海船船员考试

单选题The tailshaft sealing arrangement found a little lube oil leaky and caused a lot of seawater into the bearing, the step should be taken as a makeshift is（）A dropping lube oil for lubrication, reducing the pollution to the seaB setting a temporary gravi

题目
单选题
The tailshaft sealing arrangement found a little lube oil leaky and caused a lot of seawater into the bearing, the step should be taken as a makeshift is（）
A

dropping lube oil for lubrication, reducing the pollution to the sea

B

setting a temporary gravity oil tank and enhanced the position properly

C

lubricating with the used lube oil

D

lubricating with the fresh water and navigation in a lower speed

参考答案和解析
正确答案： D
解析： 暂无解析
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相似问题和答案

第1题：

Sludge may be formed in the oil in the crankcase of a reciprocating air conditioning compressor as a result of ______.

A.refrigerant bubbles in the lube oil

B.refrigerant reducing the lube oil viscosity

C.oxidation(氧化) of the lube oil from overheating

D.reducing the floc or cloud point of the oil


正确答案：C

第2题：

单选题
Telescopic pipes to the piston of a large slow-speed main propulsion diesel engine are designed to prevent （）.
A

excessive crankcase pressure

B

excessive lube oil temperature

C

contamination of the lube oil by water

D

contamination of the cooling water by lube oil


正确答案： C
解析： 暂无解析

第3题：

The bearing of tailshaft sealing equipment which adopts the oil nature circulation is hot, the reason is

A.the rotate speed fluctuation

B.the ventilation tube clogged

C.the main engine accelerate so fast

D.stormy waves


正确答案：B

第4题：

单选题
Excessive lubricating oil consumption in a running diesel engine can be caused by （）
A

clogged lube oil piping

B

excessive valve-guide clearance

C

high lube oil viscosity

D

low lube oil temperature


正确答案： A
解析： 暂无解析

第5题：

单选题
The lube oil cooler is located after the lube oil filter in order for （）
A

the filter to operate more efficiently

B

the lube oil cooler to be bypassed

C

positive lube oil pump suction to be assured

D

galvanic action in the cooler to be minimized


正确答案： C
解析： 暂无解析

第6题：

单选题
A dirty lube oil strainer can result in（）
A

crankcase

B

low lube oil temperature

C

excessive oil consumption

D

low bearing oil pressure


正确答案： C
解析： 暂无解析

第7题：

单选题
To determine if the lube oil filter elements need changing, （）.
A

open the filter and inspect the elements

B

check the lube oil pump discharge pressure

C

check the lube oil header pressure

D

check the pressure drop across the filter


正确答案： B
解析： 暂无解析

第8题：

Oil oxidation as a result of excessively high lube oil temperature, is harmful to a diesel engine Because

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


正确答案：D

第9题：

单选题
A lube oil filter can be used to remove most contaminants from lube oilA contaminant which will remain in the lube oil after filtering is （）.
A

acid

B

fuel oil

C

sediment

D

water


正确答案： B
解析： 暂无解析

第10题：

单选题
In a bypass type lubrication system for a diesel engine, the dirty oil line to the centrifuge should be taken from the （）.
A

lube oil pump suction line

B

lube oil pump discharge line

C

bottom of the lube oil sump

D

outlet from the lube oil header


正确答案： C
解析： 暂无解析

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