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单项选择题
A.100%
B.1/2
C.1/5
D.1/3
单项选择题
A.seal water supply be cut off
B.make up water supply be cut off
C.oil outlet valve closed or not open sufficiently
D.the flow rate of oily water is too much
单项选择题
A.both as clarifiers
B.first one as clarifiers, second one as purifier
C.both as purifiers
D.first one as purifier, second one as clarifier
单项选择题
A.the plant should be prohibited to supplying air
B.the plant should work at intervals
C.the plant should be added disinfector in time
D.we should check strength of activated sludge, ivory-white color is best
单项选择题
A.chlorine water
B.ozone
C.hypo-calcium chloride
D.calcium oxide
单项选择题
A.deposition chamber
B.oxidation pool
C.disinfection chamber
D.all chamber
单项选择题
A.Ⅰ+Ⅱ
B.Ⅰ+Ⅲ
C.Ⅱ+Ⅲ
D.Ⅰ+Ⅱ+Ⅲ
单项选择题
A.After stopping supplying sludge oil, the value and pipe should be flushed by flushed by diesel oil and the incinerator continue burning for 10 minutes
B.Close auxiliary burner firstly and then close main burner
C.After stopping fuel, restoring the position of main fuel supply valve
D.Stop blower as soon as stopping supplying fuel oil
单项选择题
A.Scavenging time should be more 30 seconds before igniting
B.The temperature of sludge tank is 80~100℃
C.First igniting the incinerator with diesel oil, when the temperature of health is about 600℃, the sludge oil drawn in
D.The ash can be dumped into sea when the distance is more than 3 miles from land
单项选择题
A.Ⅰ+Ⅱ+Ⅲ+Ⅴ
B.Ⅰ+Ⅱ+Ⅲ+Ⅳ
C.Ⅰ+Ⅳ+Ⅴ+Ⅵ
D.Ⅰ+Ⅱ+Ⅲ+Ⅵ
