Pass Benchmark: 70% (21/30) • Standard: USCG NMC / 46 CFR
USCG Deck General (Set 161)
30:00
|Question 1 of 30
Question Navigator
Correct Incorrect Pending Starred
Question 1 of 30
The DEEP DRILLER as currently configured is limited to a maximum drilling depth of __________.
Browse Questions in Set 161
30 MCQs #1 The DEEP DRILLER as currently configured is limited to a maximum drilling depth of __________. #2 The DEEP DRILLER is drilling at 60 feet draft at a corrected KG of 54.0 feet. Ballast added or discharged to remain at a constant draft is at a VCG of 10 feet. How much non-liquid load would have to be removed from an average height of 130 feet above the keel to meet the maximum allowable KG at a draft of 60 feet for winds greater than 70 knots? #3 The DEEP DRILLER is planning to operate while loaded as shown in the Sample Load Form #3 ( Preparing to Drill). What is the margin between KGT and maximum allowable KG? #4 When the height of the metacenter has the same value as the height of the center of gravity, the metacentric height is equal to __________. #5 The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). What is the new height of the center of gravity corrected for longitudinal free surface effects if the entire contents of Salt Water Ballast Tanks 1P and 1S are discharged? #6 Until a change to lightweight has been approved, the weights and moments shown in the Changes to Lightweight Record of the COASTAL DRILLER are treated as __________. #7 The DEEP DRILLER, loaded as shown in the Sample Load Form #4 (Drilling), discharges all the cement in the P-Tanks. See Table 7. What is the change in KG? #8 Where the seabed consists of sand or silt, the most severe potential problem for an independent-leg jack-up can result from __________. #9 The DEEP DRILLER, at 60.0 feet draft in sea water, has VM = 974,441 foot-long tons, LM = 3 foot-long tons, FSML = 30,572 foot-long tons, and FSMT = 18,732 foot-long tons. What is the transverse free surface correction to KG? #10 While the COASTAL DRILLER is in transit, stability is acceptable provided that neither the KGL nor the KGT exceed __________. #11 While preloading, the COASTAL DRILLER has a total weight of 21,401 kips. The LM are 2,560,416 ft-kips, and the TM are -6,206 ft-kips. What is the starboard leg reaction? #12 What device is used to measure the force exerted on the rig by a leg of the mooring system? #13 The COASTAL DRILLER, while in a normal transit, experiences single amplitude rolling of three degrees. What is the minimum period of roll which does not exceed the design limits of the legs? #14 The center of flotation for the COASTAL DRILLER is located at the geometric center of the __________. #15 The COASTAL DRILLER, while drilling, has a total weight of 15,400 kips. The LCG is 120.00 feet AF0, and the TCG is -0.5 foot to port of the centerline. What is the starboard leg reaction? #16 The COASTAL DRILLER, in transit with winds expected to exceed 70 knots, must lower the legs to 60.5 feet below the hull in order to meet the requirements for leg strength and __________. #17 The elevating system of the COASTAL DRILLER is normally limited to __________. #18 The total leg load reactions on an independent leg, self-elevating unit include static and __________. #19 Buoyancy associated with empty or partly empty ballast tanks in the mat of a mat supported jack-up MODU during jacking operations can cause __________. #20 When elevated, placing the LCG and TCG at the leg centroid provides __________. #21 Sea water temporarily pumped into tanks to simulate the increased vertical loading of environmental forces is termed __________. #22 The COASTAL DRILLER, following discharge of preload, should __________. #23 When the COASTAL DRILLER is properly preloaded, each of the leg reactions should be __________. #24 What is the port leg reaction for the COASTAL DRILLER if the total weight is 15,000 kips, LCG is 120 feet, and TCG is 1.0? #25 The COASTAL DRILLER, elevated in 150 feet of water with 0 knots current, 10 foot waves, and wind speeds of 70 knots may continue drilling if the maximum leg reaction is less than __________. #26 The COASTAL DRILLER, when underway was loaded as shown in Sample Load Form #1 (Rig Move). It is now preloaded at minimum air gap waiting for all settling to take place. The preload, weighing 7,191.7 kips, has LM 870,196 ft-kips and TM 2,158 ft-kips. What is the port leg reaction? #27 When preloading the COASTAL DRILLER, the maximum total weight shall not exceed __________. #28 While preloading, the COASTAL DRILLER has a total weight of 21,401 kips. The LM are 2,560,416 ft-kips, and the TM are -6,206 ft-kips. What is the port leg reaction? #29 You are operating a liftboat. When jacking down and a leg becomes stuck on the bottom, you should __________. #30 The DEEP DRILLER may remain at operating draft instead of deballasting to survival draft when __________.
Question Discussion & Notes
0Have a doubt, memory trick, or exam update? Share your insights with fellow mariners.
Loading mariner discussions...