QUESTIONS 1-34 THROUGH 1-45 PERTAIN TO THE 12-INCH INCANDESCENT SEARCHLIGHT. 1-34. What part of the searchlight assembly is designed to allow the light to be swung in an arc? 1. The housing drum 2. The lamp-supporting yoke 3. The brace between the mounting bracket and the yoke 4. The extension between the drum and the locking clamp 1-35. What size watt lamp is used in the 12-inch incandescent searchlight? 1. 500 2. 1,000 3. 1,500 4. 2,000 1-36. The trunnion bearings permit what action? 1. Removal of the drum from the yoke 2. Movement of the drum in train 3. Adjustment of the light so it can be elevated or depressed 4. Adjustment of the drum in bearing 1-37. At night, how should you train your searchlight on the receiver? 1. Directly on the receiver 2. Slightly under or above the receiver 3. To the left of the receiver 4. To the right of the receiver 1-38. How are the signaling shutters protected from damage? 1. By using a smooth, easy motion 2. By slowly releasing the shutters 3. By two leather bumpers 4. By the hinge arrangement of the shutters 1-39. When not in use, the searchlight should be locked in what position? 1. Fore and aft 2. Face up 3. Face down 4. Inboard 1-40. What type of maintenance is performed on the searchlight when the ship is going through an overhaul? 1. Start-up maintenance 2. Weekly maintenance 3. Quarterly maintenance 4. Lay-up maintenance 1-41. How often should the electrical leads of searchlights be checked? 1. Daily 2. Weekly 3. Monthly 4. Yearly 1-42. For what reason is the searchlight operated a few minutes after lubrication with the glass door and cover removed? 1. To reduce clouding of the reflectors 2. To allow the lubricant to evaporate 3. To make sure the searchlight is working properly 4. To make sure no one uses the searchlight too soon after lubrication 1-43. For what reason should the two shutter stop screws be adjusted at regular intervals? 1. To take up wear in the leather bumpers 2. To prevent bending of the shutters 3. To keep the shutters open 4. To keep the shutters closed 1-44. At least how often should the reflector be cleaned? 1. As required by your leading Signalman 2. As required by the communications officer 3. Monthly 4. Quarterly and/or when needed 1-45. Who normally replaces the lamp and focuses the searchlight? 1. The Signalman 2. The Opticalman 3. The IC Electrician 4. The Electrician’s Mate 4