Pass Benchmark: 70% (21/30) • Standard: USCG NMC / 46 CFR
USCG Engineering Safety & Environmental Protection (Set 21)
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Question 1 of 30
As Chief Engineer your vessel has been damaged and one compartment has partially flooded. The vessel has free communication with the sea with water flowing in and out as the vessel rolls. The most important factor contributing to free communication loss of stability is which of the following?
Browse Questions in Set 21
30 MCQs #1 As Chief Engineer your vessel has been damaged and one compartment has partially flooded. The vessel has free communication with the sea with water flowing in and out as the vessel rolls. The most important factor contributing to free communication loss of stability is which of the following? #2 When a vessel is inclined, the tendency for it to return to its original position is caused by the __________. #3 The center of volume of the immersed portion of the vessel is the __________. #4 The water in which a vessel floats provides vertical upward support. The point through which this support is assumed to act is known as the center of __________. #5 The difference between the initial trim of a vessel and the trim after a change in load has occurred is known as __________. #6 For a vessel with a block coefficient of 1, the addition of weight at the center of flotation will __________. #7 The difference between the starboard and port drafts caused by a transverse shift in weight is called _______. #8 The difference between the starboard and port drafts due to wind or seas is called __________. #9 As an engineer, you should be familiar with the conditions that will cause a vessel to transversely incline, list, or trim. Which of the following conditions causes a vessel to trim? #10 While serving as Chief Engineer on a partially loaded container ship the vessel is involved in a collision. An empty starboard side wing tank becomes open to the sea and the ship takes a starboard list. After investigating the damage it is found that no other adjoining tanks are open to the sea. What action should be recommended to ensure the ship maintains an even keel position? #11 A vessel's stability is greatly reduced by liquid free surface. Which of the listed conditions would develop the greatest adverse effect? #12 Adverse effects due to free surface will result when __________. #13 Your vessel has been damaged in a grounding and one compartment has partially flooded. As a result, you have lost buoyancy. If transverse stability in the flooded condition is poor or negative, every effort should be made to reduce the free surface and to lower the center of gravity. Which of the following should you ensure is maintained? #14 A ballast tank is one-third full when additional ballast is added until it is two-thirds full. The increased amount of liquid in the tank will have the greatest influence on the __________. #15 You can generally improve the vessel's stability in a hazardous situation by __________. #16 The factor contributing to the greatest effect on the ship's period of roll is the __________. #17 The 2nd assistant engineer has just finished fueling operations. After entering the fuel data into the loading computer you notice a greater than allowable at-sea bending stress. After the chief mate checks the voyage cargo data the vessel still has an excessive at-sea hogging bending stress. As Chief Engineer and after consulting with the Chief Mate, what should your instructions be to reduce the bending moment when ballasting the vessel? #18 Following cargo loading operations, your vessel is experiencing an excessive at-sea hogging bending stress as shown in the illustration. What should you do to reduce the bending moment? See Illustration SF-0047 #19 Following cargo loading operations, your vessel is experiencing an excessive at-sea sagging bending stress as shown in the illustration. What should you do to reduce the bending moment? Illustration SF-0047 #20 Pitching is the rising and falling motion of the bow of a ship oscillating about which axis? #21 The motion of a vessel impacts its stability. Which of these motions shown in the illustration affects the governing "motion ahead and astern" stability? Illustration SF-0048 #22 The motion of a vessel impacts its stability. Which of these motions shown in the illustration affects the governing "longitudinal" stability? Illustration SF-0048 #23 The device used for preventing the passage of flames into enclosed spaces is called a __________. #24 Coast Guard Regulations (46 CFR), require electric hand lamps, approved for use in fuel tanks, to be battery powered and __________. #25 Coast Guard Regulations (46 CFR) require that lifejackets shall be __________. #26 According to 46 CFR part 95, which of the listed fire extinguishers would be considered hand portable/semi portable and capable of combating a class "B" fire? #27 According to Coast Guard Regulations (46 CFR), portable and semi-portable fire extinguishers are classified by a letter and numeric designator. The letter designation indicates __________. #28 If the empty weight of a B-III semi-portable CO2 fire extinguisher is 35 lbs (15.9 kg), what is its full charged weight? #29 Fire doors are released by a/an __________. #30 According to Coast Guard Regulations (46 CFR), which of the firefighting devices listed is not permitted for use in the engine room?
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