【单选题】
(B737ng)关于SPCU作用正确的是___
A. 控制直流电源
B. 分配直流电源
C. A&B对
D. A&B都不对
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答案
C
解析
暂无解析
相关试题
【单选题】
(B737ng)关于电瓶充电机说法正确的是___
A. 必须只用APU供电才能给电瓶充电
B. 可以单接通地面电源给电瓶充电
C. 可以单接通地面服务电源给电瓶充电
D. B&C对
【单选题】
(B737ng)如果P5-13电源面板上有信息BAT CHG INOP I出现，其中字母I代表？___
A. 没特别意思，按FIM排故即可
B. 没特别意思，不须按FIM排故即可
C. 特指瞬间故障，要按FIM排故
D. 特指瞬间故障，不须按FIM排故,直接在面板上抹除即可
【单选题】
(B737ng)外电源插座面板上的“不使用灯”和“连接灯”都亮,表示外电源: ___
A. A． 插头接触不良,外电源不能使用
B. B． 插头接触正常,外电源不能使用
C. C． 插头接触正常,外电源未被使用
D. D． 以上答案都不正确
【单选题】
(B737ng)外电源接头面板上的“未使用”和“连接”灯亮时,外电源:___
A. A．插头接触不良,外电源不能使用
B. B．插头接触正常,外电源不能使用
C. C．插头接触正常,外电源不能使用
D. D．以上答案都不对
【单选题】
(B737ng)自动厨房卸载电路的作用是?___
A. A.一条发电机汇流条断电时断开厨房供电,保证重要系统供电.
B. B.APU供电超载时断开厨房供电,保证重要系统供电.
C. C.厨房电负载过高时断开厨房供电,保证重要系统供电.
D. D.A和B
【单选题】
(B737ng)737-3/4/5电源面板的BUS OFF灯相当于737NG的什么灯？___
A. TRANSFER BUS OFF
B. SOURCE OFF
C. GEN OFF
D. 一样没变
【单选题】
(B737ng)737-3/4/5和737NG相比下列控制盒的异同点说法错误的是：APU的GCU、BPCU、发动机GCU___
A. 都可以通过控制盒的前面板做BITE
B. 都监控相应部件的电源质量
C. 都相互交连，实现非并联供电
D. 都有控制和保护的功能
【单选题】
(B737ng)737-3/4/5和737NG相比下列控制盒有几个安装位置一样：APU的GCU、BPCU、发动机GCU___
A. 四个
B. 两个
C. 三个
D. 以上都错
【单选题】
(B737ng)737NG的P5-13板作什么电源的BITE。所以它取消了737-3/4/5的什么面板？___
A. 直流电 M238
B. 交流电 M400
C. 直流电 M238&M400
D. 直流电&交流电M238&M400
【单选题】
(B737ng)737NG电源面板的DRIVE灯亮的所有条件是什么？___
A. 面板直接监控IDG，当低滑油压力或ENG运行时探测到IDG低频
B. 由GCU控制，ENG运行时探测到IDG低频
C. 由GCU控制，探测到IDG内滑油压力低于极限值
D. B & C对
【单选题】
(B737ng)737NG发电机脱开控制和737-3/4/5有什么不同？___
A. 由GCU控制，要脱开要提ENG起动手柄到RUN位
B. 由一继电器控制，要脱开要提ENG起动手柄到RUN位
C. 没有区别
D. GCU参与控制
【单选题】
(B737ng)737电源系统有哪些保护方式，正确的是：___
A. 过压、过频、电流差动。
B. 过压、欠压、过频、欠频、过流、电流差动。
C. 欠频、电流差动。
D. 过流、欠压。
【单选题】
(B737ng)737飞机APU发电机地面工作___
A. 既可供电又可供气
B. 可先后接通左右两边电门向网络供电
C. 可同时接通左右两边电门向网络供电
D. 可自动向左右两边网络供电
【单选题】
(B737ng)AC Standby Bus(交流备用汇流条)正常的供电来自___
A. AC TRANSFER BUS 2
B. AC TRANSFER BUS 1
C. AC MAIN BUS 2
D. AC MAIN BUS 1
【单选题】
(B737ng)P5-13电源面板上有信息BAT CHG INOP I。其中字母I代表？___
A. 没特别意思，按FIM排故即可
B. 没特别意思，不须按FIM排故即可
C. 特指瞬间故障，不须按FIM排故,直接在面板上抹除即可
D. 特指瞬间故障，要按FIM排故
【单选题】
(B737ng)start converter unit (SCU)的作用是___
A. 在APU起动过程中直接控制起动发电机来带动APU起动，和ECU没关系
B. 调节APU起动发电机的输出
C. 在APU起动过程中，受ECU控制来监控起动发电机来带动APU起动
D. B & C对
【单选题】
(B737ng)采用恒速传动装置的发电机若频率负载特性不一致___
A. 不能并联
B. 可以并联但有功负载不相等
C. 可以并联但并联后电压不相等
D. 可以并联但并联后频率不相等
【单选题】
(B737ng)当“BUS XFR”电门放于AUTO位，那些控制有自动转换功能？___
A. GCR，AGCR
B. BTB，DC连接继电器，TRU3
C. APB，EPC
D. RCCB，K1，K2，K3，K5，K8
【单选题】
(B737ng)当给飞机接入外部直流电源时，应：___
A. A. 断开电瓶充电跳开关
B. B. 断开外部直流跳开关
C. C. 断开外部直流跳开关，闭合电瓶充电跳开关
D. D. 断开电瓶充电跳开关，闭合外部直流跳开关
【单选题】
(B737ng)当外电源接头面板上的“未使用”和“连接”灯亮时表示外电源:___
A. 插头接触不良,外电源不能使用
B. 插头接触正常,外电源不能使用
C. 插头接触正常,外电源没有被使用
D. 以上答案都不对
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