A、 A maximum distance of 50 feet is required between consumable materials and the work area.
B、 Keep flammable materials at a minimum distance of 50 feet from the work area.
C、 Explosive materials must be kept at least 50 feet away from the work area.
答案：B
A、 A maximum distance of 50 feet is required between consumable materials and the work area.
B、 Keep flammable materials at a minimum distance of 50 feet from the work area.
C、 Explosive materials must be kept at least 50 feet away from the work area.
答案：B
A. When a low flow or undercooling condition occurs, the low flow sensor sends an alarm signal to the flight compartment for warning.
B. When a low flow or not sufficient cooling condition occurs, the low flow sensor supplies an alarm signal to the flight compartment for annunciation.
C. When a low flow or insufficient cooling condition occurs, the low flow sensor applies a alarm signal to the flight compartment for caution.
A. Make sure that the bolt heads are attached to the skin.
B. Make sure that the screw heads are connected with the metal.
C. Make sure that the fastener heads are flush with the skin.
A. 检修时更换的螺母和垫圈不要丢弃，应该进行检查。
B. 如果在检查过程中拆卸了螺母和垫圈，则应更换。不要重复使用。
C. 对拆下的螺母和垫圈要进行检查，损坏的件不可以重复使用。
A. Remove the test cap between the Precooler Control Valve and the 3908 sensor on the control pressure sense line and ensure that there is air flowing out of the port.
B. From precooler control valve to 3908 sensor, remove the sense line test cap, make certain that the air flows from the test hub.
C. The purpose of the test cap removal from the Precooler Control Valve to the 3908 sensor is to guarantee that there is airflow at the test port.
A. When you access to the rear fuselage through the access panel.
B. When you get to the aft aircraft body through the control panel.
C. As you reach to the aft part of the aircraft by the visit door.
A. 本段还应说明，除已明确的检查项目外，适航指令可能要求执行其他检查项目。
B. 本段还应说明，除已完成的检查项目外，还应完成哪些适航指令可能要求执行的其他检查项目。
C. 本段还应说明其他适航指令要求执行的固定检查项目和其他检查项目。
A. 此章节包括了激励、传感、计算、增益、控制、作动和警告装置。
B. 此章节包括了接通、感应、计算、放大、控制、作动和警告装置。
C. 此章节包括了啮合、感受、计算、反馈、控制、作动和警告装置。
A. 通常句子的上下文会向读者提供足够的信息来获知正确的意思。
B. 通常句子的内容会向读者提供足够的信息来获知正确的意思。
C. 通常句子的内容会向读者提供足够的信息来获知已被修正的意思。
A. 在释压测试期间，不得开启舱门。
B. 在增压测试期间，确保舱门关闭。
C. 进行水压测试时，确保舱门关闭。
A. 描述飞机机翼襟翼、俯冲制动或扰流板系统时，应描述其应用如何影响俯仰姿态、空速、配平和失速速度。
B. 描述飞机机翼翼尖、俯冲制动或扰流板系统时，应描述其应用如何影响俯仰姿态、表速、配平和失速速度。
C. 描述飞机机翼襟翼、俯冲减速板或扰流板系统时，应描述各自工作时如何影响俯仰姿势、空速、配平和失速速度。
