34. 就一個長方形的水櫃來說，因自由液面使GM減損之量可由下列公式計算之。減少之GM = lb^3/12W × d_t/n^2，公式中各符號代表意義何者為非？(A) l：水櫃之長度(公尺)(B) b：水櫃之寬度(公尺)(C) d_t：所處水域海水密度(D) n：水櫃縱向分隔之艙間數目

2. What is the fog signal for a power driven vessel of 150 meters in length when at anchor inrestricted visibility?(A) Sound the bell for about 10 seconds in the fore part and after the ringing of the bell the gongshall be sounded rapidly for about 10 seconds in the after part of the vessel every two minutes.(B) Sound the bell for about 5 seconds in the fore part and after the ringing of the bell the gongshall be sounded rapidly for about 5 seconds in the after part of the vessel every two minutes.(C) Sound the bell for about 10 seconds in the fore part and after the ringing of the bell the gongshall be sounded rapidly for about 10 seconds in the after part of the vessel every minute.(D) Sound the bell for about 5 seconds in the fore part and after the ringing of the bell the gongshall be sounded rapidly for about 5 seconds in the after part of the vessel every minute.

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