The gear, screw, and vane pumps are all classified as ().
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相似题目
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In a () the center screw is driven and the outer screws idle.
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Where are the test certificates,for wire rope used as cargo runners,and loose gear certificates usually maintained? ()
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Under rotary pumps are the gear, (), cam-and-piston and screw types.
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Before engaging the turning gear and turning the diesel engine, which of the following operation should be done except ()
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Which of the following pumps will build up a bursting pressure or stall their motors if the discharge valves are closed?() (1) gear (2) centrifugal (3) screw
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Pitting in the area close to the pitch line and on the same end of each gear tooth of a reduction gear unit would be caused by ()
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Two vessels are abreast of each other and passing port to port in a confined waterway. What should you expect as your bow approaches the screws of the other vessel? ()
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() connected to the moving tiller will bring the floating lever pivot and the lever into line at right angles to the screw shaft axis.
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The rudders are amidships and both screws are going ahead. What will happen if the starboard screw is stopped?()
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Large marine diesel engines of crosshead construction generally have two systems of lubrication: a total loss system feeding the () and a recirculation system lubricating the running gear and cooling the piston.
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According to the way the steering gear is operated, the steering gear may be divided into: hand - steering, () and automatic steering.
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After "F.W.E" is given, the air system is shut down, the () gear put in, all drains and indicator cocks opened, and the cooling water kept running.
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()diesel engines generally have two systems of lubrication:()a total loss system feeding and a circulating system lubricating the running gear and cooling the pistons.
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Some medium and high-speed diesel engines require reduction gear units to provide a useful propeller speedIn most reduction gears, the bull gear()
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The gear and screw pumps are classified as ().
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Insufficient space between the hull and bottom in shallow water will prevent normal screw currents resulting in ().
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There is a () system lubricating the running gear and cooling the piston and sometimes lubricating the cylinders.
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Start the turning gear, and with some one hand-operating the cylinder lubricators at regular intervals, and with the indicator cocks (), and with the control gear in the ()position, give the engine at least one complete turn.
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Which of the following pumps are self-priming, and can deal with liquid from a level below the pump() (1) ejector (2) screw (3) centrifugal
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To center a compass bowl in its binnacle,you should have the ship on an even keel,heading north or south,and adjust the screws until().
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Which of the following pumps are self-priming, and can deal with liquid from a level below the pump? () (1) reciprocating (2) vane (3) gear
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In an electro-hydraulic steering gear, any change in relative position between the synchronous receiver and the follow-up gear will result in()
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Always ensure that the turning gear is______, even at the quay, the wave from other ships may turn the propeller and thus the engine.
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The rudders are amidships and both screws are going ahead.What will happen if the starboard screw is stopped ________.
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