When air becomes trapped in the hydraulic fluid of a steerin

第1题

单选题When air becomes trapped in the hydraulic fluid of a steering system, the （）.A rudder will respond sluggishlyB hydraulic rams will over-speedC sight glass will show bubblesD ram relief valves will lift

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第2题

单选题The follow-up gear on an electro-hydraulic steering gear（）A relieves excessive fluid pressureB takes the pump off stroke when the desired rudder angle is attainedC synchronizes wheel position with the rudder positionD returns the rudder to midposition when the wheel is released

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第3题

单选题A hydraulic accumulator is designed to（）.A store fluid under pressureB act as a fluid reservoirC provide overpressure reliefD replenish fluid to a system

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第4题

单选题Hydraulic machinery failures are commonly caused by contamination of the hydraulic fluid and （）.A fluid frictionB fluid turbulenceC component misalignmentD pressure surges

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第5题

单选题In a shell-and-tube type hydraulic fluid cooler, the amount of heat transferred from the hydraulic fluid to the cooling water depends upon（）A the temperature of the hydraulic fluidB the flow rate of the hydraulic fluidC the temperature of the cooling waterD all of the above

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第6题

单选题When retrieving the survival craft，the winch operator should stop the winch and check（）.A that all personnel are seated in the craftB that the cable has not jumped any grooves on the drumC which way the wind is blowingD the hydraulic fluid level before lifting

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第7题

单选题Hydraulic machinery failures are commonly caused by misalignment of the system components and by （）.A hydraulic fluid contaminationB excessive fluid frictionC turbulent fluid flowD fluid pressure surges

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