Q1. To set up a DP Vessel in the Auto Position Mode.

The minimum sensors

required are:

a. At least two gyros with no errors enabled

b. At least one gyro and one PRS enabled.
c. At least three MRU with Median Test enabled.
d. At least three PRS with Median test enabled.

Q2. When the electrical power demand from the thrusters exceeds a set
percentage of the on line generating capacity what will happen?

a. Electrical power for thrusters will be reduced temporality until additional

generators are brought on line.
b. The vessel will have a blackout of one switchboard.
c. Just close the tie breaker and keep working
d. Thrusters will automatically be shut down to prevent a blackout.

Q3. What is status of DP system after resetting the controllers?

a. The status of DP system after resetting will be decided by the senor

DPO
b. The status of DP system after resetting controllers will be decided by
the chief engineer.
c. The status of DP system after resetting controllers will be decided by
the ETO
d. The DP system reverts back to the standby state with the earlier setting
canceled.

Q4. Can your check the I/O when a vessel is not on DP and the changeover
switch is in manual position.

a. Yes, you can test I/O signals for position reference systems, Gyros,
VRS, wind when the vessel is not on DP
b. No the vessel must be on DP.
c. No, only if vessel is at anchor
d. No, only if thrusters are running.

Q5. Is the capability plot affected by the number of generators that are online?
 a. The power available from the emergency generator.
b. No capability plots are made by ships officer.
c. No capability plot is based on the thruster output and not linked to
generator.
d. there must be power available to run the thrusters at maximum
thrust.

Q6. What needs to be checked if you have no SNR reading on DGNSS until for
the correction satellite clear of any structures?
A history track of the vessels positions showing the vessel’s offset.
a. This would indicate a possible hardware problem or wrong correction
satellite selected.
b. Taut wire
c. The capability of the ship concerning the DP-classes.

Q7. Under what circumstances might it be necessary to de-select a wind

sensor during a DP operation?
a. When the sensor is in a wind shadow
b. When the wind force increases to more than 70 knots
c. When the wind direction is from astern
d. The wind sensor is an importance sensor and can never to de-selected.

Q8. In fog conditions at a range of 100m which position reference system are
you unlikely to be able to use?
a. Laser
b. Taut wire
c. Global navigation satellite system (GNSS)
d. Hydro acoustic

Q9. When working in the vicinity of a large production platform or installation

the Reference system that is likely to be unavailability due to shadowing
would be:
a Cyscan
b Radius
c taut wire
d GNSS

Q10. What hours should be logged in a DP logbook?

a. Only if on bridge talking to DPO
 b. All hours the engineer is on with vessel on DP or not on DP
c. Only hours off watch
d. Only of doing maintenance of DP equipment

Q11. Does the SW & FW cooling pumps need to be supplied power from
different switchboard?
a Yes, cooling pumps for generation main and backup should be
powered from the same redundancy groups as the generators.
b No because cooling pup do not need redundancy
c No it’s only the thrusters that need to be supplied from different
switchboards
d Yes because the fuel cross over valves are shut

Q12. When its ideal to engage in the thruster bias mode?

a To limit thruster azimuthing in light environmental conditions
b When thrusters are continually hunting for direction in strong
currents.
c When a helicopter is about to take off
d To fix thruster feedback alarms.

Q13. Why does a power management have load shedding (preferential

tripping)?
a To supply power to all equipment onboard
b To ensure the thrusters are supplied with the power needed to hold
the vessel in position.
c To supply power to Galley
d Find out how the last crew was operating vessel.

Q14. Is the capability plot affected by the number of generators that are online?
a No – capability plots are made by ships officer.
b No capability plot is based on the thruster output and not linked to
generator
c The power available from the emergency
d Sometimes – There must be power available to run the thrusters at
maximum thrust.

Q15. When the electrical power demand from the thrusters exceeds a set
percentage of the online generating capacity what will happen?
a Electrical power for thrusters will be reduced temporarily until
additional generators are brought online.
 b The vessel will have a blackout of one switchboard.
c Just close the tie breaker and keep working
d Thrusters will automatically be shut down to prevent a blackout.

Q16. What is a load balance study?

a A load balance study should be included in the FMEA. It is an
analysis of the system loads to ensure it is capable of supplying
required thruster power with other equipment running.
b A fault in one system could affect all 24v supplies and thrusters
controls
c Closed – To make it easier to restart thruster after the thruster stops
d It would cause a loss of redundancy.

Q17. Can we correctly measure the NMEA signal by a multimeter / NMEA

measuring device?
a Yes all ETOs must be able to measure this signal
b Yes all engineers must be able to measure this signal
c No the NMEA signal is a sentence / string and this can be only read
and analyzed.
d Yes all engineers and the DP operators must be able to measure
this signal

Q18. What type of sensor is fitted to a pipe layer ?

a current sensor
b Pipe broken alarm sensor
c Pipe touchdown alarm
d Pipe tension sensor

Q19. Every time the vessel goes into DP the engines / generators experience
very high load and then after some time settle down. Is this normal?
a Close switchboard the breakers with watertight subdivision
b Selection of more than three wind sensor
c Used for the purposes of building the model.
d No during setup the vessel must be into the wind and current and
slowed to 0.2 kts or less before going into auto DP

Q20 If a microwave position system stops picking up the transponder. What

could be the problem?
a Batteries in the transponder are flat
b Position reference system are not calibrated
c Microwave is deselected from DP system
d Transponder was set in fixed
Q21. What is the function of the Bypass switch on UPS?
a When the UPS bypass switch is turned on the power will bypass the
batteries and invertor
b The bypass switch must be on to use batteries
c The bypass switch must be on for all DP operations
d The bypass switch must be on to use the inverter.

Q22. What is the first item to check if a vessel which is normally stable but has
very high thruster levels when the DPO enter a position move
a A point mid-way between bow and stern
b Operating in shallow water
c Uninterruptable power supplies
d Check the set point speed

Q23. When using a Taut wire positioning system, which of the following factors
are significant?
a Accuracy improves as deployed wire length increase
b Heavy rain can affect the accuracy of the Taut wire system
c The lump weight position must be accurately determined
d Accuracy deteriorates as water depth and/or angle of wire increase

Q24. What is a capability diagram or plot?

a The time interval for plotting the vessel’s position on the screen
b A tool for estimating the position-keeping capability of the ship
c A history track of the vessels positions showing the vessels offset
d The capability of the ship concerning the DP-classes

Q25 When is it advisable to deselect the wind sensor?

a When a helicopter is about to land on your vessel
b When thunderstorms are in the vicinity
c When relocating are vessel to a new position under DP control
d When temp. below zero degrees Celsius are forecast or expected
Q26 What is a data timeout?
a Data fails to arrive within the expected time frame
b Thruster requested and actual pitch does not match
c Both wind sensors have been deselected from DP
d Data packets collide and have to be retransmitted because of errors.

Q27. As a general rule, control of what axis will receive priority for thrust
allocation when in DP mode?
a Sway
 b Yaw
c Heave
d Surge

Q28. What is target less laser system?

a It does not need a reflector and scans the whole platform
b When the system is not working and cannot pick up target
c Only needs one tube reflectors
d The interrogator cannot be fitted one the same level as radar

Q29. Thruster phase back is defined as

a A method used to temporarily reduce power usage to avoid blackout
b A method used by DPO to help engineroom
c A method of advice by the chief engineer to ER staff
d A method used by duty engineer to reduce fuel consumption

Q30 A Pinger may be described as

a An underwater beacon which transmits automatically al pre-set
intervals
b an underwater beacon which respond when interrogated
c An IALA beacon which transmits free differential signals
d A target used by RadaScan

Q31 which of the following may cause a blackout on a DP vessel?

a Failure of AVR, short circuit and testing of DP system
b Failure of Governor failure of AVR, short circuit and insufficient pland
capacity
c Failure of governor failure of duty engineer very sudden loads and
bad weather
d Failure of governor failure of DPO inefficient watch changeover in
ER
Q32 On the DP system a function that performs calculations to monitor power is
sufficient for thrusters to maintain position and heading in the event of a
single point failure is called
a Power management system it is required on classes 2 and 3
b Thruster Allocation it is required on classes 1, 2 and 3
c Consequence Analysis it is required on classes 2 and 3
d Consequence Analysis it is required on classes 1, 2 and 3