單項選擇題

When finish work on the oil separator, you should（）firstly.

A.cut off the power
B.cut off the oil inlet
C.open guide water valve
D.close oil outlet value

你可能感興趣的試題

單項選擇題
When separating the lube oil without additive, it is usually cleaned with hot water; the aim is to remove （） from it.
A.acid
B.sludge
C.mechanical impurity
D.salinity
單項選擇題
The separating effect of oil separator is not very good, the reason may be（）
A.too little seal water
B.improper gravity disc
C.oil discharging pump not working very well
D.low water level of the working water
單項選擇題
When separating fuel oil in oil separator, the separating quantity is（） of the real quantity.
A.100%
B.80%
C.1/2
D.1/3
單項選擇題
When separating lube oil separator, the optimal separating quantity is（）of the rated quantity on name plate.
A.100%
B.1/2
C.1/5
D.1/3
單項選擇題
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）
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
單項選擇題
When two oil separators are working in series, they should work with （）
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
單項選擇題
Concerning the management of sewage treatment plant using activated sludge, which of the following is correct?（）
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
單項選擇題
Disinfector in the sewage biological treatment plant usually is （）
A.chlorine water
B.ozone
C.hypo-calcium chloride
D.calcium oxide
單項選擇題
Before marine sewage treatment plant works （） should be filled with fresh water.
A.deposition chamber
B.oxidation pool
C.disinfection chamber
D.all chamber
單項選擇題
When does auxiliary burner of rotary nozzle incinerator begin to work? （）
Ⅰ.hen igniting
Ⅱ.he sludge for dealing with is too much
Ⅲ.efore stopping incinerator
A.Ⅰ+Ⅱ
B.Ⅰ+Ⅲ
C.Ⅱ+Ⅲ
D.Ⅰ+Ⅱ+Ⅲ

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When finish work on the oil separator, you should（）firstly.

你可能感興趣的試題

When separating the lube oil without additive, it is usually cleaned with hot water; the aim is to remove （） from it.

The separating effect of oil separator is not very good, the reason may be（）

When separating fuel oil in oil separator, the separating quantity is（） of the real quantity.

When separating lube oil separator, the optimal separating quantity is（）of the rated quantity on name plate.

One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）

When two oil separators are working in series, they should work with （）

Concerning the management of sewage treatment plant using activated sludge, which of the following is correct?（）

Disinfector in the sewage biological treatment plant usually is （）

Before marine sewage treatment plant works （） should be filled with fresh water.

When does auxiliary burner of rotary nozzle incinerator begin to work? （）
Ⅰ.hen igniting
Ⅱ.he sludge for dealing with is too much
Ⅲ.efore stopping incinerator

When finish work on the oil separator, you should（）firstly.

你可能感興趣的試題

When separating the lube oil without additive, it is usually cleaned with hot water; the aim is to remove （） from it.

The separating effect of oil separator is not very good, the reason may be（）

When separating fuel oil in oil separator, the separating quantity is（） of the real quantity.

When separating lube oil separator, the optimal separating quantity is（）of the rated quantity on name plate.

One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）

When two oil separators are working in series, they should work with （）

Concerning the management of sewage treatment plant using activated sludge, which of the following is correct?（）

Disinfector in the sewage biological treatment plant usually is （）

Before marine sewage treatment plant works （） should be filled with fresh water.

When does auxiliary burner of rotary nozzle incinerator begin to work? （） Ⅰ.hen igniting Ⅱ.he sludge for dealing with is too much Ⅲ.efore stopping incinerator

When does auxiliary burner of rotary nozzle incinerator begin to work? （）
Ⅰ.hen igniting
Ⅱ.he sludge for dealing with is too much
Ⅲ.efore stopping incinerator