A、 If a supply shutoff valve was closed within five minutes, no maintenance performance is needed and shutoff periods are not accumulated.
B、 Maintenance action is not necessary and shutoff periods are not calculated unless the shutoff valve was closed for less than five minutes.
C、 When a supply shutoff valve was closed for five minutes, maintenance action is hardly required and shutoff duration are not included.
答案：A
A、 If a supply shutoff valve was closed within five minutes, no maintenance performance is needed and shutoff periods are not accumulated.
B、 Maintenance action is not necessary and shutoff periods are not calculated unless the shutoff valve was closed for less than five minutes.
C、 When a supply shutoff valve was closed for five minutes, maintenance action is hardly required and shutoff duration are not included.
答案：A
A. The first tape is applied on the cutout, then the second and third tapes are applied horizontally.
B. Apply the first layer of tape across the cutout and the second and third layers diagonally.
C. First attach the tape to the cutout, and attach the second and third layers of tape perpendicularly .
A. 标准空速是指飞机的表显速度。
B. 校准空速是指飞机的指示速度。
C. 飞机的指示空速应为校准后的速度。
A. Rise the cylinder up its install position.
B. Lift the cylinder above its installed position.
C. Lift the bushings above its installing position.
A. 不要加注过量燃油。
B. 不要使用未知性能的燃油。
C. 不要使用性能未知的油液。
A. Each Chapter or Section is to begin with a specific instruction of the system and its Operation and should be labeled “Description and Operation”.
B. A general description of the system begins with each Chapter or Section and its operation and should be labeled “Description and Operation”.
C. Each Chapter or Section is to start with a general description of the system and its operation and should be labeled “Description and Operation”.
A. Only the certified personnel can complete the modification or repair to the aircraft.
B. Pay attention that inspections or maintenance work ought to be carried out by mechanics.
C. Modifications or repairs to aircraft should be achieved by releasing staff.
A. 如果使用一个公司出版样式的手册，那么手册的格式和布局应当遵循本规范。
B. 如果一个公司出版的手册被使用，那么该手册的格式和布局即纳入规范的要求。
C. 如果一个公司使用了按自己的样式出版的手册，那么手册的格式和布局须遵循本规范。
A. 为增压飞机和涡轮增压或涡轮螺旋桨动力的飞机，最大高度限制应该予以说明。
B. 对于增压的飞机以及涡轮增压或涡桨为动力的飞机，应规定最高飞行高度限制。
C. 为飞机增压和发动机涡轮增压或螺旋桨动力设置，应说明最高限制。
A. 给组件涂上正确的颜色。
B. 用合适的颜色识别组件。
C. 对配件进行颜色编码。
A. 加油软管不能碰到油箱的边缘。
B. 加油软管不必碰到油箱的边缘。
C. 加油软管应该固定在油箱的边缘。
