海船船员考试
单选题If the feed pump for an auxiliary boiler fails to deliver the feed water to the boiler, the cause maybe （）.A high steam pressure in the boilerB abnormally high feed water temperatureC abnormally high boiler water temperatureD steam demand exceeding fee
题目
high steam pressure in the boiler
abnormally high feed water temperature
abnormally high boiler water temperature
steam demand exceeding feed pump capacity
相似问题和答案
第1题：
辅助给水系统/应急给水系统 auxiliary feed water system/emergency feed water system
正确答案: 在蒸汽发生器主给水系统失效时，立即向蒸汽发生器供水的系统。也可作为反应堆启动、停堆时在主给水未投入的情况下向蒸汽发生器供水。
第2题：
in the event of a flame failure
in the event of a stack fire
when the water level reach the crown sheet
when the feed pump discharge pressure drops to a preset minimum
第3题：
A.salinity is abnormally
B.high steam demand is too
C.feed-water flow is low
D.water level is abnormally low
第4题：
feed pump suction line
hot well
shell of the feed heater
feed lines to the boiler
第5题：
relight the boiler immediately to prevent loss of steam pressure
relight the fire off the brickwork as the bricks are cherry red
purge the furnace of any combustible gases before attempting to relight the fire
speed up the feed pump to prevent dry firing when the burner flame is reestablished
第6题：
concentrations of calcium sulfate in the boiler water
fuel oil in the feed water
improper treatment of the feed water with calcium sulfate
excessive feed water alkalinity
第7题：
turbine
screw
vane
ejector
第8题：
If the feed pump for an auxiliary boiler fails to deliver the feed water to the boiler, the cause may be ______.
A.high steam pressure in the boiler
B.abnormally high feed-water temperature
C.abnormally high boiler water temperature
D.steam demand exceeding feed pump capacity
第9题：
fuel pump failure
fan motor failure
increased feedwater consumption
decreased boiler efficiency
第10题：
sulfite or hydrazine
sulfite or hygroscopic sulfite
bromide or hydrazine
bromide or hygroscopic sulfite