As the plunger moves up, the ports are closed and the fuel

【名词&注释】

超声波(ultrasonic)、发电机、排气阀(exhaust valve)、空气冷却器(air cooler)、柴油机连杆(diesel engine connecting rod)、汽轮发电

[单选题]As the plunger moves up, the ports are closed and the fuel （） and delivered to the injector nozzle at very high pressure.

A. being compressed
B. to be pumped up
C. is pressurized
D. are built u

查看答案&解析 查看所有试题

学习资料：

[单选题]超级汽轮发电系统（STG）是废热利用联合装置，其余热利用装置有（）。Ⅰ.废气/蒸汽联合驱动的涡轮发电机；Ⅱ.空气冷却器；Ⅲ.废气锅炉

A. Ⅰ+Ⅲ
B. Ⅰ+Ⅱ
C. Ⅱ+Ⅲ
D. Ⅰ+Ⅱ+Ⅲ

[单选题]吊缸检修柴油机连杆^{(diesel engine connecting rod)}螺栓时一定要（）。

A. 用扭力扳手或液压拉伸器预紧
B. 用普通扳手的力臂套筒不得随意增长
C. 磁力探伤或着色探伤
D. 超声波探伤

[单选题]当曲柄的Δ-＝（＋）值时，该曲柄的两个主轴承位置偏（），曲轴轴线呈（）状态。

A. 右/“）”
B. 右/“（”
C. 左/“）”
D. 左/“（”

[单选题]在高增压柴油机上，排气阀阀盘的温度可达（）℃。

A. A．650～800
B. B．450～600
C. C．500～650
D. D．450～500

[单选题]In a four-stroke engines the camshaft rotates at （）.

A. half the engine rotational speed
B. twice the engine rotational speed
C. the engine rotational speed
D. four times the engine rotational speed

[单选题]The space between cylinder liner and jacket is called （）.

A. the cooling water
B. the circulating water
C. the cooler
D. the cooling water space

[单选题]The maximum pressure developed by a waste heat boiler is determined by the main engine exhaust （）.

A. gas composition
B. gas temperature
C. pressure
D. timing

本文链接：https://www.51bdks.net/show/prxkkx.html