自考10012轮机英语(二)模拟试题15

试题数量：53道
免费次数：登录后，试做1次
练习次数：178次
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试卷简介

该试卷共包含53道试题，试题类型如下:

单选题

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1、[单选题]In the shafting management ____ should be paid more attentionIif the while metal tailshaft bearing is dripping oilIIif some area become blue during the runningIIIthe deformation of crankshaft.
- A.I
- B. II
- C. III
- D. II+III
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2、[单选题]In the management of the shafting, because____ carry heavy load and caused high temperature easily, it should be paid attention.
- A.the bearing near to the diesel engine
- B. the intermediate bearing near to the thrust bearing
- C. the intermediate bearing near to the sterntube
- D. the bearing located at the middle of the diesel engine and the sterntube
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3、[单选题]The humidifier’ s valve of air-conditioner should be ____, when the temperature is5~8° C in the winter.
- A.decreased
- B. increased
- C. fixed
- D. closed
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4、[单选题]The humidifier’ s valve of air-condition should be ____, when the temperature is lower than 0° C.
- A.decreased
- B. increased
- C. fixed
- D. closed
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5、[单选题]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
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6、[单选题]When starting air-conditioner in the winter, we should open____ in sequenceIvalve of warming IIvalve of humidifier IIIFan
- A.III . II . I
- B. III . I . II
- C. I. III . II
- D. II . III . I
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7、[单选题]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
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8、[单选题]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
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9、[单选题]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
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10、[单选题]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
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11、[单选题]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
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12、[单选题]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
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13、[单选题]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
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14、[单选题]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
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