更多"[单选题]Freezing Point Depressant (FPD"的相关试题:
[单选题]Freezing Point Depressant (FPD) fluid residue on engine fan or compressor blades
A.can increase performance and cause stalls or surges.
B.could cause FDP vapors to enter the aircraft but would have no
affect on engine thrust or power.
C.can reduce engine performance and cause surging and/or compressor stalls
[单选题]在FPD的火焰中,烃类和硫磷是( )。
A.都在火焰下部中心发光;
B.都在火焰上部外圈发光;
C.烃类在火焰底部发光,硫磷在火焰上部发光;
D.烃类在火焰上部发光,硫磷在火焰底部发光;
[判断题]色谱上同一个FPD可以同时检测硫和磷两种元素。
A.正确
B.错误
[单选题]FPD测定硫的“线性”响应区间大约为( )。
A.106-107;
B.104-105;
C.102-103;
D.101-102;
[单选题]通常,FPD测定硫的检测下限在( )g/s左右
A.10-14
B.10-12
C.10-10
D.10-8
[判断题]FPD测定磷的时候,线性范围大约为10的3次方左右。
A.正确
B.错误
[单选题]Snow on top of deicing or anti-icing fluids
A.need not be considered as adhering to the aircraft
B.must be considered as adhering to the aircraft.
C.must be considered as adhering to the aircraft, but a safe takeoff can be made as it will blow off.
[判断题]FPD对硫和磷两种元素都是线性响应。
A.正确
B.错误
[判断题]284.关闭 FPD时, 应首先关闭 H2流量。
A.正确
B.错误
[多选题]色谱仪FPD检测器可以检测的元素有( )。
A.钾;
B.钠;
C.硫;
D.磷;
[单选题]有关 PPTP( Point-to-Point Tunnel Protocol) 说法正确的是( )。( )
A.PPTP是Netscape 提出的
B.微软从NT3.5 以后对 PPTP开始支持
C.PPTP可用在微软的路由和远程访问服务上
D.它是传输层上的协议
[判断题]有机硫化物的选择性检测器是FPD,而有机化合物的选择性检测器是FID.
A.正确
B.错误
[判断题]FPD同FID一样,需要氮、氢气和空气,三者的合适比例为1:1:10.
A.正确
B.错误