违法和不良信息举报 联系客服
免费注册 登录

The high pressure in fuel injection system of the diesel eng

题目
单选题
The high pressure in fuel injection system of the diesel engine is produced by the （）.
A

injector pump

B

fuel injector

C

governor

D

turbocharger

如果没有搜索结果或未解决您的问题，请直接 联系老师 获取答案。
相似问题和答案

第1题：

If fuel injection to a four-stroke/cycle diesel engine begins earlier than designed, ignition may be delayed because the

A.cylinder compression pressure may not be high enough

B.cylinder compression temperature may be too high

C.fuel oil injection pressure may not be high enough

D.scavenge and purge process is incomplete


正确答案：A

第2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3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4题：

单选题
A practical way of checking for excessive fuel injection in one cylinder of an operating diesel engine is to （）
A

feel the high pressure fuel line

B

check the cylinder exhausts for white smoke frequently

C

check the cylinder exhaust temperature

D

isolate each cylinder and inspect the injector


正确答案： A
解析： 暂无解析

第5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6题：

单选题
The consistent burning of fuel oil with a high sulfur content in a diesel engine will result in （）
A

clogged fuel injection pumps

B

increased cylinder liner wear

C

intake valve stem corrosion

D

varnish deposit on pistons


正确答案： C
解析： 暂无解析

第7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8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9题：

单选题
The replacement piping for diesel engine high pressure fuel systems must be the same length and diameter as the original piping to （）.
A

avoid unnecessary pints inventory

B

keep torsional vibration constant

C

use existing supports and braces

D

maintain specified injection characteristics


正确答案： A
解析： 暂无解析

第10题：

单选题
When the opening pressure of a diesel engine fuel injector is greater than that specified by the engine manufacturer, which of the following problems can be expected?（）
A

Quantity of fuel injected tends to be decreased

B

Quantity of fuel injected will always be increased

C

Start of injection tends to be advanced

D

Duration of injection will always greater


正确答案： A
解析： 暂无解析

更多相关问题
相关内容