Cooling makes the engine metals their mechanical properties().
相似题目
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Cavitation erosion in the cooling water system of a diesel engine usually occurs at the pump impeller, and on the waterside of the ()
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Cooling the intake air supplied to a diesel engine will ().
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The pH value of water in a diesel engine closed cooling water system should be maintained between ().
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Which of the following statements is correct for the design and installation of diesel engine cooling water systems?()
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If the cooling water temperature and the lube oil temperature in a diesel engine are too high, the cause can be ()
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The cooling water of the diesel engine should be treated, because it has()
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Fresh water is used for the cooling of cylinder jackets and () of the marine diesel engine.
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Cooling () the engine metals retain their mechanical properties.
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Improper cooling of a diesel engine cylinder liner due to the accumulation of scale deposits may cause ().
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One of the purposes for water cooling the exhaust manifold in marine diesel engine is to ()
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() allows for expansion and water make up in the water cooling system.
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The cylinders, with cooling jackets, are () to the engine frame by eight tie rods.
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The jacket water temperature in a diesel engine closed freshwater cooling system is normally controlled by ()
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In a diesel engine exhaust system, the cooling of the exhaust gases below their dew point, will result in ()
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About half an hour before the engine is required, cooling water at () must be circulated.
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During the running of the diesel engine, if the supply of cooling water is interrupted or the temperature of cooling water out of the cylinder is too high, the duty engineer should ()
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Which of the following problems can cause fluctuating pressures in the closed cooling system of a main propulsion diesel engine?()
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If the coolant temperature of a closed cooling water system for a diesel engine gradually increases, the trouble usually is ()
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Vents are led from the engine to the head tank for the release of () from the cooling water.
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Which of the following conditions will develop if the flow of ‘raw’ cooling water to diesel engine is obstructed?()
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Which of the following statements is correct concerning diesel engine cooling water systems?()
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Cooling of engine is achieved by circulation a cooling liquid around internal passages within the ().
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Some diesel engines are fitted with a thermometer in the cooling water outlet from each cylinderIf the cooling water temperature from all cylinders begins to rise above normal, you should suspect ()
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The purpose of treating the cooling water of the diesel engine is to() Ⅰ. resist the scale formation in the cooling chamber Ⅱ.lubricate the engine part Ⅲ.increase thermal capacity Ⅳ.resist corrosion
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