455. The flap angles are specified in Table 1

A. If you perform the ground test unit, ensure that pressure regulator is turned to Zero.

B. Before you do the ground test, make sure that you have set the pressure regulator to Zero.

C. Before you operate the ground test unit, make sure that the pressure regulator is set to zero.

A. It is fine to use alternative materials

B. It is forbidden to use alternative materials

C. The alternative materials are not unserviceable

A. A gear pump supplies hydraulic fluid to the unit.

B. A centrifugal pump supplies hydraulic fluid to the unit.

C. A centrosymmetric pump supplies hydraulic fluid to the unit.

A. You can use the module to disassemble the disassembly fixture.

B. The module that you can use to disassemble is the disassembly fixture

C. You can use the disassembly fixture to disassemble the module.

A. Adjust the door and operating the rod to make the rod aligns with the weld point.

B. The rod for the door operating should be adjusted until it aligns with the attachment point.

C. Adjust the door operating rod until it staggers the attachment point.

A. 与本规范的符合性相关的重要意见应予以公布。

B. 对于和本规范相抵触的重大意见应予以公布。

C. 应发布符合本规范的重要议题。

A. List the tools, equipment and materials used for work not normally included in mechanical tools.

B. List the tools, equipment and materials required in the job which are normally included in the mechanic＇s tools.

C. List the tools, equipment and materials required in the job which are not normally included in the mechanic＇s tools.

A. 如果故障频繁出现,进行系统测试。

B. 如果故障定期出现,进行系统测试。

C. 如果故障随机出现,进行操作测试。

A. A visible signal is used in aural warning device when a problem occurs.

B. A signal both can be heard and seen is used in the Aural warning device.

C. Aural warning device emits a signal that can be heard to represent a problem.

A. 复位装置的操作方向相反

B. 向相反的方向操作复位装置

C. 操作复位装置的方向是反的