7.Over flow means ________ of oil or liquid from tank because of a twofold condition as a result of overflowing. (A)spilling (B)leakage (C)escape (D)flooding

11.When two power-driven vessels are meeting on reciprocal or near reciprocal courses, so as to involve risk of collision, which action is the best and correct? (A)The big ship shall stop her engine. (B)The small ship shall stop her engine. (C)Each shall alter her course to starboard. (D)Each shall alter her course to port.