Cylinder liner cooling is often referred to as （）.

【名词&注释】

适应性(adaptability)、动力装置(power plant)、燃油消耗量(fuel consumption)、喷油泵(fuel injection pump)、螺旋桨推力(propeller thrust)

[单选题]Cylinder liner cooling is often referred to as （）.

A. piston cooling
B. sleeve cooling
C. central cooling
D. jacket cooling

查看答案&解析 查看所有试题

学习资料：

[单选题]动力装置燃料消耗率bz指的是动力装置每小时燃油消耗量与（）之比。

A. 主机指示功率
B. 主机有效功率
C. 螺旋桨吸收功率
D. 螺旋桨推力^{(propeller thrust)}功率

[单选题]产品的维修度是表示产品（）。Ⅰ.对维护、修理的适应性；Ⅱ.对产品进行维修的难易程度

A. 仅Ⅰ对
B. 仅Ⅱ对
C. Ⅰ，Ⅱ都对
D. Ⅰ，Ⅱ都不对

[单选题]废气锅炉出口排烟温度t2不应低于露点，为了最大限度利用排气余热，在标定工况下，t2=露点+△t（℃），式中△t不应小于（）℃.

A. 25
B. 30
C. 40
D. 50

[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]在检查和调整主机回油阀调节式喷油泵的供油量均匀性时，应将主机的燃油手柄置于（）位置。

A. 标定供油位置
B. 停车位置
C. 任意位置
D. 起动主机时的供油位置

[单选题]Exhaust temperature increases in all cylinders, the possible cause may be（）(1) increased scavenging air temperature(2) air in fuel pumps and fuel valves(3) fouling of air and gas passages

A. (1)+(2)
B. (1)+(3)
C. (2)+(3)
D. (1)+(2)+(3)

[单选题]The jacket water temperature in a diesel engine closed freshwater cooling system is normally controlled by （）

A. regulating the level of corrosion inhibitor in the primary cooling system
B. the level of the freshwater expansion tank
C. varying the engine load to meet temperature requirements
D. the operation of the thermostatic valve

[单选题]Which statement about diesel engine combustion is true?（）

A. Combustion does not begin until the piston starts down on the power stroke
B. Maximum combustion pressure is reached before TDC
C. Turbulence in the cylinder causes a delay in ignition
D. Maximum cylinder firing pressure is not developed until the piston passes TDC

本文链接：https://www.51bdks.net/show/4j44zp.html