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单选题
On all vessels equipped with refrigeration units of over 20 cubic foot capacity, （）.
A
a gas mask suitable for protection against each refrigerant used, or a self contained breathing apparatus must be provided
B
it is the sole responsibility of the chief engineer to ascertain that all members of the engineering department are familiar with the use of gas masks or breathing apparatus
C
spare charges shall be carried for at least 50% of each size and variety of gas masks and/or self contained breathing apparatus
D
all of the above
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更多 “单选题On all vessels equipped with refrigeration units of over 20 cubic foot capacity, （）.A a gas mask suitable for protection against each refrigerant used, or a self contained breathing apparatus must be providedB it is the sole responsibility of the chief engineer to ascertain that all members of the engineering department are familiar with the use of gas masks or breathing apparatusC spare charges shall be carried for at least 50% of each size and variety of gas masks and/or self contained breathing apparatusD all of the above” 相关考题
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fire stations aboard the vessel，except for those in open deck areas weatherdeck and cargo hold fire stationsB
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单选题On all vessels equipped with refrigeration units of over 20 cubic foot capacity, （）.A
a gas mask suitable for protection against each refrigerant used, or a self contained breathing apparatus must be providedB
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考题
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考题
单选题Which of the following statements is TRUE regarding automatic identification systems (AIS)? （）A
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考题
单选题Radar reflectors are required for（）.A
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sail-propelled fishing vesselsC
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wooden hull fishing vessels with a poor radar echo
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all fishing vessels over 39 feet in lengthB
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portable ventilation systemB
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inspected weeklyB
worn at all timesC
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empty cargo spacesC
gas tight bulkheadsD
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