These tests shall be self-contained.

A. If the microswitch becomes unserviceable, proceed with the actuator activation procedure to damage the valve.

B. When the microswitch is functional, ensure the deactivation procedure of the actuator is performed to avoid any harm to the valve.

C. If the microswitch malfunctions, execute the actuator deactivation procedure to protect the valve from harm.

A. When this material comes into contact with hot surfaces, it emits hazardous fumes.

B. Contact between hot surfaces and this material results in the release of harmful heat.

C. Dangerous fumes are consumed by this material upon contact with hot surfaces.

A. The auxiliary battery and auxiliary battery charger and the main battery connect together during non-normal conditions to help supply power.

B. In normal conditions,the auxiliary battery and auxiliary battery charger should be disconnected.

C. In non-normal conditions,the auxiliary battery and auxiliary battry charger should be disconnected.

A. Data and parameters are gathered by three computers from the systems and put together on the data link to the display unit.

B. Data and parameters are generated by three computers in the system and are displayed on the display unit through the data link.

C. After analyzing the data and parameters from the system, three computers send the final result to the data link for display.

A. The airworthiness and safe operation of an airplane is assured if it＇s used as its original design purpose, properly inspected and carefully maintained.

B. The manufacturer is intended to utilize an airplane with sound inspection and maintenance practices because that is the basis for assuring the airplane remains airworthy and safe to operate.

C. The airplane is designed to be used as the manufacturer＇s intention. Users shall properly inspect the airplane and do sufficient maintenance to assure its airworthiness and operation safety.

A. English is not often the mother language of the readers of technical files.

B. English is not often the private language of the readers of technical books.

C. English is not often the required language of the readers of technical pamphlet.

A. Use a drill bit not less than 45 mm long.

B. Use a drill bit that has a maximum length of 45 mm.

C. The drill bit used is more than 45 mm.

A. Manufacturers would like to reserve and exercise the right to make reasonable judgments about the depth and scope of the contents of their publications.

B. Manufacturers are requested to reserve and exercise the right to judge contents of their publications of reasonable depth and scope.

C. Manufacturers are required to reserve the right of sound judgment on the contents of their publications by the bureau.

A. If the pump is not suitable to be used, replace it.

B. If the pump is outmoded, replace it.

C. If the pump malfunctions, change the location for it.

A. If the valve is the source of the fuel leak, discard the valve seals and install new ones.

B. If the fuel leaks out of the valve, reinstall the valve seals.

C. If the fuel leak flows towards the valve, discard the valve seals and install new ones.