單項(xiàng)選擇題The light on a life jacket must be replaced().

A.when the power source is replaced
B.each year after installation
C.every six months
D.when it is no longer serviceable


您可能感興趣的試卷

你可能感興趣的試題

1.單項(xiàng)選擇題The lifesaving equipment on all vessels shall be().

A.inspected weekly
B.stowed in locked compartments
C.readily accessible
D.tested yearly

2.單項(xiàng)選擇題The life jackets on all vessels shall be().

A.inspected weekly
B.worn at all times
C.readily available
D.tested yearly

3.單項(xiàng)選擇題The last shot of an anchor cable is usually painted().

A.white
B.international orange
C.yellow
D.red

4.單項(xiàng)選擇題Safety shackles are fitted with().

A.a threaded bolt
B.a round pin,with a cotter pin
C.a threaded bolt,locknuts,and cotter pins
D.round pins and locknuts

5.單項(xiàng)選擇題Required lifesaving equipment on existing vessels may becontinued in use on the vessel if().

A.kept on board no more than 2 years
B.inspected and serviced every 6 months
C.destroyed if more than 5 years old
D.maintained in good and serviceable condition