23. 船舶貨艙口緣圍（Ｈatchway coamings)離甲板之高度，其所處位置為第一種位置 （Position1)至少需多少距離？
(A) 300mm
(B) 450mm
(C) 600mm
(D) 900mm

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統計： A(104), B(198), C(305), D(49), E(0) #3155789

詳解 (共 2 筆)

#6019141
船舶載重線勘劃規則 第 76 條 ...
(共 108 字，隱藏中）
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#6018931

Section 5 Hatch coamings

5.1 General

5.1.1 The height of coamings above the upper surface of the deck, measured above sheathing if fitted, for hatchways closed by portable covers secured weathertight by tarpaulins and battening devices, is to be not less than:

  • 600 mm at Position 1,
  • 450 mm at Position 2.
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