阿摩線上測驗
20. What is the interval between isolation valves on the fire main on main deck of tankers as
per SOLAS?
(A) Not more than 30 meters.
(B) Not more than 40 meters.
(C) Not more than 50 meters.
(D) Not more than 60 meters.
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統計： A(167), B(143), C(81), D(33), E(0) #3306282
統計： A(167), B(143), C(81), D(33), E(0) #3306282
