A、icing of the automatic controls
B、embrittlement of some parts of the automatic controls
C、sludge in the lubricating oil
D、all of the above
更多“Moisture should be kept out of an R-12 system because it tends to cause （）.”相关的问题
A、keep the air from being carried into the engine B、keep the moisture from being condensed C、keep the danger from being carded into the engine D、take away the condensate from the air
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
A、A.sediment contamination B、B.fuel filter clogging C、C.moisture formation D、D.inadequate transfer pump suction head
A、to windward should be opened and the ones to leeward should be closed B、to leeward should be opened and the ones to windward should be closed C、should be opened D、should be closed
A、to windward should be opened and the ones to leeward should be closed B、to leeward should be opened and the ones to windward should be closed C、should be opened D、should be closed
A、Drain the accumulated moisture B、Test the relief valves C、Watch the temperature to prevent fluctuations in pressure D、Clean the interior to remove oil and foreign matter
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