What real-time force is used in the DP mathematical model?, a. Wind direction and relation to ships heading, When might it be necessary to deselect the wind sensor during DP operation?, a. Wind shadow, Which would NOT be expected to increase vessel excursion on DP?, a. Loss of half available thrusters, Why would charterers prefer DP2 over DP1?, a. Worst case failure, During cable laying, the cable fouls the main propeller. What is the most important action?, a. Determine the effect on vessel capability, What is the main function of the Power Management System?, a. Prevent blackout, Why does a Power Management System have load-sharing preferential tripping?, a. To supply power needed, An HPR transponder beacon is a device which…, a. Interrogated through Electrical cable, reply through water, Which will NOT have an effect on tunnel thruster performance?, a. Water depth, When can thruster bias be selected?, a. Light environment condition, What protects a Class 2 DP vessel from power shortages/blackout leading to drift-off?, a. Power management preferential tripping, During DP operation planning, what is essential?, a. Full hazard identification and risk assessment be conducted, If the wind sensor is blocked by the platform topside, what should you NOT do?, a. Maintain position, Which environmental factor affects reception of global satellite data?, a. Sun spot activity, On a PSV alongside, what could cause a sudden increase in DP current?, a. Wind sensor error, In fog at a range of 100 m, which position reference are you unlikely to use?, a. Laser, During worst single failure, the online consequence analysis continues to ensure the vessel can…, a. Maintain position and heading, When planning DP close to a fixed structure, what is an important consideration?, a. Take into account drift on and drift off, When should backup control be tested?, a. Every arrival at 500m, A Class 2 vessel loses one bow tunnel thruster to full force. What should the DPO do first?, a. Activate emergency stop for the failed thruster, Which system may be affected by a 3-m radar operator?, a. Artemis/Radius, When the DP system is fully automatic, the DP current is…, a. Determine from mathematical model, Which system rejects unusual jumps in received signals?, a. Kalman Filter, With a taut wire positioning system, which factor is significant?, a. The position of the vessel is related to the work site, Which mode allows the vessel to automatically follow an ROV?, a. Follow target, follow sub, The vessel’s above-waterline form (“Sealine”) affects the mathematical model based on…, a. The wind strength in relation to the ships heading, Which does NOT adversely affect the DGNSS system?, a. Dense fog, Available power in the Power Management System refers to…, a. The reserve power at any given time, During DP operation, which position reference should be avoided in fog?, a. Laser1

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