无码高清视频|成人自拍视频|欧美成人午夜无码A片秀色直播|草美女视频网站|美女被操网站在线观看

<pre id="gz0ir"><strong id="gz0ir"></strong></pre>

<ins id="gz0ir"></ins>

單項選擇題

Each emergency generator on a mobile offshore drilling unit，when tested，must be run under a full load for at least（）.

A.one hour
B.two hours
C.ten hours
D.four hours

你可能感興趣的試題

單項選擇題

During the towing of a survival craft，a lookout should be on station to（）.

A.release the towline in an emergency
B.help the helmsman steer
C.look for food and water
D.check the water level in the bilge

單項選擇題

Coast Guard regulations require that all of the following emergencies be covered at the periodic drills on a fishing vessel EXCEPT（）.

A.minimizing the affects of unintentional flooding
B.fire on board
C.rescuing an individual from the water
D.emergency towing

<pre id="lixse"></pre>