海船船员考试
单选题（） clearances in the main or crank pin bearings will sometimes be indicated by loss of pressure in the lubricating system before any bearing knock is heard.A Too largerB Too smallerC ExcessD Excessive
题目
Too larger
Too smaller
Excess
Excessive
相似问题和答案
第1题：
Cold weather starting of a diesel engine is more difficult than warm weather starting due to
A.use of low viscosity oil in cold weather
B.increased moisture content of inlet air in cold weather
C.increased drag of pistons and bearings due to increased oil viscosity
D.higher compression pressures reached due to smaller clearances existing in the engine during cold weather
第2题：
Which of the following would represent a power supply connector that supplies the main power toan ATX motherboard?（）
- A、6-pin PCI connector
- B、24-pin connector
- C、Molex connector
- D、SATA connector
正确答案:B
第3题：
On a medium-speed main propulsion diesel engine, the crank-pin or crank journalbearings receive lubricating oil from( ).
A.a spindle lubricator
B.an oil jet
C.internal splashing
D.drilled passages in the crankshaft
解析：medium：中等，介质;pin：销，刺穿，钉住;journal：轴颈;spindle：芯轴，转轴;lubricator：注油器;splash：飞溅
译文：对于中速主推进柴油机，曲柄销轴承通过曲轴内钻孔的油道供油润滑。
第4题：
port side
starboard side
BDC position
DC position
第5题：
decreased compression pressure
increased lube oil pressure
lower lube oil temperature
excessive leakage past the piston rings
第6题：
A. 6-pin PCI connector
B. 24-pin connector
C. Molex connector
D. SATA connector
第7题：
Prevents lateral movement of the slow speed gear
Transmits propeller thrust to the hull
Keeps spring bearings in line
Prevents main reduction gear axial movement
第8题：
In an engine with a pot-shaped piston, some lubricating oil from the main bearing will pass along a drilled passage in the crankshaft to the bottom end bearing and then up a connection rod to the
A.crosshead
B.crankpin
C.crank journal
D.gudgeon pin
第9题：
The piston rod
The cross head pin
The gudgeon pin
The crank-pin
第10题：
banjo feed
splash feed
gravity feed
pressure feed