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輪機(jī)英語單項選擇題每日一練(2020.04.01)

單項選擇題
When the desired rudder angle is attained by a typical double mm electro-hydraulic steering gear,the（）.
A.ram relief valves bypass oil to stop rudder movement
B.six-way valve shifts to the neutral flow position
C.steering pump electric motor is de - energized by the transfer switch
D.follow-up gear takes the hydraulic pump off stroke
單項選擇題
Increased internal leakage, in addition to poor hydraulic system response,and inadequate lubrication, is the result of （）.
A.pump bearings in poor condition
B.excessively worn actuator-piston packing
C.broken directional control valve centering springs
D.low hydraulic oil viscosity
單項選擇題
Which of the following actions should be taken by the engine room watch when the general alarm is sounded continuously?（）
A.The fire pump should be started
B.The boiler rims should be secured
C.The fixed CO₂system should be initiated into action
D.The engine room ventilation should be secured
單項選擇題
The primary task of the compressed air system is to deliver the starting air necessary for （）
A.starting the ME
B.starting the emergency electric alternator
C.driving the main turbine
D.driving the turbocharger
單項選擇題
When anchoring in open anchorage, chief engineer should consult with captain （）
A.if the ship must be stand by
B.if M-E should be stopped
C.if keep-watching as in voyage
D.if the ship must anchor two anchors

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