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Safety Protocols & Emergency Procedures Flashcards

7 cards from real DPO practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Safety Protocols & Emergency Procedures flashcards as text

  1. A sudden loss of all DGPS position references occurs while a diver is in the water. What is the correct immediate action?

    Answer: Switch to a secondary reference such as HPR and assess position quality

    Loss of one reference system requires the operator to immediately switch to an available alternative reference and evaluate whether position quality remains adequate.

  2. What action is required when a DP vessel's power management system (PMS) trips a generator during operations?

    Answer: The remaining generators will automatically load-share; monitor and report the fault

    In a properly configured DP system, remaining generators load-share automatically; the operator should monitor the situation and report the generator fault to engineering.

  3. Which of the following describes the 'Blue Zone' concept used in offshore DP operations with divers?

    Answer: The area beyond the red and yellow zones where normal DP operations are permitted

    The blue zone is the outer area beyond restricted dive zones where normal DP operations and movements can take place without immediate diver risk.

  4. What is the correct procedure when a DP vessel loses communication with the subsea control module (SCM) during a well intervention?

    Answer: Suspend intervention activities and restore communication before proceeding

    Loss of SCM communication removes the ability to monitor and control subsea equipment, requiring suspension of intervention activities until communication is restored.

  5. During a DP FMEA proving trial, what is being specifically tested when the operator performs a 'power bus tie test'?

    Answer: That closing or opening the bus tie breaker does not cause unacceptable position excursion

    The bus tie test verifies that switching the bus tie breaker—open or closed—does not cause an excursion that exceeds the acceptable position envelope.

  6. A DP operator observes that the vessel's actual position is oscillating significantly around the setpoint. What is the most likely cause?

    Answer: Poorly tuned DP controller gains creating hunting behavior

    Oscillation around the setpoint is a classic symptom of poorly tuned controller gains causing the DP system to hunt rather than stabilize.

  7. What is the minimum number of independent position reference systems recommended for DP Class 2 operations in a critical phase?

    Answer: Three

    IMCA guidelines recommend a minimum of three independent position reference systems for DP Class 2 vessels during critical operations to allow voting and fault detection.