【单选题】
冲击强度是度量聚丙烯在高速冲击状态下的___或对断裂的抵抗能力的指标。
A. 韧性
B. 硬度
C. 拉伸强度
D. 拉伸屈服强度
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相关试题
【单选题】
D202液位应控制在___。
A. 80％
B. 70％
C. 50％
D. 42％
【单选题】
催化剂效能的重要指标是___。
A. 活性
B. 可比性
C. 寿命
D. 堆密度
【单选题】
预聚合反应器的作用是___。
A. 防止催化剂破裂
B. 方便催化剂加入
C. 提高产品等规度
D. 利于反应撤热。
【单选题】
P201功率随___升高而升高。
A. FIC20003
B. DIC20401
C. AIC20001
D. TIC20401
【单选题】
环管夹套水加入钝化剂的目的是___。
A. 提高换热效果
B. 防止系统腐蚀
C. 防止夹套水泵气蚀
D. 改善水的流动性能
【单选题】
P201泵冲洗丙烯流量为：___。
A. 600Kg/H
B. 800Kg/H
C. 700Kg/H
【单选题】
下列选项中，能够引起环管反应器轴流泵安全罐密封液位升高___。
A. 环管反应器轴流泵主密封泄漏
B. 环管反应器轴流泵安全密封泄漏
C. 环管反应器压力升高
D. 对大轴流泵活塞冲油
【单选题】
下列不是I202动作结果的是___。
A. 关闭FV20004
B. 打开HV20203B
C. 关闭HV20203A
D. 停M201
【单选题】
下列不是I205动作结果的是___。
A. I201动作
B. I203动作
C. 关闭HV20409
D. 关闭FV20003
【单选题】
下列是P201停所引起的联锁的是___。
A. I202
B. I204
C. I205
D. I209
【单选题】
D303罐压力正常控制在___Mpa。
A. 0.3
B. 0.4
C. 0.5
D. 0.8
【单选题】
套管式换热器主要传热方式为___。
A. 对流和传导
B. 传导和辐射
C. 辐射
D. 辐射和对流
【单选题】
P301泵出口压力应控制在___Bar。
A. 40－42
B. 42－44
C. 34－36
D. 48-50
【单选题】
预混合罐准备向预聚合反应器进料，下列操作正确的是___。
A. 先打开预混合罐阀门。然后打开同在线混合器相连手阀
B. 先打开同在线混合器相连手阀预混合罐阀门，然后打开预混合罐处阀门
C. 没有先后顺序
D. 可同时打开
【单选题】
聚合系统开车前气密压力升到___。
A. 1.0MPa
B. 2.0MPa
C. 3.0Mpa
D. 正常生产时的工作压力
【单选题】
R201夹套水补水由___提供。
A. 循环水
B. 工业水
C. 脱盐水
D. 冷冻水
【单选题】
D301料位LI30002引起I301联锁的料位设定值为___。
【单选题】
C302洗涤介质为白油，当其中三乙基铝含量达到___时需要更换。
A. 5%～8%
B. 8%～10%
C. 10%～15%
D. 15%～20%
【单选题】
建立中循环时，最初需打通___流程。
A. P301→D301
B. P301→R201
C. P301→R200
D. P301→S203
【单选题】
环管出料在进D301时是___。
A. 气、液、固三相
B. 气、固二相
C. 液、固二相
D. 气、液二相
【单选题】
循环气过滤器SR301反吹气的压力为___。
A. 0.2～0.3Mpa
B. 0.3～0.4Mpa
C. 0.4～0.5Mpa
D. 0.6～0.7Mpa
【单选题】
D301使用的是___料位计。
A. 差压式
B. 射线料位计
C. 超声波料位计
【单选题】
D301为切线进料，进料方向与M301转向___，以利于气固分离。
【单选题】
聚丙烯装置丙烯闪蒸罐的料位是用___测量。
A. 钴60
B. 铯137
C. 铱
D. 铀235
【单选题】
闪蒸管线采用___加热。
A. 热水套管
B. 电
C. 蒸汽套管
D. 不需要
【单选题】
SR301在拆卸前需注入___，以使残存的三乙基铝灭活。
A. 2％CO
B. 10％CO
C. CO2
D. 2％和10％CO
【单选题】
E302的加热介质为低压蒸汽，通过调节___，改变丙烯的蒸发量得到所要求的压力。
A. PV30301
B. FV30301
C. PV30308
D. PV30306
【单选题】
D302的正常操作压力为___Mpag。
A. 1.8
B. 2.0
C. 2.2
D. 3.4
【单选题】
PA301前两个桶式过滤器目的是___。
A. 进一步过滤气体中所夹带的带TEAL的油滴
B. 起缓冲作用
C. 没什么作用
D. 给气体降压
【单选题】
正常时D302液位应控制在___。
A. 30％
B. 65％
C. 80％
D. 70％
【单选题】
PA301出口压力是___。
A. 1.5MPa
B. 1.6MPa
C. 2.0MPa左右
D. 0.8MPa
【单选题】
C302换油是通过___向D607输送的。
A. P304
B. P303
C. P302
D. P105B
【单选题】
E305的CW是通过它的___。
A. 管程
B. 壳程
C. 封头
D. 管程和壳程
【单选题】
P302泵出口压力应控制在___Bar。
A. 23－24
B. 26－30
C. 26－28
D. 28-30
【单选题】
当需要生产抗冲共聚物是，D301出料至R401转向阀是___。
A. HV30001
B. HV30101
C. HV30002
【单选题】
C302中油与ATMER163比例为___。
A. 2：1
B. 3：1
C. 5：1
D. 4：1
【单选题】
正常生产为SR301提供反吹气源的设备为___。
A. D302
B. D301
C. SR302
D. D303
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Figures showed customer complaints had ___ to record levels and profits were falling.
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Thanks for the advice, but this is something I have to ___ out myself.
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