【单选题】
(B737ng)发动机哪种喷嘴有更大的油流经过___
A. 带银色带的喷嘴
B. 带蓝色带的喷嘴
C. 带黄色带的喷嘴
D. 带黑色带的喷嘴
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答案
A
解析
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相关试题
【单选题】
(B737ng)关于737NG和737-345点火电门的控制说法正确的是___
A. 737-345用P6板的N2转速继电器和P5板的起动电门控制；737NG用DEU控制
B. 737-345用P6板的N2转速继电器和P5板的起动电门控制；737NG用DEU和控制P5板的起动电门控制
C. 737NG用P6板的N2转速继电器和P5板的起动电门控制；737-345用DEU和控制P5板的起动电门控制
D. 没有差异
【单选题】
(B737ng)为什么涡喷发动机需要高能量的点火系统？___
A. 为了在高空和高温条件下点燃油气混合气
B. 因为使用的电压太高
C. 为了在高空和低温条件下点燃油气混合气
D. 因为使用的电压太低
【单选题】
(B737ng)737NG的发动机点火控制和737-345的最大差异是___
A. 没有差异
B. 737NG由EEC参与点火
C. 737NG由DEU参与控制
D. B和C都对
【单选题】
(B737ng)737NG的发动机起动系统和737-345有何差异___
A. EEC参与起动控制
B. 发动机热起动可以自动关车，但不建议等，应及时人工关车
C. 起动过程中有信号送到APU系统
D. 以上都对
【单选题】
(B737ng)737NG的灭熄火保护功能和737-345不同的是___
A. 起动手柄在慢车位，起动电门在FLT位
B. 飞机在空中，起动手柄在慢车位，起动电门在FLT位或GRD位，N2<IDLE
C. 飞机在空中，起动手柄在慢车位，起动电门在FLT位或GRD位，N1<IDLE
D. 以上都是
【单选题】
(B737ng)737NG控制点火电门从GND到OFF位的部件是___
A. P6板下面的N1继电器
B. P6板下面的N2继电器
C. DEU和P5板继电器及电门
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【单选题】
(B737ng)当把起动电门拧到“GND”位___
A. A.点火嘴通电工作
B. B.N2>46.33%时,必须人工将电门扳回到“OFF”位
C. C.只有在提起起动手柄后,点火嘴才通电工作
D. D.只有在提起起动手柄后,起动活门才打开
【单选题】
(B737ng)关于737NG的发动机点火控制说法正确的是：___
A. 直接由点火激励器控制，没有其他控制参与
B. 737NG由EEC参与点火
C. 737NG由DEU参与控制
D. B和C都对
【单选题】
(B737ng)正常情况下波音737NG左侧发动机的点火激励器用什么电源：___
A. AC 转换汇流条1和备用汇流条
B. AC 转换汇流条2和备用汇流条
C. AC 转换汇流条2，1和备用汇流条
D. AC 转换汇流条2，1
【单选题】
(B737ng)正常情况下南航波音737-800发动机的点火激励器是___
A. 将115V 转为1000伏
B. 将115V 转为10000伏
C. 将115V 转为20000伏
D. 将115V 转为2000伏
【单选题】
(B737ng)正常情况下南航波音737-800左侧发动机的点火激励器用的是___
A. AC 转换汇流条1和备用汇流条
B. AC 转换汇流条2和备用汇流条
C. AC 转换汇流条2，1和备用汇流条
D. AC 转换汇流条2，1
【单选题】
(B737ng)737NG发动机有一个TBV（瞬时引气活门）它安装在哪里：___
A. C函道12点钟位置
B. C函道6点钟位置
C. C函道1点钟位置
D. 风扇函道6点钟位置
【单选题】
(B737ng)关于737NG的涡轮间隙控制说法正确的是：___
A. 可以控制高压涡轮，但低压涡轮只有冷却
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D. A&B对
【单选题】
(B737ng)可变放气活门(VBV)的作用是: ___
A. A． 调节低压压气机的进口压力使一部分主涵道气流到次涵道
B. B． 防止发动机喘振使一部分主涵道气流在进入高压压气机前到次涵道
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【单选题】
(B737ng)涡轮间隙控制系统包括：___
A. HPTACC,LPTACC,BSV
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【单选题】
(B737ng)HPTACC的作用是:___
A. 控制HPT叶尖间隙到最大，以提高燃油效率
B. 控制HPT叶尖间隙到最小，以提高燃油效率
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【单选题】
(B737ng)HPTACC的作用是使:___
A. HPC里的气流畅通，防止失速
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【单选题】
(B737ng)飞机处于起飞阶段,高压涡轮间隙控制系统的冷却气流来自___
A. A.HPC5th
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