【单选题】
车辆外墙油漆脱离累计_______在运用客车质量鉴定中属于C类故障。___
A. 100mm×100mm
B. 200mm×200mm
C. 300mm×300mm
D. 400mm×400mm
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答案
C
解析
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【单选题】
25T型客车检修规程规定，用兆欧表测量电力配线，相对湿度为60％～85％时其绝缘电阻应为_______。___
A. ≥2M
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【单选题】
25T车的可编程控制器[简称PLC]供电后，绿色_______灯亮，橙色RUN灯亮，红色ERR灯灭；连接触摸屏或网关后橙色COM灯闪烁。___
A. PWR
B. ZD
C. FH
D. XS
【单选题】
用1000V级绝缘表测量DC600V干线的线间和对地的绝缘电阻值应_______[相对湿度在60%～85%]。___
A. 2～2.3M
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【单选题】
25K型空调客车的空调控制柜[KLC40C-1T1]是通过电流继电器FA6，FA7对两台_______进行过载保护的。___
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【单选题】
当交流断电时，电池在应急控制系统的控制下向轴温报警装置、应急灯、_______等需应急工作的直流负载供电。___
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统型应急电源的三相380V交流电源接到_______连接的三相降压变压器B2初级，三相降压变压器B2的次级接到整流模块U2。___
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【单选题】
客车电气综合控制柜的主电路中接有DC600V_______[6～150mA可调，共分六挡]，当漏电值超过设定值时，自动切断供电，同时漏电指示灯亮。___
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【单选题】
25T型客车的逆变器箱主电路为_______电路，采用IGBT作为开关器件，具有开关频率高、驱动简单、损耗低的特点。___
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【单选题】
25K型空调客车的空调控制柜[KLC40C-1T1]中KT1，KT2的时间设定值为_______。[1.0分]___
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【单选题】
25K型空调客车的空调控制柜[KLC40C-1T1]的客室电加热控制回路须经过_______中3Q，4Q的控制。___
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【单选题】
25T型客车的逆变器在20kW负载状态下稳定运行时，突加制冷压缩机负载[功率为4.5～5.5kW]，逆变器_______。___
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【单选题】
25T型客车的充电器进行模拟过分相试验：充电器每工作_______，输入电源断电10s，充电器应能正常工作，该项试验连续模拟10次。___
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【单选题】
Traffic information should include_________
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【单选题】
The altimeter setting used in en-route flight should be______hpa___
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【单选题】
Larger separations than the specified minima should be applied whenever in.___
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_______ is a service provided to notify appropriate organizations regarding aircraft in need of search and rescue aid, and assist such organizations as required.___
A. alerting service
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【单选题】
Visibility is the ability as determined by atmospheric conditions and expressed in unit______.___
A. meters
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【单选题】
SIGMET is a weather advisory issued concerning weather______to the safety of all aircraft.___
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【单选题】
Flight level is a______of constant atmospheric pressure which is related to a specific pressure datum 1013.2hpa.___
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【单选题】
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【单选题】
The true airspeed is the airspeed of an aircraft relative to______air.___
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【单选题】
Air speed is the speed of an aircraft relative to its surrounding______.___
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【单选题】
“Aircraft” means any machine that can derive support in the______from there actions of the air other than there actions of the air against the earth's surface.___
A. atmosphere
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【单选题】
If the radar receiver detects the retarding time tR＝500mS between transmitting pulse and receiving pulse,now the target is______km from the radar station.___
A. 150
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【单选题】
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A. wanting
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【单选题】
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【单选题】
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【单选题】
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【单选题】
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【单选题】
“______”is a notice containing information concerning the establishment,condition or change in any aeronautical facility service procedure or hazard,the timely knowledge of which is essential to personnel concerned with flight operations.___
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【单选题】
“______”means visibility,cloud and present weather better than prescribed values or conditions.___
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【单选题】
“______”is the height above the ground or water of the base of the lowest layer of cloud below 6000m covering more than half sky.___
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管制员在对空指挥过程中，应当主动地控制一句管制指令中所包含的管制指令的内容。一般情况下，管制员发布的一句管制指令中，包含的管制内容不应当超过___项
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当观察到两个或多个雷达位置指示符相近，或观察到在同时作相似的移动以及遇到其它引起对目标怀疑的情况时，管制员应当___。
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【单选题】
“AIP”is“”___
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【单选题】
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VHF communication frequency is_________
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The rmalth under storm is caused by_________
A. heating imbalance of the earth’s surface
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【单选题】
Which is not included in a Flight Plan.___
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【单选题】
________is the ratio of true air speed to the speed of sound.___
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_______is a specified area within or over which there may exist activities constituting a potential danger to aircraft___
A. Active area
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_______istheactualflightpathofanaircraftoverthesurfaceoftheearth___
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_______isageographicallocationinrelationtowhichthepositionofanaircraft,isreported___
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