轮机部三管轮考试模拟题10(轮机英语)
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Bearing knocks are likely to occur from _____.
- A.less clearance
- B.dirty lube oil
- C.overload
- D.bearing wear
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In a three-phase circuit, the phase voltages are _____.
- A.120°apart
- B.160°apart
- C.180°apart
- D.360°apart
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Which of the following will take place if the clearance of the main bearings are excessive?
- A.bearing knocks
- B.dropping of pressure of LO
- C.noises
- D.all the above
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The minimum fuel oil delivery pressure required for diesel engine injection depends primarily on the_________.
- A.degree of cylinder air turbulence
- B.firing pressure in the engine
- C.quality of fuel to be injected
- D.duration of the ignition delay period
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_____ or air venting arrangement is fitted to the fuel supply passage.
- A.An air pump
- B.A compressor
- C.A fuel pump
- D.A priming
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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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In a series circuit, which value will remain unchanged at all places in the circuit?
- A.Voltage
- B.Current
- C.Resistance
- D.Inductance
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The SMS should provide for _____ ensuring that the Companys organization can respond at any time to hazards, accidents and emergency situation involving its ships.
- A.programs
- B.progress
- C.members
- D.measures
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Any carbon built up on surfaces must be washed away by _____ additives and held in suspension by a _____ additive.
- A.dispersant/detergent
- B.detergent/dispersant
- C.dispersant/dispersant
- D.detergent/detergent
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Most large, low-speed, main propulsion diesel engines use duplex lube oil strainer to _____.
- A.decrease the time required between cleanings
- B.removes all large and small foreign objects
- C.ensure a positive flow of oil at all times
- D.ensure that all lube oil has been treated twice
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