An orifice-check valve placed in a hydraulic system is used to()
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相似题目
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In an operating diesel engine, which of the following condition is an indication of a leaking air starting valve?()
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速腾可选装PLA智能泊车辅助功能。
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For an ordinary four-stroke engine the exhaust valves open ().
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If you were inspecting the valve springs on an auxiliary diesel engine, your best indication of impending spring failure would be ()
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In an engine with air inlet valve and exhaust valve on its cylinder heads the fresh air will enter into the cylinder () and the gases exhaust (), there being an adequate overlap between the inlet opening and the exhaust closing.
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If the thermal bulb of an expansion valve is incorrectly placed at the center of the coil instead of the end, it will ().
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For an ordinary modem marine four-stroke engine the inlet valves close ().
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A loud clicking noise from the valve compartment of an operating diesel engine would indicate()
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PLA是指()。
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Which action must be taken when an individual cargo tank is closed off from the inert gas system by the tank isolation valve?()
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If a single cylinder relief valve on a diesel engine lists frequently while the engine is running, the cause may be an ()
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Excessive valve lash in an auxiliary diesel engine will cause the valves to open()
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A thermostatic expansion valve is properly controlling evaporator superheatAdjusting this valve to lower the superheat will result in a/an ().
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The opening of an exhaust valve on a modem, large, low-speed, main propulsion diesel engine may be actuated by ().
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An axial piston, variable stroke pump is used in a vessels hydraulic steering gearUnder pressure, oil continually leaks out from between the valve plate/cylinder barrel and will().
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For an ordinary four-stroke diesel engine the exhaust valves close ().
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For an ordinary four-stroke engine the inlet valves open ()
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Where an excessive level of contamination is detected an alarm is sounded and diverting valves are operatedThe discharging liquid is then passed to ().
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Broken valve strips in an operating low pressure, air compressor will cause ().
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The purpose of the safety relief valves installed on an auxiliary boiler is to ().
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In an ordinary four-stroke engine the exhaust valves open ()
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A cutoff valve in the fire-main system of a ship may be closed to protect the portion of the system on an exposed deck from().
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An interlock in the remote operating valve line stops the valve () when the engine turning gear is engaged.
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ROM和PLA在结构上的区别,主要是ROM的与阵列______编程,而PLA的与阵列______编程。