To depressurize standby system, the hydraulic system A has to be depressurized to open the rudder hydraulic system selector valve, allowing hydraulic fluid flow to the lower rudder actuator.

A. Because the inflation tests and material inspections can identify and condemn rafts which have more than minor installation defects, rafts which pass the tests and inspections may be in service for a period time with no fixed limit.

B. As the inflation tests and material inspections can affirm and declare the minor installation defects of the rafts, rafts checked by tests and inspections may come into service with no definition.

C. Rafts succeed in tests and inspections may keep the service indefinitely from a time that the inflation tests and material inspections identified and announced the rafts with many minor installation defects.

A. The parts must be assembled tightly.

B. Make sure that the parts are attached securely.

C. The parts must be assembled loosely.

A. Acquire the flight data from the recorder.

B. Eliminate the tape about the information after flight.

C. Remove a recording of flight data from the tape.

A. There will be no fire.

B. Fire will occur sometimes.

C. There is danger of fire.

A. The center of gravity moves along with the weight of the wings.

B. The center of gravity moves in relation to forces applied on the wings.

C. The center of gravity moves evenly to the loads of the wings.

A. Rivets can be used to separate the two stringers.

B. You can use two rivets to attach the stringers together.

C. Use rivets to connect the two stringers together.

A. Legal meaning whatsoever and implications couldn＇t be enclosed to the rules and terms in this document.

B. No legal significance or meanings should be fixed to the regulations and terms in this document.

C. The rules and terms in this document have no legal meaning or imply something.

A. One or more separate documents for some types of equipment such as avionics and instrumentation may be required because they change frequently or they have various combinations.

B. Some types of equipment such as avionics and instrumentation are changed regularly or combined in different forms, requiring to have one or more separate documents.

C. Some types of equipment such as avionics and instrumentation are often revised or combined differently to require one or more separate documents.

A. Scrap the unit at the next check.

B. Repeat the unit at the next check.

C. Change the unit when performing next check.

A. Your skin and lungs can be protected.

B. Your skin and lungs can be harmed.

C. Your skin and lungs can be harmed suddenly.