正确答案: D
Ⅰ+Ⅱ+Ⅲ
题目:轴带发电机和柴油发电机相比具有的优点是()。Ⅰ.油耗低;Ⅱ.维护费少;Ⅲ.机舱噪声低
查看原题 查看所有试题
学习资料的答案和解析:
[单选题]并联连接系统按照部件的连接情况可分为备用部件和基本部件,根据使用情况有()。Ⅰ.固定式连接热态(在负荷下)各用方式;Ⅱ.固定式连接冷态(在无负荷下)各用方式;Ⅲ.不固定式(流动式)连接各用方式
Ⅰ+Ⅱ+Ⅲ
[单选题]不允许柴油机排气恶化,防止锅炉烟垢沉积,其措施是()。
A十B
[单选题]The crank-room cover should not be opened until at least () minutes after the engine stops.
15
[单选题]The engine has one or two group of fuel pumps, depending upon ().
the number of cylinders
[单选题]If the temperature drops low enough, oil will not flow, () just tell us the temperature.
Pour point
[单选题]In the closed cooling system, the water ().
is made to circulate within the system