【名词&注释】
活塞杆(piston rod)、十字头(crosshead)、二冲程(two-stroke)、柴油机活塞(diesel engine piston)
[单选题]If diesel oil in this tank is used, the () of the oil must not exceed 120 degree F.
A. viscosity
B. flash point
C. acid value
D. temperature
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学习资料:
[单选题]二冲程十字头式柴油机活塞(diesel engine piston)运动部件的平台检验主要是检查()零件间的相互位置关系。
A. 活塞和活塞杆
B. 十字头、滑块和连杆
C. 活塞运动部件
D. 机座固定件
[单选题]Cooling the intake air supplied to a diesel engine will ().
A. reduce mean effective pressure
B. decrease average compression pressure
C. decrease air charge density
D. increase power output
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