a single, long-stroke, slow-speed, turbocharged, two-stroke diesel engine
a single, long-stroke, medium-speed, turbocharged, four-stroke diesel engine
two medium-speed, turbocharged, four-stroke diesel engines
a variable-speed AC generator
第1题:
● Typical characteristics of a work package include:
A Representation of units of work at a level where work is performed
B Clearly distinguishes one work package from all others assigned to a single functional group
C Limits the work to be performed to relatively short periods of time
D All of the above
E A and B only
第2题:
A) formation
B) explosion
C) eruption
D) propulsion
第3题:
Typical characteristics of a work package include:
ARepresentation of units of work at a level where work is performed
BClearly distinguishes one work package from all others assigned to a single functional group
CLimits the work to be performed to relatively short periods of time
DAll of the above
EA and B only
第4题:
A gas-free certificate would usually be issued by a(n) ______.
A.CCS marine surveyor
B.certified marine chemist
C.port engineer
D.MSA marine inspector
第5题:
The closing of the exhaust valves used on a modern, large, low-speed, main propulsion diesel engine may be directly provided by_______.
A.large conical springs
B.compressed air pressure
C.hydraulic pressure
D.exhaust gas pressure
第6题:
A.aeration tanks
B.settling tanks
C.disinfection agent(消毒剂
D.anaerobic bacteria(厌氧菌)
第7题:
The desirable properties of a marine fuel oil should include .
A.high flash point and high viscosity
B.low flash point and high viscosity
C.low heating value and high sulphur content
D.high heating value and low sulphur content
第8题:
115 Typical characteristics of a work package include:
A. Representation of units of work at a level where work is performed
B. Clearly distinguishes one work package from all others assigned to a single functional group C. Limits the work to be performed to relatively short periods of time
D. All of the above
E. A and B only
第9题:
Most marine biological sewage treatment plants consist of all the following statements except ______.
A.aeration(通风) tanks
B.settling tanks
C.disinfection agent(消毒剂)
D.anaerobic bacteria(厌氧菌)
第10题:
A gas-free certificate would usually be issued by a(n) ______.
A.ABS marine surveyor
B.certified marine chemist
C.port engineer
D.Coast Guard marine inspector