【判断题】
正常情况下，在线混合器管道中的丙烯流量低于联锁值时会导致联锁动作将给电子体，三乙基铝和主催化剂泵的冲程归零
查看试卷，进入试卷练习
微信扫一扫，开始刷题
相关试题
【判断题】
正常生产时三乙基铝流量的控制模式一般是和进料丙烯流量投串级控制
【判断题】
聚丙烯装置在生产聚丙烯产品时如果氢气进料恒定正常，粉料熔融指数上升则说明无规物含量高
【判断题】
聚丙烯装置中的增压油泵在油压低于一定值后需要手动启动泵
【判断题】
环管反应器轴流泵主密封泄漏，若安全密封正常，则安全密封罐液位降低
【判断题】
环管反应器温度提高，聚合反应加速，催化剂收率和聚丙烯转化率均提高
【判断题】
当三乙基铝长时间中断时，主催化剂、给电子体、氢气可以继续进料
【判断题】
主催化剂在环管反应器中停留时间短，不会造成催化剂活性后移
【判断题】
三乙基铝巡检时应注意三乙基铝计量罐现场液位计的下降量，计量泵的冲程，有无跑冒滴漏等现象
【判断题】
事故状态下，可以打开PV20201排放物料
【判断题】
D110A/B/C、D105A/B、D112罐的氮封及鼓泡氮气通过D114油洗后再排入大气
【判断题】
I220、I221联锁是自动启动注CO联锁
【判断题】
三乙基铝系统所采用的伴热方式为蒸汽伴热
【判断题】
I229联锁动作可能是由M201停的原因引发动作
【判断题】
现场H2进料线与乙烯进料线合成一股后进入R401
【判断题】
D304液位高高报能引起I308联锁动作
【判断题】
M301的机械密封撤热的循环水泵是P701A/B
【判断题】
TIC30001的温度是由PIC30001来串级控制的
【判断题】
丙烯进料罐主要接收两股进料、一股来自界区的新鲜丙烯，一股来自P302的回收丙烯
【判断题】
SR301的反吹气是通过减压阀控制的，压力控制到1.9MPA，并由定时器KV30101定时反吹
【判断题】
SR301反吹气的压力是0.5～0.7MPA
【判断题】
300单元的排放阀有HV30001、HV30101、HV30007、HV30401、PV30101
【判断题】
C302的废油是由P304打到D607的
【判断题】
C301的液位和FV30208投串级控制
【判断题】
给R401循环丙烯换热器E401撤热的是循环水
【判断题】
SR301、SR302需要打开处理时，需先注入CO2
【判断题】
R401是以均聚物为活性中心，产品以固态形式存在
【判断题】
P303的作用除了往D607中排废油，还可以通过C302底部蒸汽加热管，用P303打循环，保证C302的正常油温
【判断题】
E302的作用是维持D302的压力，开车前置换和停车倒料时，向丙烯精制系统和聚合系统提供气相丙烯
【判断题】
FIC30301的作用是调节回流量来稳定泵出口压力和流量，还有经E305冷却的丙烯回到D302中，来降低D302的温度
【判断题】
生产高抗冲共聚物时加入Atmer163的作用是使相对较小的聚合物颗粒和TEAL失活，防止聚合物在反应器壁、刮壁器轴上、通风、气体循环管道和热交换器内管中结垢
【判断题】
PA301循环气压缩机为立式往复式活塞压缩机
【判断题】
生产高抗冲共聚物提高温度是为了使Cat活性提高，保证反应进行
【判断题】
R401的压力PIC40003与LIC40001串级控制
【判断题】
聚合物和汽化了的丙烯是以切线方向进入闪蒸罐的
【判断题】
M301的转向与物料进入D301的方向相同
推荐试题
【单选题】
When an aircraft is being subjected to unlawful interference, the pilot should try to notify _______ of this fact.___
A. the appropriate ATC units
B. company
C. the passengers on board
D. air attendants
【单选题】
When pilot say“Did you pick it upon your screen?”,that means______.___
A. did you pick up your screen?
B. did you see it on your screen?
C. did your screen pick me up?
D. did you change your radar?
【单选题】
ATC clearance does not contain______.___
A. clearance limit
B. altitude data
C. route of flight
D. flight direction
【单选题】
When pilot sets an altimeter setting to a QNH,that will indicate_________
A. flight level
B. altitude
C. height
D. safety level
【单选题】
When pilots set a pressure of 29.92 in mercury to indicate_________
A. altitude
B. height
C. flight level
D. safety level
【单选题】
管制员还应当对管制指令当中的不同内容进行适当的排序，相对重要的内容应当排列在管制指令的 （ ）位置___
A. 前面
B. 中间
C. 尾部
D. 以上都可以
【单选题】
When Beijing time is 0801,Zulu time should be______.___
A. 2001
B. 1
C. 601
D. 1601
【单选题】
Emergency frequency is______.___
A. 121.5MHZ
B. 120.5MHZ
C. 121MHZ
D. 119.0MHZ
【单选题】
“PAN” is the international RTF______signal___
A. emergency
B. distress
C. urgency
D. dangerous
【单选题】
“MAYDAY” is the international RTF______signal.___
A. emergency
B. distress
C. urgency
D. dangerous
【单选题】
According to ICAO definition, a condition concerning the safety of an aircraft or other vehicle or of some person on board or within sight but which does not require immediate assistance is _______ .___
A. urgency
B. dangerous
C. emergency
D. distress
【单选题】
Which SSR Code is not right?___
A. 7020
B. 8025
C. 6060
D. 4021
【单选题】
______is the accepted standard for worldwide time signal broadcast used for aviation.___
A. GMT
B. LT
C. UTC
D. SST
【单选题】
_____means the level is measured in 1013.2 pha___
A. Level
B. Height
C. Altitude
D. Flight level
【单选题】
An aircraft known or believed to be in a state of emergency should be given______over other aircraft.___
A. way
B. flight plan
C. instruction
D. priority
【单选题】
管制话筒正确使用方法是：___
A. PTT发射键还没有完全按下时就开始发指令
B. 指令还没有结束就松开PTT发射键
C. 按PTT发射键与发话同时进行，松开PTT发射键与发话同时进行
D. 先按下话筒PTT发射键，然后再开始对空发话，发话完毕后再松开话筒PTT发射键
【单选题】
SSR code is a______digital number.___
A. two
B. six
C. one
D. four
【单选题】
Traffic information should include_________
A. direction of aircraft concerned
B. weather
C. speed of aircraft
D. heading of aircraft
【单选题】
根据区管中心业务通告，管制员通知机组转换频率的管制指令应当与其他管制指令( )。___
【单选题】
20NM is equal to.___
A. 40km
B. 38km
C. 37km
D. 41km
【单选题】
The altimeter setting used in en-route flight should be______hpa___
A. 1019
B. 1013
C. 2992
D. 1000
【单选题】
Larger separations than the specified minima should be applied whenever in.___
A. turbulence
B. bad weather
C. a raining day
D. highlevel
【单选题】
_______is air traffic control service for controlled flights in control areas___
A. Route service
B. En-route fly service
C. Area control service
D. Deviation control service
【单选题】
_______ 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
B. information service
C. rescue service
D. assistance service
【单选题】
Visibility is the ability as determined by atmospheric conditions and expressed in unit______.___
A. meters
B. feet
C. distance
D. odometer
【单选题】
SIGMET is a weather advisory issued concerning weather______to the safety of all aircraft.___
A. significant
B. changeable
C. information
D. condition
【单选题】
Flight level is a______of constant atmospheric pressure which is related to a specific pressure datum 1013.2hpa.___
A. standard
B. surface
C. height
D. number
【单选题】
Air traffic means all aircraft in flight or operating on the______of an aerodrome.___
A. highway
B. hanger
C. maneuvering area
D. terminal
【单选题】
The true airspeed is the airspeed of an aircraft relative to______air.___
A. turbulence
B. smooth
C. undisturbed
D. the
【单选题】
Air speed is the speed of an aircraft relative to its surrounding______.___
A. traffic
B. airmass
C. clouds
D. wind
【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
B. water
C. sea
D. lake
【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
B. 120
C. 100
D. 75
【单选题】
“Advise______”means“ Tell me what you plan to do”.___
A. wanting
B. intentions
C. ideas
D. command
【单选题】
The recommendation is advisory in nature.The decision as to whether the flight can be conducted safely rests solely with the______.___
A. controller
B. manager
C. pilot
D. passengers
【单选题】
“There are broken______along the entire route between niner and one one thousand feet at the present time.”___
A. radial
B. clouds
C. weather
D. way
【单选题】
Th evertical speed in dicator measures______of climb or descent.___
A. time
B. point
C. rate
D. distance
【单选题】
A magnetic compass is the______air navigation instrument.___
A. basic
B. advanced
C. computer
D. improved
【单选题】
In the AFTN,the flight plan filing time shall consist of a______data-time group.___
A. four-digit
B. five-digit
C. six-digit
D. eight-digit
【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.___
A. AIP
B. SIGMT
C. NOTAM
D. AMP
【单选题】
“______”means visibility,cloud and present weather better than prescribed values or conditions.___
A. Weather clear
B. RVRQK
C. CAVOK
D. VisibilityOK
