海船船员 - 三管轮 - 查题吧

单选题

Temperature control valves installed in the jacket cooling water system of a diesel engine

A. cooling water pump
B. nozzle cooling passages
C. cylinder jackets
D. heat exchanger

单选题

The interior of some diesel engine saltwater heat exchangers are protected from corrosion

A. aluminum plates
B. lead cathodes
C. copper baffle plates
D. sacrificial zincs

单选题

The best tool to use for removing the carbon ridge at the top of an engine cylinder, prior

A. an electric grinder
B. a metal scraper
C. a reamer
D. a three-wing hone

单选题

Due to excessive water in the fuel, a diesel engine fails to startBefore the engine can be

A. fuel pumps
B. cylinders
C. fuel strainers
D. all of above

单选题

Deficiencies in the categories of Life-saving, Safety in General, Fire-fighting Appliances

A. account as
B. account for
C. account to
D. account of

单选题

To determine that a compartment contains sufficient oxygen to sustain life, you should use

A. explosimeter
B. oxygen indicator
C. fresh air indicator
D. All of the above

单选题

Which of the following equipment can not be used for the waste heat recovery of the M/E to

A. M.E turbocharger
B. exhaust gas boiler
C. incinerator
D. fresh water generator

单选题

下列说法中错误的是________。

A. 开式系统比闭式系统散热好
B. 重载工作时间长的闭式系统应改为半闭式
C. 减压阀不会使流过的液压油发热
D. 装置效率低液压油必然发热多

单选题

Modern engines _____ exhaust gas driven turbo-chargers to supply pressurized fresh air for

A. are made of
B. are made from
C. make use of
D. are used to

单选题

Because the expansion valve is just ______ way open, the refrigerant is under low pressure

A. little
B. few
C. a little
D. a few

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