网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
单选题
Metal particles accumulated from the wearing of components in a diesel engine can result from lube oil that has been contaminated with（）.
A
abrasive particles
B
metallic oxides
C
corrosive acids
D
any or all of the above
参考答案
参考解析
解析：
暂无解析
更多 “单选题Metal particles accumulated from the wearing of components in a diesel engine can result from lube oil that has been contaminated with（）.A abrasive particlesB metallic oxidesC corrosive acidsD any or all of the above” 相关考题
考题
单选题A vessel’s quarter is that section which is（）.A
abeamB
dead asternC
just aft of the bowD
on either side of the stern
考题
单选题The output voltage of a three-phase alternator is regulated by the （）.A
AC voltage to the armatureB
AC voltage to the fieldC
DC voltage to the armatureD
DC voltage to the field
考题
单选题Oil pressure in the lubrication system is （） the static sea water head to ensure that sea water （） the stem-tube.A
lower than；can lubricateB
lower than；can coolC
higher than；can enterD
higher than ；cannot enter
考题
单选题如果海岸电台利用NBDP技术呼叫船舶电台，则海岸电台操作员应首先了解（）信息。A
只需要了解被叫船舶船位B
只需要了解被叫船舶识别码和被叫船舶可能值守的频率C
只需要了解被叫船舶可能可能值守的频率D
需要了解被叫船舶船位、船舶识别码和被叫船舶可能值守的频率等
考题
单选题The holding power of an anchor at a given scope of cable increases when the（）.A
amount of chain lying along the bottom increasesB
length of the catenary is reducedC
mooring line tension is increasedD
amount of chain lying along the bottom decreases
考题
单选题On a ship，when may a work vest be substituted for a required life preserver?（）A
To replace a damaged life preserverB
For use during fire drillsC
For use during boat drillsD
At no time
考题
单选题Most anchor handling equipment incorporates （） for mooring purposes.A
cable liftersB
spur wheelsC
bollardD
warpends
考题
单选题我国海商法规定，如果航次租船合同中订有承租人选择卸货港条款的，在承租人未按照合同约定及时通知确定的卸货港时，船长可以（）。A
从约定的选卸港中自行选定一港卸货B
根据货主的指示选定卸货港C
质询承租人，并根据其指示选定卸货港D
任选一安全港口进行卸货
考题
单选题A fire in a pile of canvas would be classified as a （）.A
class AB
class BC
class CD
class D
考题
单选题关于船舶空调的以下各项中合适的是（）。A
室内空气流速≯0.15m/sB
室内中间空间各处温差≯3～5℃C
新鲜空气供给量每人≮2.4m3/hD
冬季室内湿度可控制为30%～40%
考题
单选题请问下列关于气阀定时说法中，正确的是（）。A
四冲程柴油机排气阀在膨胀行程的上止点前打开B
四冲程柴油机排气阀在排气行程的上止点前关闭C
四冲程柴油机排气阀在膨胀行程的下止点前打开D
四冲程柴油机排气阀在排气行程的上止点关闭
考题
单选题在船舶保险中除合同另有规定外，在何种情况下保险人不负责赔偿责任？（）A
修理人员的疏忽或过失B
发生部分损失后未经修复又发生全部损失C
船舶连续发生数次保险事故已超过保险金额D
船舶发生的自然磨损或锈蚀
考题
单选题离心泵叶轮一般采用（）叶片。A
前弯B
后弯C
径向D
三种都有
热门标签
最新试卷
