A thrust bearing is used with a propulsion diesel engine to ____.
A. control axial movement of the crankshaft
B. transmit engine thrust to the propeller shaft
C. absorb vibrations in the propeller shafting
D. prevent propeller thrust from being transmitted to the hull
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下面哪一个机构向公众吸收存款，同时向公众出售其股份？ ________。 i．货币市场基金 ii．储蓄机构 iii．商业银行
A. 只有i
B. 只有ii
C. 只有iii
D. ii和iii
E. i、ii和iii
Oil oxidation as a result of excessively high lube oil temperature, is harmful to a diesel
A. oil foaming will always occur
B. large quantities of oil are consumed
C. lube oil viscosity is always decreased
D. corrosive by-products are usually formed
In the initial survey,_______compiles the survey report and fills in certificate
A. surveyor
B. chief engineer
C. administrator
D. company superintendent
The upper piston rings m large, slow-speed, two-stroke/cycle diesel engines are most effectively lubricated by oil ____.
A. fed from mechanical lubricators
B. thrown off from the main bearings
C. supplied from wick fed drip lubricators
D. flow from a centrifugal or banjo oiler
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