A、 Remove the test cap between the Precooler Control Valve and the 3908 sensor on the control pressure sense line and ensure that there is air flowing out of the port.
B、 From precooler control valve to 3908 sensor, remove the sense line test cap, make certain that the air flows from the test hub.
C、 The purpose of the test cap removal from the Precooler Control Valve to the 3908 sensor is to guarantee that there is airflow at the test port.
答案：A
A、 Remove the test cap between the Precooler Control Valve and the 3908 sensor on the control pressure sense line and ensure that there is air flowing out of the port.
B、 From precooler control valve to 3908 sensor, remove the sense line test cap, make certain that the air flows from the test hub.
C、 The purpose of the test cap removal from the Precooler Control Valve to the 3908 sensor is to guarantee that there is airflow at the test port.
答案：A
A. This procedure is only void in digital mode.
B. This procedure is only valid in digital mode.
C. This procedure is only ineffective in digital mode.
A. The lean fuel flow mixtures will be provided by the EGT indicators under different engine powers.
B. EGT indicators constantly monitor the lean fuel flow mixtures wherever the thrust lever is.
C. The lean fuel flow mixtures are induced by the EGT indicators to various powerplants.
A. Air filter needs to be replaced on regular maintenance schedule, because it often causes low flow through the equipment cooling supply system. Quickly release the tabs on the air filter housing cover to reach the filters.
B. Low flow through the equipment cooling supply system is caused by a contaminated air filter, therefore regular replacement is necessary, release the quick release tabs on the air filter housing cover to approach to the filters.
C. A blocked air filter which causes low flow through the equipment cooling supply system needs replacement on a regular maintenance schedule. Release the quick release tabs on the air filter housing cover to reach the filters.
A. Retesting and reviewing test results are optional due to discrepancies in the fuel/water sample and the ability of the detection kits to continuously measure the level of microbial growth.
B. It is very important to do the test again and confirm test results because of differences in the fuel/water sample and the ability of the detection kits to continuously measure the level of microbial growth.
C. It is mandatory to retest and evaluate test results to make sure the differences in the fuel/water sample and the ability of the detection kits to witness the level of microbial growth.
A. The emergency procedures check list should be in precise form. The list not only tells pilots which items to check, but also provides everything about operation details of systems.
B. The emergency procedures check list should be in complicated form. The list tells pilots which systems to be investigated. It also provides operation details of some systems.
C. The emergency procedures check list should be in brief form. The list tells pilots which items to be examined. It provides nothing about operation details of any system.
A. If the drain hole is blocked, clean it.
B. If the drain hole is leaked, clean it.
C. If the drain hole is locked, clean it.
A. Ignore the absence of contamination in the fuel sample and continue with the procedure.
B. Continue with the procedure if the fuel sample does not exhibit any contamination.
C. Proceed with the procedure regardless of any contamination found in the fuel sample.
A. Licensed personnel appropriately finish the requirements of all other maintenance on airplane.
B. All other maintenance required on airplane should be done by the personnel who have the corresponding license.
C. All other maintenance requires that the properly licensed personnel should be on airplane.
A. For "emergency", the related failure should be responded immediately, for example, the total engine failure, fire or smoke, sudden cabin pressure lost.
B. An "Emergency" almost including a serious failure that requires later response, such as a total engines failure, flame out or smoke, or rapid cabin pressurization.
C. For "emergency", the related failure should be treated immediately, for example, the total engine is not malfunctioning, fire or smoke, sudden cabin pressure lost.
A. They comprise the three parts as follows:tail assembly,the structures at the rear of the airplane ,structures forming part of and attached to the wing.
B. They include three parts,one of them is tail assembly,one of them is the structures part at the rear of the airplane,one of them is structures part that forming part of and attached to the wing.
C. They include two parts,one of them is tail assembly at the rear of the airplane that serve to control and maneuver the aircraft,another of them is structures part that forming part of and attached to the wing.
