Solenoid valves shall be shown with a notation indicating whether the valve is spring-loaded to the open or closed position.

A. Rapidly and fully retract Ram Air Turbine and make sure that it doesn＇t attach to other parts.

B. Slowly and fully extend Ram Air Turbine and make sure that it doesn＇t touch other parts.

C. Make sure that the Ram Air Turbine is completely opened and it doesn＇t touch the other unit.

A. Use white paper with good strength characteristics and enough weight and substance to eliminate excessive print leakage when printing on both sides.

B. Use good white paper with high strength quality and of adequate weight to delete excessive show-through when printed on both sides.

C. Use white paper with good strength and of sufficient weight and substance to prevent overmuch ink show-through the paper when printed on both sides.

A. 这些组件和部件产生、控制、分配和点燃部件的燃料气缸，为活塞式发动机或涡轮发动机的燃烧室或推力增强器中的空气混合物提供电流。

B. 这些组件和部件能够产生、控制、分配用于点燃活塞发动机的气缸以及涡轮发动机的燃烧室或加力燃烧室中的油气混合气所需的电流。

C. 这些单元和部件产生、控制、分配和点燃部件的燃料气缸，为涡喷式发动机或涡轮发动机的燃烧室或推力增强器中的空气混合物提供电流。

A. Record the results if the frequency changes.

B. Alter the phase and record the results.

C. Change the frequency and record the results.

A. The operational test of HFS-900D transceivers is an internal functions check of the HF transceiver and it is a BITE test.

B. The BITE test for the HFS-900D transceivers is the operation test that does the inner check of the HF transceiver.

C. The check of the internal functions of the HF transceiver is a BITE test related to HFS-900D transceivers.

A. 通常，涡轮发动机转速计会以涡轮额定最大转速的百分比测量转速。

B. 涡轮发动机转速计通常会测量一个百分比转速，并与涡轮的正常最大转速比对。

C. 涡轮发动机转速计通常测量的速度与涡轮发动机最大名义转速成正比。

A. 此材料有良好的防腐作用。

B. 这种材料被证明具有优异的防退化性能。

C. 现有涂料的防腐效果非常显著。

A. 确保拉力连杆不会卡住起落架。

B. 确保阻力支柱不会遮蔽起落架。

C. 确保阻力撑杆不会阻碍起落架。

A. Briefly describe and explain principle of operation of any new kinds of flight instruments.

B. The working principles of various new flight gauges are easily introduced and expressed.

C. The new types of flight facilities should be described and explained shortly.

A. The aft lanyard attached to the access door to the right APU compartment is broken.

B. The after end of lanyard attached to the access door to the right APU compartment is fractured.

C. The lanyard attached to the after end of the right access door to the APU compartment is frayed.