题目内容

The passive safety system consists of ()

A. Passive waste heat removal system
B. Passive core cooling system
C. Passive safety injection system
D. Passive containment sprinkler system
Emergency residence system for passive main control room
F. Passive containment hydrogen control system
G. Passive containment PH control system
H. Automatic pressure reduction system

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How long is the accident non-intervention time of passive safety technology？

A. 30 hours
B. 12 hours
C. 24 hours
D. 72 hours

稳态流动是指流体流动过程中，各项参数______ 时间变化的流动；稳定流动是指当系统受到一个微小的扰动后，不至于偏离原来的状态，系统可以回复到初始的稳定状态

The coolant flow through the core is generally greater than the coolant flow provided by the main pump, which is due to the existence of ()

A. Recirculation pump
B. Condensate pump
C. Steam turbine
D. Feedwater heater

One main difference between pressurized water reactor and boiling water reactor nuclear power plant is that there is no ()

A. Steam generator
B. Reactor core
Containment
D. Moderator