The purpose of the delivery check valve used in a diesel fuel injection jerk pump is to （）.

时间：2020-08-14 00:10:00 关键词：check,delivery,used

The purpose of the delivery check valve used in a diesel fuel injection jerk pump is to （）.

A.assist in a quick cutoff of fuel injection

B.allow oil backflow from the injector to the helix

C.reduce fuel oil pressure between injection strokes

D.meter the quantity of fuel delivered

答案解析

A

举一反三

Fuel oil begins injection into the cylinder of a four-stroke/cycle diesel engine during the （）.

The pump has a constant stroke and the amount of fuel delivered is regulated by rotating （） which has a specially arranged helical groove cut into it.

In an ordinary diesel engine the fuel injection begins （）

Dirt in the fuel oil system of a diesel engine can cause （）.

The purpose of the delivery check valve used in a diesel fuel injection jerk pump is to （）.

考题搜索

最新问题

每支代维队伍钳型电流表最低配置标准为（）。

每支代维队伍笔记本最低配置标准为（）。

每支代维队伍必须配置一台黄马甲。（）

Windows98注册表的操作有（）。

Solaris系统使用什么命令查看已有补丁列表？（）

下列哪种硬件设置通常必须在内置调制解调器上配置（）

Windows7系统对内存的最低配置要求为（）。

TRICON控制器是一种：（）控制器

NPC在销户指令生效前（）个大额支付系统工作日日终后将撤销清算账户置为待销户状态并将账户状态变更通知通过大额支付系统发送各CCPC。

耐久跑中的途中跑要求跑的节奏与（）节奏相配合。