Light L4 comes on in 5 seconds or less .

A. Only the certified personnel can complete the modification or repair to the aircraft.

B. Pay attention that inspections or maintenance work ought to be carried out by mechanics.

C. Modifications or repairs to aircraft should be achieved by releasing staff.

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. After three full cycles, extend and retract the actuator.

B. You should extend and retract the actuator through three complete cycles.

C. Do nothing to the actuator after three complete cycles.

A. Choose the hydraulic system you will apply pressure.

B. Pressurize the selected hydraulic system.

C. Choose the hydraulic system you will depressurize.

A. Through releasing the handle, the gas start to inflate the slide-raft .

B. Operation of the handle releases the gas which can inflate the slide-raft.

C. The gas handle operates to inflate the slide-raft.

A. An "Airplane Weighing Form" shall be included in each handbook and the form shall contain an airplane side view that shows the location of weighing points (using jacking points or landing gear) relative to the datum line.

B. Each handbook shall provide an aircraft side view that is included in an "Airplane Weighing Form" to show the position of weighing points (using jacking points or landing gear) related to the datum line.

C. An airplane three view that shows the weighing points ((using jacking points or undercarriage) relative to the datum line shall be excluded in an "Airplane Weighing Form" of each handbook.

A. Values in the limited range should not include parameters or variables not mentioned in the manual.

B. The specification of a given range of values in the manual excludes parameters and variables.

C. The range of values should not exceed the parameters or variables given in the manual.

A. The computer needs to be backup at each interval.

B. The backup of the computer is necessary.

C. Back up your computer regularly.

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. Detection system will provide information about how to detect ice.

B. Detection system is utilized to find and display ice formation.

C. The detection information of ice is from the indication system.