DPO Quality Control & Inspection 2

Question 1

During a DP Annual Trial, which document must be referenced to confirm all tests are conducted as originally approved?

Accepted Answer

FMEA proving trial procedure approved by the class society

Answer

Annual DP trials must follow the FMEA proving trial procedure approved by the class society to ensure consistency and validity.

Question 2

A reference system is found to have a consistent 2-meter offset during position quality inspection. The FIRST corrective action should be to:

Accepted Answer

Check and update the antenna offset values in the DP system configuration

Answer

A consistent positional offset typically indicates incorrect antenna offset or lever-arm values entered in the DP configuration.

Question 3

When inspecting DP thruster feedback signals, which condition would indicate a quality control failure requiring immediate investigation?

Accepted Answer

Pitch feedback reading opposing the demanded direction

Answer

Pitch feedback reading in the opposite direction to demand indicates a critical signal inversion fault that could cause uncontrolled thrust.

Question 4

Under IMCA M 166 guidelines, how frequently should a full DP capability plot be verified against actual vessel performance?

Accepted Answer

Annually or after significant changes to the vessel's DP equipment or structure

Answer

IMCA M 166 recommends re-verifying DP capability plots annually or whenever major changes affect vessel performance or equipment.

Question 5

During inspection of a DP vessel's UPS (Uninterruptible Power Supply), which test verifies quality of autonomous power bridging for DP continuity?

Accepted Answer

Transfer test timing the switchover from mains to UPS under DP control system load

Answer

The transfer test measures the actual switchover time under DP system load, confirming the UPS provides seamless power bridging without DP controller restart.

(DPO) Dynamic Positioning Operator Exam Practice Test

(DPO) Dynamic Positioning Operator Exam Practice Test

DPO Quality Control & Inspection 2