Question 10General Subjects - Assistant Engineer70% to pass
Which of the following ballasting operations performed in conjunction with off-loading cargo could be accomplished without the use of a ballast pump?
AI Explanation
The correct answer is D) Filling a salt water ballast tank located below the waterline.
This is because a ballast tank located below the waterline can be filled by hydrostatic pressure, without the need for a ballast pump. The water pressure outside the hull will naturally force the water into the lower ballast tank, causing it to fill.
The other options are incorrect because: A) Filling an above-waterline tank would require a pump to overcome gravity, B) Draining an above-waterline tank would also require a pump, and C) Draining a below-waterline tank would require a pump to overcome the hydrostatic pressure.
Related Questions
#8 Which of the following bilge pumping applications would most likely use a non-automated centrifugal pump under manual supervision? #9 Salt water ballast is to be discharged into the No.6 port and starboard wing tanks. Which combination of valves, illustrated, must be opened, and which valves should be closed? Illustration GS-0139 #11 Which of the following deballasting operations performed in conjunction with loading cargo could be accomplished without the use of a ballast pump? #12 With regard to a ballast system associated with a dry cargo ship, what is the primary purpose of the fore peak and after peak tanks? #13 With regard to a ballast system associated with a dry cargo ship, what is the primary purpose of the double bottom ballast tanks?