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【单选题】
PDI检查项目:发动机舱检查主要为动力系统的检查;新能源汽车主要为( )、控制系统检查。车型不同,检查内容不同。A.
发动机
B.
驱动力
C.
电池
D.
电机
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举一反三
【简答题】采集病料时,同一块组织中应包括________和________。
【简答题】阐述明装配电箱的施工程序并提出安装时应注意的问题 。
【单选题】If all other conditions such as bore , stroke speed , and mean effective pressures are equal , a two – stroke /cycle diesel engine will develop approximately---
A.
the same indicated horsepower as a four-stroke/cycle engine
B.
twice the indicated horsepower as a four-stroke/ engine
C.
one half the indicated horsepower as a four-stroke/cycle engine
D.
one power stoke for every two crankshaft revolution
【单选题】If all other conditions such as bore, stroke, speed, and mean effective pressures are equal, a two-stroke/cycle diesel engine will develop approximately（）
A.
the same indicated horsepower as a four-stroke/cycle engine
B.
twice the indicated horsepower as a four-stroke/cycle engine
C.
one half indicated horsepower as a four-stroke/cycle engine
D.
one power stroke for every two crankshaft revolutions
【单选题】If all other conditions such as bore, stroke, speed, and mean effective pressures are equal, a two stroke/cycle diesel engine will develop approximately
A.
the same indicated horsepower as a four-stroke/cycle engine
B.
twice the indicated horsepower as a four-stroke/cycle engine
C.
one half the indicated horsepower as a four-stroke/cycle engine
D.
one power stroke for every two crankshaft revolutions
【简答题】effective horsepower
【单选题】Effective horsepower is the power developed by the____ in the cylinder, but some of this is lost by friction within the engine.
A.
connecting rod
B.
crank
C.
crankshaft
D.
piston
【简答题】如果电容的单位为法拉，电压的单位为（），则电场能量的单位为（）。
【简答题】The diesel engine is a form of internal combustion engine similar to that used in a bus. Its power is expressed as brake horsepower (bhp). This is the power put out by the engine. Effective horsepower...
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