海船船员考试

单选题Late fuel injection in a diesel engine is indicated by low firing pressure with （）A low exhaust temperatureB low exhaust pressureC mechanical knock in each cylinderD black or gray exhaust smoke

题目
单选题
Late fuel injection in a diesel engine is indicated by low firing pressure with （）
A

low exhaust temperature

B

low exhaust pressure

C

mechanical knock in each cylinder

D

black or gray exhaust smoke

参考答案和解析
正确答案： A
解析： 暂无解析
如果没有搜索结果，请直接 联系老师 获取答案。
相似问题和答案

第1题：

A smoking exhaust from an operating diesel engine could be caused by( ).

A.low sulfur content in the fuel

B.a loose injector inlet connection

C.late fuel injection

D.high injection pressure


正确答案：C
解析：sulfur/sulphur：硫;content：内容，含量
译文：运行中的柴油机冒黑烟，可能的原因是燃油喷射滞后。

第2题：

One cause of diesel engine surging can be a result of ______.

A.injection pump plungers stuck or worn

B.low compression

C.solenoid stuck open

D.fuel tank too full


正确答案：A

第3题：

A diesel engine experiences a sudden loss in speed, accompanied by black exhaust smoke, with the fuel rack at maximum, and speed remaining below normal .the probable ___.

A.engine overload

B.leaky valves

C.stuck or broken piston rings

D.low air injection pressure


正确答案：A

第4题：

单选题
Late fuel injection timing is indicated by （）
A

lower than normal cylinder pressure and low exhaust temperature

B

lower than normal cylinder pressure and high exhaust temperature

C

higher than normal cylinder pressure and low exhaust temperature

D

higher than normal cylinder pressure and high exhaust temperature


正确答案： B
解析： 暂无解析

第5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6题：

In a diesel engine, late fuel injection is indicated by black or gray exhaust smoke with ______.

A.low firing pressure

B.low exhaust temperature

C.mechanical knock in each cylinder

D.fuel knock in each cylinder


正确答案：A

第7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8题：

High firing pressures and low exhaust temperature in a diesel engine may resultfrom( ).

A.decreased piston to cylinder head clearance

B.increased exhaust system back pressure

C.early fuel injection timing

D.low scavenge air temperature


正确答案：C
解析：decrease：减少;clearance：间隙
译文：喷油定时过早会引起柴油机爆炸压力偏高、排温偏低。

第9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

更多相关问题
相关内容