is reducedconsiderably at extreme angles, thelight should NOT be depressed orelevated more than how many degreesfor extended periods of time?1. 5°2. 10°3. 20°4. 30°1-8. Initially, the lamp of themercury-xenon burns about whatpercent of its designed intensity?1. 15%2. 20%3. 25%4. 30%1-9. To become qualified to performelectrical maintenance on asearchlight, a member of the signalgang must be qualified by whatindividual?1. Communication officer2. Executive officer3. An Electrician's Mate4. Engineer officer1-10. What problem is corrected bycentering the transverse plate ofthe 12-inch mercury-xenonsearchlight?l-11.1. Centering of the light beam2. Focusing of the light beam3. Elevation of the locking pin4. Elevation of the vertical beamWhat is the effective range, inyards, of the multipurpose light?1. 1,0002. 2,0003. 3,0004. 4,0001