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【单选题】
下列不属于汽车电气系统特点的是( )A.
低压
B.
直流
C.
单线制
D.
正极搭铁
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皮皮学刷刷变学霸
举一反三
【单选题】The thermostat in an engine cooling system controls
A.
pressurisation of the system.
B.
circulation of coolant to the radiator.
C.
operation of the electric fan.
D.
circulation of coolant to the heater.
【简答题】常见的无源元件有[填空(1)]、[填空(2)]、[填空(3)]、[填空(4)]等
【单选题】If an auxiliary diesel engine coolant temperature is higher than normal, but the thermostat is determined not to be detective, you would suspect a/an_____ .
A.
cavitation erosion in the water jackets
B.
dirty jacket water cooler
C.
excess corrosion inhibitor in the coolant
D.
defective turbocharger
【单选题】If the jacket water temperature in an auxiliary diesel engine cooling system is lower than normal, the probable cause is .
A.
air binding of the engine cooling system
B.
a cracked water cooled exhaust manifold
C.
blockage in the heat exchanger
D.
faulty operation of the thermostat
【简答题】常见的无源元件有 、 、和 ;常见的有源元件是 和 。
【单选题】If an auxiliary diesel engine temperature is higher than normal ,but the thermostat is determined not to be defective you would suspect a /an （）
A.
cavitation erosion in the water jackets
B.
excess corrosion inhibitor in the coolant
C.
dirty jacket water cooler
D.
defective turbocharger
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