The main engine is cooled with fresh water ()is added suitable small quantities of chemicals to prevent corrosion.
相似题目
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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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Who is in charge of the main engine?()
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Fresh water is used for the cooling of cylinder jackets and () of the marine diesel engine.
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The main distribution duct in an air conditioning system which contains the cooling coils and filters is called the()
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One of the purposes for water cooling the exhaust manifold in marine diesel engine is to ()
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A two-stroke diesel engine exhaust temperature will be lower than a four-stroke diesel engine of the same displacement because the () (1) scavenging air is cooling the exhaust gases (2) exhaust cycle time is longer
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The main purpose of changing main engine to electronic controlled is not to()
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A large, low-speed, main propulsion diesel engine uses sea water to directly cool the ().
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The jacket water temperature in a diesel engine closed freshwater cooling system is normally controlled by ()
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The expansion tank for a diesel engine closed cooling system is designed to maintain a constant head on the system and ().
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The power output of a turbocharged diesel engine will drop if the cooling water flow through the after-cooler is interrupted because the ().
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About half an hour before the engine is required, cooling water at () must be circulated.
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The most serious effect of air trapped in a diesel engine jacket water cooling system is that it().
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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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With UMS, when the engine room is unwatched () will control the main engine.
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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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Before "stand-by" is rung on the engine telegraph, it is usual to give the main engine () ahead and astern.
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Which of the following statements is correct concerning diesel engine cooling water systems?()
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The operating diesel generators will have their exhaust temperatures, cooling water and lubricating oil temperatures and pressures () in much the same way as for the main engine.
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Cooling of engine is achieved by circulation a cooling liquid around internal passages within the ().
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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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The power output of a turbocharged diesel engine will drop if the cooling water flow through the after-cooler is interrupted because the _____.