海船船员考试

单选题“The engine not obtaining the sufficient speed for firing” means that （）.A the start failsB the fuel pumps will be put into operationC the fuel valves are damagedD the combustion process will take over

题目
单选题
“The engine not obtaining the sufficient speed for firing” means that （）.
A

the start fails

B

the fuel pumps will be put into operation

C

the fuel valves are damaged

D

the combustion process will take over

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相似问题和答案

第1题：

A governor automatically controls engine speed by regulating ___ .

A.fuel supply

B.firing order

C.engine load

D.oil level


正确答案：A

第2题：

单选题
Load control on a diesel engine is accomplished by （）.
A

regulating the speed of the turbocharger

B

rotating the fuel injector pump plunger

C

regulating the speed of the fuel oil transfer pump

D

changing engine timing


正确答案： C
解析： 暂无解析

第3题：

My ship’s engine responds well to telegraph orders and takes about 80 seconds to reverse from full speed ahead to full speed astern. This sentence ______.

A.indicates the engine’s particulars

B.tells the engine’s function

C.shows the engine’s type

D.refers to the engine’s information


正确答案：A
我船主机车钟响应很好并且自全速进车到全速倒车反转主机大约为80秒。这个句子显示了主机的特点。

第4题：

单选题
A diesel engine which is rated for normal operation at a crankshaft speed of 800 RPM, is commonly classed as a （）.
A

slow-speed diesel

B

medium-speed diesel

C

high-speed diesel

D

constant-speed diesel


正确答案： C
解析： 暂无解析

第5题：

单选题
If a diesel engine starts firing, but is unable to come up normal speed, either without load or even under a small load, the cause may be （）
A

insufficient fuel supply

B

faulty governor

C

high exhaust back pressure

D

all of the above may cause this problem


正确答案： A
解析： 暂无解析

第6题：

单选题
To shut down a diesel engine after it exceeds the set maximum speed，which type of device listed should be used?（）
A

Speed limiting governor

B

Over-speed governor

C

Over-speed trip

D

Over-speed relay


正确答案： D
解析： 暂无解析

第7题：

单选题
If keep the fuel injection of main engine unchanged when ship is fouled, that will causeⅠ.The speed of main engine to be reduced Ⅱ.Ship speed to be reduced Ⅲ.The resistance torque of propeller to be increased Ⅳ.Trim at stern to increase（）
A

Ⅰ + Ⅱ

B

Ⅰ ~ Ⅲ

C

Ⅰ ~ Ⅳ

D

Ⅰ + Ⅱ + Ⅳ


正确答案： B
解析： 暂无解析

第8题：

In reducing engine speed to an efficient propeller speed by the use of reduction gears, _______.

A.speed and torque are both reduced

B.speed is reduced and torque remains unchanged

C.speed is reduced and torque is increased

D.speed is sometimes unchanged while torque is increased


正确答案：C

第9题：

单选题
An over-speed trip serves to （）
A

stop the engine by cutting off the cooling water supply

B

stop the engine by closing the air intake

C

slow the engine but not stop it

D

slow the engine to half of normal load


正确答案： A
解析： 暂无解析

第10题：

单选题
（） can be found on most medium to large merchant vessels even if the main engine is either a steam turbine or 2-stroke crosshead engine.
A

The medium speed 4-stroke trunk piston engine

B

The low speed 2-stroke crosshead engine

C

The medium speed 2-stroke crosshead engine

D

The low speed 4-stroke trunk piston engine


正确答案： A
解析： 暂无解析

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