Pass Benchmark: 70% (21/30) • Standard: USCG NMC / 46 CFR
USCG Deck General (Set 143)
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Question 1 of 30
In the COASTAL DRILLER, LCG is obtained from the sum of the longitudinal moments by __________.
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30 MCQs #1 In the COASTAL DRILLER, LCG is obtained from the sum of the longitudinal moments by __________. #2 The DEEP DRILLER is loaded as shown in the Sample Load Form Number 5 (Survival) when an unexpected slowly increasing starboard list and bow down trim occurs. A leak in 1S is found. By deballasting from ballast tanks 2S and 3S, the inclination slowly decreases. The increase in the transverse free surface corrections is __________. #3 The COASTAL DRILLER is loaded as shown in the Sample Load Form Number 1 (Rig Move). If the contents of 6 and 7 drill water tanks are discharged, what would be the new height of the transverse metacenter? #4 What are the maximum vertical moments, including free surface moments, permitted on the DEEP DRILLER at a draft of 60 feet if the winds are less than 70 knots? #5 The COASTAL DRILLER is in transit at a draft of 10.5 feet. It discharges 216.43 kips of weight. What is the new draft? #6 Which statement about ships operating in ice is FALSE? #7 The maximum allowable KG for the COASTAL DRILLER in normal transit at a draft of 10.5 feet is __________. #8 Aboard a MODU, multiplying a load's weight by the distance of the load's center of gravity from the centerline results in the load's __________. #9 A vessel which is being assisted by an icebreaker would display a flag hoist consisting of the code numeral "4" when the vessel __________. #10 An icebreaker assisting a vessel through an ice field would display a visual signal consisting of the code letter "M" (Mike) to signify that "__________". #11 With a rig in tow, there is immediate danger to the tug in the event of the __________. #12 Because there is a possibility of fuel oil being discharged overboard from a full fuel oil tank, it is decided to transfer 25 kips from tank 14 to tank 13. See COASTAL DRILLER Sample Load Form Number 1 (Rig Move). What would be the change in vertical moments with this transfer? #13 On the machinery deck of the COASTAL DRILLER, each watertight compartment has at least one sump valve that can be remotely operated from the __________. #14 You are on an ice-reinforced vessel about to enter pack ice. You should __________. #15 A vessel which is being assisted by an icebreaker should indicate that he is ready to cast off the towline (if one is used) by __________. #16 An icebreaker assisting a vessel through an ice field would display a visual signal consisting of the code letter "I" (India) to signify that "__________". #17 For a MODU with transverse inclination, an increase in GMT causes __________. #18 An icebreaker assisting a vessel through an ice field would display a visual signal consisting of the code letter "S" (Sierra) to signify that "__________". #19 While in transit at a draft of 10.5 feet, the COASTAL DRILLER has a KGT of 60.0 feet. What is the GMT? #20 While being assisted by an icebreaker on Lake Superior, you receive a single letter code instructing you to slow your vessel. Which signal could you use to signify that you are complying with the request? #21 The effect of ocean currents is usually more evident on a rig being towed than on a tug navigating independently because the __________. #22 When more than one vessel is being assisted by an icebreaker, distances between vessels should be constant. Which signal should be given by a vessel which is ahead of another and whose speed suddenly begins to drop? #23 An icebreaker may use the code letter "K" to remind ships of their obligation to listen continuously on their radio. This signal may be made by any of the following EXCEPT __________. #24 A jack-up with displacement of 10,000 kips has its LCG 100 feet aft of frame zero (AFO). If 200 kips are loaded at 60 feet AFO and 100 kips are discharged from 20 feet AFO, what is the new LCG? #25 An icebreaker displaying a flag hoist which consists of the code letters "WO" (Whiskey Oscar) is indicating that __________. #26 Ice is often strong enough to halt navigation through the St. Lawrence Seaway by mid- __________. #27 What is the trim of a jack-up with a forward draft of 12 feet and an after draft of 13 feet? #28 A jack-up is trimmed six inches by the bow. The moment required to change trim one inch is 1200 foot-kips. Transferring 200 kips of drill water from a tank with an LCG of 20 feet to a tank with an LCG of 140 feet results in a final trim of __________. #29 The COASTAL DRILLER is loaded as shown in the Sample Load Form Number 1 (Rig Move). If the contents of 6 and 7 drill water tanks are discharged, what would be the new VCG? #30 The existence of liquids in partially full tanks or compartments of a MODU causes a virtual rise in the height of the __________.
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