Pass Benchmark: 70% (21/30) • Standard: USCG NMC / 46 CFR
USCG Deck General (Set 136)
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Question 1 of 30
On a semisubmersible MODU, reserve buoyancy is increased by the presence of void spaces above the waterline in the __________.
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30 MCQs #1 On a semisubmersible MODU, reserve buoyancy is increased by the presence of void spaces above the waterline in the __________. #2 On a MODU, the deck stringer is the outboardmost deck __________. #3 Compared to internal structural plating, the exterior hull plating on a MODU is usually __________. #4 The DEEP DRILLER is observed to be level at a draft of 60.0 feet. At the same time, the calculated load form shows the displacement to be 17,845 long tons, total longitudinal moment 51,466 foot-kips, and total transverse moments -10,000 foot-kips. What is the transverse location of the missing load? #5 A semisubmersible which flops between forward and aft angles of trim is likely to have __________. #6 The DEEP DRILLER is loaded as shown in the Sample Load Form #2 (Ballasting to Survival). What is the new draft if all the bulk materials are discharged? #7 In a semisubmersible MODU, the columns contain void spaces above the waterline that used principally for __________. #8 Horizontal subdivision decks forming watertight compartments in the columns of a semisubmersible MODU increase the unit's __________. #9 The stability of a semisubmersible MODU would be seriously reduced if flooding occurred in the __________. #10 While the DEEP DRILLER is loaded as shown in Sample Form #4 (Drilling), casing is accidentally dropped over the port side. Because the tank sounding level and port forward inclination are rapidly increasing, you decide that tank 1P is damaged. Your best countermeasure is to __________. #11 While the DEEP DRILLER is loaded as shown in Sample Form #4 (Drilling), casing is accidentally dropped over the port side. Because the sounding level and port aft inclination are slowly increasing, you decide that tank 10P has minor damage. Among the possible corrective actions is __________. #12 The DEEP DRILLER, at a draft of 19 feet, has a KGL of 59.91 feet and an LCG of 1.57 feet. What is the trim angle? #13 For a MODU with longitudinal inclination, an increase in GML causes __________. #14 The free surface effects of a partially-full tank in a floating MODU increase with the __________. #15 The DEEP DRILLER at a draft of 58.0 feet discharges 1,792.44 long tons of ballast. What is the new draft? #16 Structural stress on a MODU can be reduced by __________. #17 Structural stress levels in a MODU are the sum of loading stresses and stresses due to __________. #18 The DEEP DRILLER, while loaded as shown in the Sample Load Form #4 (Drilling), suffers damage to the starboard center column below the waterline. Among the tanks from which you should pump is tank __________. #19 The DEEP DRILLER has a KGL of 53.16 feet while at a draft of 58.0 feet. Although there are no environmental forces, trim is 2.0 feet by the stern. What is the value of LCG? #20 The mean draft of a MODU is the draft __________. #21 The true mean draft of a MODU is the draft __________. #22 The DEEP DRILLER at a draft of 60.0 feet discharges 68.94 long tons of ballast. What is the new draft? #23 The DEEP DRILLER at a draft of 58.0 feet loads 68.94 long tons of ballast. What is the new draft? #24 The DEEP DRILLER at survival draft loads 2,068.1 long tons of ballast. What is the new draft? #25 The DEEP DRILLER is loaded as shown in Sample Load Form #4 (Drilling). While the unit is deballasting, starboard valve 19 fails in the closed position. You may deballast from tank 9S by pumping from tank 8S by opening valves 20 and __________. #26 The DEEP DRILLER, at a mean draft of 60 feet, has a two-foot trim by the head and a three foot list to starboard. What is the draft at the port aft draft mark? #27 What is the displacement of the DEEP DRILLER with a draft of 19.5 feet in fresh water? #28 The DEEP DRILLER, while loaded as shown in the Sample Load #5, discharges 275.8 long tons. The resulting trim by the stern is 3 feet and list to port is 2 feet. What is the draft at the port aft draft mark? #29 The DEEP DRILLER, while loaded as shown in the Sample Load Form #5 (Survival) loads an additional 137.88 long tons. The resulting trim by the stern is 2 feet and the list to port is 3 feet. What is the draft at the port forward draft mark? #30 The DEEP DRILLER, at a mean draft of 45 feet, has a three-foot trim by the stern and a two-foot list to port. What is the draft at the starboard forward draft mark?
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