单选题 5.4.2 I S P S规则简介 An International Ship Security Certificate shall be issued for a period specified by the Administration which shall not exceed ().

A、 six months
B、 two years
C、 four years
D、 five years
下载APP答题
由4l***nf提供 分享 举报 纠错

相关试题

单选题 Of all types of commercial internal combustion engines now built, which one usually gives the best performance, and hence is quite commonly used in marine applications, especially in larger sizes?

A、Steam engine
B、Gasoline engine
C、Gas turbine
D、Diesel engine

单选题 Engine speeds at which resonance(共振) can occur are termed ______.

A、maximum speeds
B、full speeds
C、sea speeds
D、critical speeds

单选题 Which of the listed conditions will affect the mean effective pressure mostly in the cylinders of a diesel engine?

A、TBN of the lubricating oil.
B、Temperature of the lube oil.
C、Completeness in the mixing of the fuel and air.
D、Temperature of the sea water.

单选题 The exhaust system for a turbocharged diesel engine functions to ______ .

A、power the after-coolers
B、power the turbocharger
C、reduce the cylinder scavenge effect
D、cool the turbocharger

单选题 Lubricating oil systems for diesel engine journal bearings are usually lubricated by which of the following types of lubricating oil systems?

A、Splash
B、Gravity
C、Pressure
D、Bypass

单选题 When separating lube oil with a purifier, the optimal separating quantity is ______of the rated quantity on nameplate.

A、100%
B、1/2
C、1/5
D、1/3

单选题 Oil mist detectors are usually used on board to detect oil mist density within ______ .

A、the engine crankcase
B、the engine scavenge boxes
C、drain tanks
D、fuel tanks

单选题 The diesel engine valve subjected to most severe conditions of service is the ______ .

A、cylinder exhaust valve
B、air starting valve
C、air inlet valve
D、cylinder relief valve