The safety valve should be () in the presence of C/E and Surveyor.
相似题目
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When start a screw pump, the by pass valve should be ().
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In setting the valves on a steam-smothering system on a tank vessel,the master control valve to cargo tanks should be().
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The humidifier’s valve of air-condition should be (), when the temperature is lower than 0℃.
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Safety valves on a boiler vent to the ().
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In machinery space, the valves, pipes should be()
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In setting the valves on a steam-smothering system on a tanker,the master control valve to cargo tanks should be().
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The bypass valve on a self-contained breathing device should be opened if().
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Vessels should be manned()duly qualified officers and crew adequate()ensure the safety of navigation.
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When starting a reciprocating pump, the inlet valve should be ().
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Some vessels are equipped with a water lubricated stern robeWhen at sea, operating under normal conditions, the water service valve from the ships saltwater system to the bearing should be ().
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Which of the valves listed should be used either in the fully opened or the fully closed position?()
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During PSC inspection related to the ISM Code, of the Safety Management System (SMS) should be carried out if clear grounds are established()
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During the dock repair, each sea valve must be disassembled, cleaned and ground well.Before it reassemble the sealing surface between the valve and the valve seat should be checked by ()
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Which of the listed items should be secured before performing any maintenance on a solenoid operated air start valve?()
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When the order () is received from the bridge, the main air stop valve in the starting air line should be shut.
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During (), the starting air valves should be closed to prevent the engine from turning.
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When starting a centrifugal pump, the discharge valve should be ().
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The humidifier’s valve of air-conditioner should be (), when the temperature is 5~8°C in the winter.
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The purpose of the safety relief valves installed on an auxiliary boiler is to ().
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During the inspection, the starting air valves should be closed () the engine from turning.
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Adjustments to the compensating needle valve in a hydraulic governor should be made with the engine at ()
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What safety precautions should be observed by the crew while working around machinery in an engine room?()
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During the dock repair, each sea valve must be disassembled, cleaned and ground wellBefore it reassemble the sealing surface between the valve and the valve seat should be checked by ____.
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The humidifier’s valve of air-condition should be ____, when the temperature is lower than 0°C.
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