單項(xiàng)選擇題

Thirty-five percent of the breaking strength of an anchor cable is generally accepted as the（）.

A.safe operating load
B.normal operating tension
C.emergency working load
D.allowable storm load

你可能感興趣的試題

單項(xiàng)選擇題

The vessel’s Emergency Position Indicating Radio beacon (EPIRB) must be tested（）.

A.weekly
B.monthly
C.every 2 months
D.every 3 months

單項(xiàng)選擇題

The signal for a fire emergency on an OSV is（）.

A.a 30 second on 30 second off alternating signal
B.the continuous blast of the ships whistle for not less than 10 seconds supplemented by the continuous ringing of the general alarm bells for not less than 10 seconds
C.an intermittent ringing of the general alarm for not less than ten seconds
D.announced over the PA system