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[单选题] What is the operating principal of a flash type evaporator?()
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[单选题] What is an advantage of diesel over steam turbine propulsion? ()
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[主观题] 在并联交流电路中,支路电流有可能()总电流。
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[单选题] What is the purpose of the intake/exhaust valves in a diesel engine? ()
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[单选题] On a ship,the possibility of a blowout makes which type of diesel engine shutdown desirable?()
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[单选题] Vessels required to be equipped with an approved backfire flame arrester are().
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[单选题] If an electric cargo winch is being used to lift a draft of cargo and the engine room loses all power,which will occur?()
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[单选题] What is an advantage of a steam turbine over a diesel for the main propulsion?()
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[单选题] The lower section of a piston is called the ().
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[单选题] Exhaust valve grooving and corrosion is caused by certain components of residual fuel oilThese components are sodium, sulfur, and ().
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[单选题] How would the exhaust of a properly operating diesel engine appear?().
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[单选题] Cross scavenging requires the fitting of () to prevent air or exhaust gas escape when the piston is at the top of the stroke.
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[单选题] Before starting any diesel or gasoline engine,which of the following must be checked? ()
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[单选题] The pivot pin at the base of a sheath-screw boom davit must be().
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[单选题] How should you warm up a diesel engine that has not been run for some time? ()
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