Question 4273Deck General70% to pass
While on a normal tow, the COASTAL DRILLER is threatened with the approach of a severe storm. Including the time required to place the generators on-line, the approximate time required to lower the legs from a TOC (tip-of-can) position of 1.20 feet to 60.50 feet is _______________.
AI Explanation
The correct answer is D) 55 minutes.
This is because the time required to lower the legs of the COASTAL DRILLER from a TOC (tip-of-can) position of 1.20 feet to 60.50 feet, including the time needed to place the generators on-line, is approximately 55 minutes. This time estimate is based on the standard operating procedures and regulations governing the safe operation of offshore drilling rigs in severe weather conditions.
The other options are incorrect because they do not accurately reflect the time required to complete this critical safety procedure. Option A (8 minutes) is too short, Option B (32 minutes) is too short, and Option C (47 minutes) is also too short, given the need to lower the legs a significant distance and engage the generators.
Related Questions
#4271 The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). What are the new LM (longitudinal moments) if the entire contents of Salt Water Ballast Tanks 1P and 1S are discharged? #4272 The height of the transverse metacenter of the Coastal Driller at a displacement of 13,050 kips is _______________.#4274 While loaded as shown in Sample Load Form #5 (Survival), an estimated 250 long tons of snow and ice accumulates on the DEEP DRILLER at an estimated height of 127 feet. Assuming no corrective ballasting, what is the rise in the height of the center of gravity corrected for longitudinal free surface effects? #4275 The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). Weather conditions require ballasting to survival draft. Assume that 4087 long tons of ballast are added at an average VCG of 8.32 feet, and upon arrival at 45 feet, port and starboard ballast tanks 1, 3, and 8 are slack. What is the new KGL? #4276 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 starboard leg reaction?