单项选择题If found oil when we open low oil level plug of separator, it indicates ()

A.the separator is overload
B.the monitor equipment of separator fails
C.the discharge pump of separator can not work
D.the temperature of oil water is low


您可能感兴趣的试卷

你可能感兴趣的试题

1.单项选择题After stopping oily water separator, sea water should be permitted for () minutes,()should be closed after stopping pump to reduce oxidation corrosion of inner wall.

A.15;inlet value
B.15;inlet and outlet value
C.30;inlet value
D.30;inlet and outlet value

2.单项选择题Before the oily water separator put into operation, it should be ()

A.filled with bilge water
B.filled with oil
C.filled with clean water
D.be emptied

3.单项选择题The time of discharging oil is short, but oily water separator discharges oil frequentlyThe possible reason is ()

A.the sensor of low oil level is fully covered by sludge
B.the coarse strainer before the pump in suction system is clogged
C.the screw pump is worn seriously and volumetric efficiency is decreased
D.bilge suction value is clogged

4.单项选择题The pressure difference of the gauge on the oily water separator increases greatly, the reason is()

A.the filter is clogged
B.bilge suction value is clogged
C.suction value and discharge value of the pump do not open fully
D.screw pump is worn seriously and volumetric efficiency is decreased

5.单项选择题Oily water separator mis-alarms, the most possible reason is ()

A.separating oil too fast
B.the sensor flushed badly
C.the discharge solenoid value out of order
D.too low heating temperature

6.单项选择题Because the flow rate of supply water pump is too large, oily water separator does not work wellWhich of the following is not the reason?()

A.the monitoring equipment is out of order
B.separating effect becomes bad
C.inner wall is contaminated
D.separating effect becomes bad and inner wall is contaminated

8.单项选择题The air-conditioner is running in the winter and to be stopped, we should()

A.close Fan and Humidifier at the same time
B.firstly close Fan and then close humidifier immediately
C.firstly close humidifier and then close Fan immediately
D.firstly close humidifier and then close Fan after 30 seconds