5-46. If operational necessity dictates that a wheel be cooled immediately, a plane captain should get supervision from personnel who are in what rating? 1.  AM 2. AD 3. AE 4. AT 5-47. If you have to handle liquid oxygen, you should wear what type of gloves? 1. Tight-fitting rubber 2. Loose-fitting rubber 3. Tight-fitting leather 4. Loose-fitting leather 5-48. You are handling liquid oxygen. Which of the following is a description of the way you should wear your clothing? 1. Wear cuffless trousers 2. Tuck your trousers into your shoes 3. Roll up your sleeves 4. Roll up your trousers 5-49. Which of the following is a safety precaution that you should follow when working with liquid oxygen? 1. Do not carry matches in liquid oxygen handling areas 2. Keep tools free from oil and grease 3. Do not permit smoking in liquid oxygen handling areas 4. Each of the above 5-50. Predeployment training lectures for personnel associated with the flight deck should include which of the following topics? 1. Flight deck and hangar deck safety precautions 2. Tie-down requirements and techniques 3. Special shipboard maintenance procedures 4. Each of the above 5-51. During the launching and recovery of aircraft, all personnel that are not required by such operations should stand clear of ‘personnel involved in the launch and recovery operations. 1. True 2. False 5-52. Plane captains are required to wear (a) what color helmets and (b) what color flotation vests? 1. (a) Brown (b) green 2. (a) Brown (b) brown 3. (a) Green (b) brown 4. (a) Green (b) green 5-53. What person has the authority to approve aircraft jacking? 1. The maintenance chief 2. The maintenance officer 3. The shop supervisor 4. The aircraft handling officer 35