正确答案: A
A.650~800
题目:在高增压柴油机上,排气阀阀盘的温度可达()℃。
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学习资料的答案和解析:
[单选题]采用贮备可以提高动力装置的可靠性,但是亦有可能使可靠性反而下降,这是因为()。Ⅰ.散热面积小,使温度大幅度上升;Ⅱ.振动、冲击因素影响备件寿命
Ⅰ,Ⅱ都对
[单选题]废气锅炉窄点越(),排气的压力损失较(),废气流速必须()。
小/大/降低
[单选题]确定轴系理论中心线的方法有()。Ⅰ.拉线法;Ⅱ.平轴法;Ⅲ.指针法;Ⅳ.直尺-塞尺法;Ⅴ.光学仪器法。
Ⅰ+Ⅴ
[单选题]大、中型船舶的轴系各中间轴连接法兰广泛采用()螺栓连接。
圆锥形
[单选题]The hydraulic () is used to control engine speed.
governor
[单选题]When we say that two objects have relative motion, we mean ().
the distance between them is changing
[单选题]If you don’t understand the meaning of the technical terms of the diesel engine, you can () the dictionary of machine technology.
consult
[单选题]Maximum horsepower of a diesel engine is attained ().
at rated engine RPM