Question 1468 Deck Safety

The correct answer is C) four rockets, two of which shall be the buoyant type. According to the regulations for line throwing apparatus aboard ship, the equipment must contain four rockets, two of which must be the buoyant type. This requirement ensures that the line throwing device has adequate capacity and redundancy in case one of the rockets fails to perform as expected. The other answer choices are incorrect because they do not match the regulatory requirement of four rockets, two of which must be buoyant. Options A, B, and D propose lesser or greater numbers of rockets, which would not satisfy the established standard.