單項選擇題

When does auxiliary burner of incinerator put into operation? （）
Ⅰ.tart incinerator when it is cold
Ⅱ.he sludge for dealing with is little
Ⅲ.he sludge for dealing with is large
Ⅳ.he water and impurity in sludge are too much
Ⅴ.he temperature in incinerator is low
Ⅵ.ealing with little solid rubbish

A.Ⅰ+Ⅱ+Ⅲ+Ⅴ
B.Ⅰ+Ⅱ+Ⅲ+Ⅳ
C.Ⅰ+Ⅳ+Ⅴ+Ⅵ
D.Ⅰ+Ⅱ+Ⅲ+Ⅵ


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1.單項選擇題Which of the following is wrong about operation of oily water separator?（）

A.filled with clean water before operation
B.keep air cushion in oil collecting space during running
C.check oil level during running
D.clean inner separator with low pressure stream

2.單項選擇題When oily water separator is operating, which measure （） is wrong.

A.pay attention to operating parameters
B.renew and clean separating units in time
C.check oil level in separator to prevent overload
D.check separating effect, if it is bad, flush with large capacity water pump

3.單項選擇題The following measures can be used to improve oily water separator’s separating effect except （）

A.overhauling every two year
B.working at intervals
C.renewing filtration material
D.pumping bilge water from different layers respectively

4.單項選擇題If separating effect is not good, which measure should be taken （）

A.working at intervals and properly heating
B.warming up to 70℃, increase water supply flow
C.improving impulse of water supply
D.reducing water supply flow

5.單項選擇題If separating effect is not good, we can improve it by （）

A.flushing separator with hot water
B.increasing water supply flow
C.heat oily water properly
D.opening manual oil discharge value