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If keep the fuel injection of main engine unchanged when shi

题目
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

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相似问题和答案

第1题：

单选题
When a ship is entering to shallow water, ship resistance will be increased and the speed of main engine reduced.Due to the function of the governor, the main engine will（）
A

reduce fuel feeding

B

increase fuel feeding

C

keep original fuel feeding

D

be overspeed


正确答案： B
解析： 暂无解析

第2题：

单选题
The burning of fuel oil in a diesel engine having a high sodium content, will cause （）
A

corrosion and grooving of exhaust valves

B

corrosion and gumming of the fuel injection pump

C

salt deposits in the exhaust manifold

D

slag deposits in the fuel injection equipment


正确答案： A
解析： 暂无解析

第3题：

Re-circulating the fuel when the engine is stopped can______.①keep the fuel at the correct viscosity ②cool the injector

A.①

B.②

C.①②

D.neither ① nor ②


正确答案：C

第4题：

单选题
If a single cylinder relief valve on a main propulsion diesel engine begins to lift, but it is not possible to secure the engine, which of the following actions should be taken?（）
A

Increase the cooling water flow to the engine

B

Secure or reduce fuel to that cylinder

C

Screw down on the pressure adjusting spring to decrease to decrease popping pressure

D

Readjust the injection timing


正确答案： A
解析： 暂无解析

第5题：

单选题
While a ship with twin screw is making a turn, in order to prevent overload, the duty engineer should （）
A

reduce the fuel feeding of main engine of inner propeller

B

reduce the fuel feeding of main engine of outer propeller

C

firstly reduce the fuel of main engine of inner propeller, then reduce the fuel feeding of engine of outer propeller

D

reduce fuel feeding of two engines at the same time


正确答案： A
解析： 暂无解析

第6题：

单选题
When the opening pressure of a diesel fuel injector is greater than that specified by the engine manufacturer，the （）
A

quantity of fuel injected is decreased

B

quantity of fuel injected will always be increased

C

start of injection is advanced

D

duration of injection will always be greater


正确答案： C
解析： 暂无解析

第7题：

单选题
Problems with the diesel engine fuel injection pump are usually caused by（）
A

improper adjustment

B

contaminated fuel

C

kinked fuel lines

D

excessive engine vibration


正确答案： C
解析： 暂无解析

第8题：

单选题
The main purpose of changing main engine to electronic controlled is not to（）
A

control fuel injection time more precisely

B

control fuel injection rate more precisely

C

meet the environmental requirements

D

meet high engine speed requirements


正确答案： B
解析： 暂无解析

第9题：

单选题
Fuels of different qualities may require advancing or retarding the injection timing, in addition to which if the injection timing is advanced when the engine is running at loads below the （）, then a saving in fuel can be achieved.
A

BHP

B

MCR

C

IHP

D

MEP


正确答案： C
解析： 暂无解析

第10题：

单选题
The knock occurring when a cold diesel engine is started and continues while running at low speed, but stops when the engine reaches normal operating speed and temperature, is（）.
A

caused by retarded injection timing

B

caused by a mechanical defect in one cylinder

C

caused by high fuel injection pressures

D

normal for these conditions


正确答案： B
解析： 暂无解析

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