A、 Make sure that the hydraulic oil can be cleaned.
B、 Make sure that there is no dust in the hydraulic fluid.
C、 Make sure that the hydraulic fluid is uncontaminated.
答案：C
A、 Make sure that the hydraulic oil can be cleaned.
B、 Make sure that there is no dust in the hydraulic fluid.
C、 Make sure that the hydraulic fluid is uncontaminated.
答案：C
A. It is forbidden to go into the engine test area with approval.
B. Entering the engine test area must not be approved.
C. Approval is a must when entering the engine test area.
解析：解析：这道题考察的是AM96转向架二系悬挂装置的功能。转向架二系悬挂装置是连接轮对轴箱装置和转向架的装置，它的主要作用是支撑和保护轮对轴箱，使其能够在行驶过程中平稳运转。因此，说法“AM96转向架二系悬挂装置就是连接轮对轴箱装置和转向架的装置”是错误的。
举个生动的例子来帮助理解：想象一辆火车在铁轨上行驶，每个轮子都有一个轴箱，而这些轴箱需要通过悬挂装置连接到转向架上。悬挂装置就像是轮子和转向架之间的桥梁，起到支撑和保护的作用，使火车能够平稳行驶。如果没有悬挂装置，轮子和转向架之间的连接将会出现问题，影响火车的运行安全和稳定性。
A. Check all parts with clear defects in accordance with standard industry practices.
B. Check all parts for visible defects in accordance with standard industry practices.
C. Check all parts for serious defects in accordance with standard industry practices.
A. If a supply shutoff valve was closed within five minutes, no maintenance performance is needed and shutoff periods are not accumulated.
B. Maintenance action is not necessary and shutoff periods are not calculated unless the shutoff valve was closed for less than five minutes.
C. When a supply shutoff valve was closed for five minutes, maintenance action is hardly required and shutoff duration are not included.
A. The repair limits are not permitted as special equipment is required.
B. The repair limits are not mentioned as special equipment is required.
C. The repair limits are not set as special equipment is required.
A. The function of the portable water system is to store and send drinking water to the passengers.
B. The potable water system must keep and transfer the water to the toilet for washing only.
C. The purpose of the drinking water system is to store and deliver the water for drinking.
解析：解析：这道题考察的是客车的车钩采用的是什么装置。鞍式复原装置是用于铁路机车的一种装置，用于连接车辆。而客车的车钩通常采用的是自动钩挂装置或者其他类型的连接装置，因此新造客车的车钩不会采用鞍式复原装置，所以答案是错误。
生活中，我们可以通过类比来理解这个知识点。就好比我们平时乘坐的公交车或者地铁，车厢之间连接的部分通常是通过自动钩挂装置来连接的，而不是铁路机车上使用的鞍式复原装置。这样就更容易理解客车的车钩不会采用鞍式复原装置这个观点了。
A. The positive pressure relief valves are fail safe devices. If the aft outflow valve cann’t be closed, these positive pressure relief valves bleed fuselage pressure overboard.
B. The positive pressure relief valves are fail safe devices. If the positive pressure relief valves fails closed, these aft outflow valve bleed fuselage pressure overboard.
C. The positive pressure relief valves are fail safe devices. If the aft outflow valve fails closed, these positive pressure relief valves bleed fuselage pressure overboard.
A. If you don＇t do the OVHT/FIRE test, there is no indication of single loop operation in the flight compartment.
B. If you don＇t do the OVHT/FIRE test, the flight compartment has no single loop operation.
C. No indication of single loop operation in the flight compartment as you do the OVHT/FIRE test.
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.
A. The revision dates need to be displayed at each revision location.
B. The revision date needs to be displayed in an obvious place.
C. The revision date should be displayed on every revision page.
A. There are several steps to replace the light assembly.
B. The steps to replace the light assembly are not complicated.
C. The following steps are to change the light component.
