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单选题
If an electric cargo winch is being used to lift a draft of cargo and the engine room loses all power，which will occur?（）
A
A pawl，forced by a spring mechanism，will engage the teeth of the bull gear and hold the load
B
An electromagnetic brake will hold the load where it is suspended
C
The load will fall rapidly to the deck unless the foot brake is engaged
D
The load will slowly lower to the deck under control of the drag of the winch motor
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更多 “单选题If an electric cargo winch is being used to lift a draft of cargo and the engine room loses all power，which will occur?（）A A pawl，forced by a spring mechanism，will engage the teeth of the bull gear and hold the loadB An electromagnetic brake will hold the load where it is suspendedC The load will fall rapidly to the deck unless the foot brake is engagedD The load will slowly lower to the deck under control of the drag of the winch motor” 相关考题
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If an attempt is made to hoist a load that exceeds the capacity of an electric winch，an overload safety device causes a circuit breaker to cut off the current to the winch motor ______．A.when the line pull reaches the rated winch capacityB.after the line pull exceeds the rated winch capacityC.after a short build-up of torqueD.immediately
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If an electric cargo winch is being used to lift a draft of cargo and the engine room loses all power，which will occur ________．A.A pawl，forced by a spring mechanism，will engage the teeth of the bull gear and hold the loadB.An electromagnetic brake will hold the load where it is suspendedC.The load will fall rapidly to the deck unless the foot brake is engagedD.The load will slowly lower to the deck under control of the drag of the winch motor
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单选题If an attempt is made to hoist a load that exceeds the capacity of an electric winch，an overload safety device causes a circuit breaker to cut off the current to the winch motor（）.A
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as a connecting strap between the butted ends of platingB
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单选题Which device is designed to automatically hold the load if power should fail to an electric winch?（）A
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考题
单选题The sign used to caution persons approaching the gangway of a tank barge during cargo transfer reads（）.A
Warning，Keep Off，Stay ClearB
Danger，Do Not BoardC
Warning，No Smoking，No Open Lights，No VisitorsD
Dangerous Cargo Being Transferred
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