A flight starts when the air mode is sensed for longer than 30 seconds.

A. To simplify the overall master wiring diagram to make it easy to understand, complex systems should be described in terms of functional interconnections.

B. The overall master wiring diagrams are too complex to be understandable, so the presentation of the systems shall be simplified and the interconnections should be plainly noted.

C. To make the wiring diagrams simplified and understandable, the complex systems should be described in system-functions. The connection of each system shall be presented clearly.

A. The turbines are used to extract energy from the exhaust gases and are coupled to the crankshaft.

B. The turbines can drive energy to exhaust gas and connects crankshaft.

C. The turbines can extract energy from the exhaust gases and drive the crankshaft.

A. For data about the location of circuit breakers, refer to the wiring list.

B. Refer to the wiring list about the adapters location data.

C. For data about the location of circuit breakers, refer to the wiring diagram.

A. The power plant uses an air vent or propeller to produce power.

B. The power plant develops thrust either through the exhaust or through a propeller.

C. The power plant generates propulsion with the aid of the exhaust or a propeller.

A. 永久装订的手册页无需注明日期。

B. 临时装订的手册页无需注明日期。

C. 临时装订的手册页无需注释。

A. Transport the part to the overhaul shop.

B. Transport the part to the maintenance shop.

C. Remove the part to the overhaul shop.

A. Find out which door has a fault and is closed.

B. Make sure that which door has a failure.

C. Find out which door has not closed.

A. Operational Test: That procedure required to ascertain only that a system or unit is operable. These tests should require no special equipment or facilities other than that are installed on the aircraft and should be comparable to the tests performed by the flight crew. It is not intended that the operational test of the unit shall meet the specifications and tolerances ordinarily established for overhaul, or major maintenance periods.

B. Operational Test: That procedure required to ascertain only that a system or unit is operable. These tests should require no special equipment or facilities other than that are installed on the aircraft and should be comparable to the tests performed by the flight crew. It is not intended that the operational test of the unit shall meet the specifications and errors ordinarily established for overhaul, or significant maintenance periods.

C. Operational Test: That procedure required to ascertain only that a system or unit is operable. These tests should require no special equipment or facilities other than that are installed on the aircraft and should be comparable to the tests performed by the flight crew. It is not intended that the operational test of the unit shall meet the specifications and tolerances ordinarily established for overhaul, or significant maintenance periods.

A. 前面的每本手册都应该提供有效页清单。

B. 每本手册的前边都要提供有效页清单。

C. 页码有效性应该列在每本手册的前言里。

A. 当飞机在地面上时支撑飞机机头的那部分系统，包括减震支柱、阻力支柱、门、连接装置、固定螺栓等。

B. 当飞机在地面上时支撑飞机机头的那部分系统。包括刹车、浮子、门、轮胎、固定螺栓等。

C. 当飞机在地面上时支撑飞机机头的那部分系统。包括驱动机构、转向架饰件、门、跳板、上下门闩等。