默认题库 - 船舶强度资料

单选题

For pumping the bilges，a 54 foot long “T-Boat”，which is not a ferry，but is certificated to carry 30 passengers，must be fitted with at least（）.

A. one fixed power pump and one portable hand pump
B. one fixed hand pump and one portable hand pump
C. two portable hand pumps
D. either "A" or "B&quot

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单选题

For safety reasons，when assistance towing（）.

A. the disabled vessel should be towed to the nearest port
B. the disabled vessel should be inspected for flammable gases
C. passengers should always be removed from the disabled vessel
D. personnel on the disabled vessel should don PFD'

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单选题

For the purpose of training and drills，if reasonable and practicable，rescue boats on an OSV must be launched with their assigned crew（）.

A. once a week
B. once a month
C. once a year
D. twice a year

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单选题

Forty-five fathoms is marked on the anchor chain by（）.

A. one turn of wire on the first stud from each side of the detachable link
B. two turns of wire on the second stud from each side of the detachable link
C. three turns of wire on the third stud from each side of the detachable link
D. four turns of wire on the fourth stud from each side of the detachable link

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单选题

Fusible-link fire dampers are operated by（）.

A. a break-glass and pull-cable system
B. electrical controls on the bridge
C. a mechanical arm outside the vent duct
D. the heat of a fire melting the link

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单选题

Halon fire extinguishers are NOT effective when used on which types of fires?（）

A. Fires in electrical equipment
B. Flammable oils and greases
Class "A" fires in ordinary combustibles
D. Materials containing their own oxyge

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