1274. When the turbine is released to spin, it accelerates without pump load As the turbine speed gets to the operational range, the pitch cam changes the angle of the blades to the intermediate position

A. 确认指针未超出范围。

B. 确认指针消失。

C. 确认指针灵敏。

A. Obey the safety precautions when you do work with high voltages.

B. When working with high resistances, you should follow the safety precautions.

C. The safety precautions are optional in an environment with high voltages.

A. Go-around arms when the airplane is in the air and trailing edge flaps are not up.

B. Go-around arms when glideslope mode is active and the trailing edge flaps are not up.

C. Go-around arms when the airplane is in the air and trailing edge flaps are in the up position.

A. Entrance stairs or step are connected with entrance doors and move accordingly.

B. Entrance stairs or step are integrated with entrance doors and operate together.

C. Although entrance stairs or step operate together with entrance doors,they are not integrated.

A. Both particle and chemical contaminants can adversely affect the nature and longevity of aircraft hydraulic system components.

B. Particular and chemical contamination is not conductive to the property and lifespan of aircraft hydraulic system.

C. The pollution of dust and chemicals will damage the performance and life of components in the aircrafts hydraulic system.

A. Wire the cable to the structure.

B. Secure the cable to the structure.

C. Attach the cable to the structure with wire.

A. CAUSED

B. RESULT IN

C. LEADED TO

A. In an emergency, you can use fuel F-43 as an alternative to fuels F-34 and F-40.

B. In an emergency, you can replace fuels F-43 with fuels F-34 and F-40.

C. In an emergency, fuel F-43 can be used as an alternate to fuels F-34 and F-40.

A. 每间隔20秒点击次。

B. 咔哒声的时间间隔必须为20秒。

C. 必须将咔哒声的时间间隔调整为20秒。

A. 如果间歇性的航道故障持续发生,PFC可以清除航道故障10次,之后此故障将被永久锁定。

B. 如果多次发生间歇性的航道故障,PFC将允许清除航道故障多达10次,如还不能清除它将被永久锁定。

C. 在间歇性的航道故障被永久锁定之前,PFC可以清除航道故障的次数可达10次,如果这些故障持续出现。