Question 342Safety & Environmental - 1st Asst/Chief70% to pass
During repairs it is necessary to replace an existing vessel bulkhead. Drawings indicate the bulkhead is A60. "A" indicates which of the following?
AI Explanation
The correct answer is C) "A" class bulkheads must not allow flame or smoke passage for 60 minutes when subjected to a fire test.
The "A" classification for bulkheads refers to their fire-resistance rating, which requires them to maintain their integrity and prevent the passage of flame and smoke for a minimum of 60 minutes when subjected to a standard fire test. This is in accordance with the international safety regulations for construction and equipment of ships, which specify the fire performance requirements for different classes of bulkheads and other ship structures.
The other answer choices are incorrect because they do not accurately reflect the fire-resistance time requirement for "A" class bulkheads, which is 60 minutes, not 15, 30, or 120 minutes.
Related Questions
#340 During repairs it is necessary to replace an existing vessel bulkhead. Drawings indicate it is a "B" class bulkhead. This indicates which of the following? #341 On the illustrated fire control plan, what emergency equipment is located in the scullery? Illustration SF-0045 #343 Drawings of your deck plans show the use of A60 bulkheads. "A" indicates which of the following? #344 Drawings of your ship indicate the use of "B" class bulkheads. The "B" indicates which of the following? #345 You are being directed to a fire in the lower engine room, port side, frame 127. What machinery is found in that exact location? Illustration SF-0044