Question 3501Deck General70% to pass
In observing rig motion while under tow, the period of roll is the time difference between _______________.
AI Explanation
The correct answer is B) full inclination on one side to the next full inclination on the same side.
This is because the period of roll refers to the time it takes for the rig or vessel to complete one full cycle of rolling from one side to the other and back again. The time difference between two successive full inclinations on the same side represents one complete rolling period.
The other answer choices are incorrect because they do not accurately capture the definition of the period of roll. Option A measures the time between full inclinations on opposite sides, option C measures from zero to full inclination, and option D measures between successive zero inclinations, none of which properly define the rolling period.
Related Questions
#3499 Among the possible causes of unexpected rapidly increasing inclination of the DEEP DRILLER while in transit is _______________.#3500 Yawing can be described as _______________.#3502 The full period of motion of the DEEP DRILLER while tripping is 8 seconds and the maximum pitch angle as seen on the inclinometers is 4 degrees. From the standpoint of critical motion, the motion is _______________.#3503 The DEEP DRILLER is under tow at a 20 foot draft. The rig motions are close to exceeding the limits for critical pitch and roll. The rig is also experiencing occasional pounding on the horizontal braces. In this situation you should _______________.#3504 The DEEP DRILLER is being towed at a 20 foot draft. Vessel motions are within acceptable limits, but the waves begin to hit the horizontal braces. You should _______________.