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【单选题】

Moisture in a D-Cmotor would cause （）.

A、short circuit

B、speed up

C、slow down

D、hunting

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更多“Moisture in a D-Cmotor would cause （）.”相关的问题
第1题
[] The moisture equilibrium chart can be used to determine the（）.

A、A.Absolute moisture content of the air surrounding a hygroscopic cargo when moisture equilibrium exists  B、B.Dew point temperature that the air surrounding a hygroscopic commodity will have when in moisture equilibrium with that commodity  C、C.Enthalpy of the air surrounding a hydroscopic cargo which is in moisture equilibrium with the cargo  D、D.Temperature at which moisture equilibrium will occur in a cargo hold containing a hygroscopic cargo  

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第2题
[] Cargo damaged due to water being present in a cargo hold，as a result of a leak in the hull plating，is said to be damage by（）. ① Free moisture ② Transfer of hygroscopic moisture Cargo damaged due to water being present in a cargo hold，as a result of a leak in the hull plating，is said to be damage by（）. ① Free moisture ② Transfer of hygroscopic moisture

A、A.① only  B、B.② only  C、C.Both ① and ②  D、D.Neither ① nor ②  

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第3题
[单选题] A hygroscopic cargo is define as a cargo（）.

A、capable of absorbing moisture in the form of a gas  B、capable of giving off moisture in the form of a liquid  C、that is shipped in a liquid stste  D、that will ignite in contact with water  

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第4题
[单选题] Some refrigeration systems have chemical moisture indicators installed in conjunction with the sight glass in the liquid lineIf excess moisture is present in the system, the indicator will （）

A、activate the driers  B、change color  C、secure the compressor  D、add a predetermined amount of liquid drier  

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第5题
[] A tank which has been sealed for a long period of time can be dangerous because （）.

A、A.steel surfaces consume oxygen by rusting  B、B.sealed tanks usually form a vacuum  C、C.moisture condenses in the tank, displacing the oxygen  D、D.most tank coatings give off poisonous vapors in the presence of moisture  

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第6题
[单选题] Water accumulating in the crankcase of a diesel engine could indicate（）

A、a cracked cylinder liner  B、excessive water in the fuel  C、a leaking intercooler  D、excessive moisture in the scavenge air  

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第7题
[单选题] Hot air can hold（）.

A、less moisture than cold air  B、more moisture than cold air  C、the same amount of moisture as cold air  D、moisture independent of air temperature  

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第8题
[] The ratio of the weight of moisture contained in a given volume of air, to the weight of moisture that the same sample would hold if saturated, is called the（）.

A、A.absolute humidity  B、B.relative humidity  C、C.specific humidity  D、D.total humidity  

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第9题
[单选题] The amount of moisture in a given sample of air, when compared with the amount of moisture the air could hold if totally saturated at the existing temperature of the sample, is called （）.

A、absolute humidity  B、specific humidity  C、effective humidity  D、relative humidity  

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第10题
[单选题] Moisture in the refrigerant may （）.

A、freeze on the expansion valve seat and reduce the flow of liquid refrigerant  B、emulsify the oil in the condenser  C、freeze in the king valve  D、clog the oil trap  

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