______ is on the panel of DF．

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You have calibrated your RDF．When compiling the calibration table，the correction to be applied to any future RDF bearings is listed against the ______．
- A.true bearing of the transmitter
- B.relative bearing of the transmitter
- C.heading of the vessel
- D.time of reception
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You are about to go to sea and adjust the magnetic compass．To expedite the adjustment at sea，in what order should the following dockside adjustments be made ________．
- A.Flinders bar first，then the heeling magnet and spheres
- B.Heeling magnet first，then the Flinders bar and spheres
- C.Flinders bar first，then the spheres and heeling magnet
- D.Spheres first，then the Flinders bar and heeling magnet
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With respect to automatic identification systems（AIS），which information is expected to be broadcast every 1 to 10 seconds ________．
- A.Rate of turn
- B.Latitude and longitude
- C.Navigational status
- D.All of the above
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With respect to automatic identification systems（AIS），which information is required to be broadcast every 1 to 10 seconds ________．
- A.Call sign and IMO number
- B.Course over ground and MMSI
- C.MMSI number and call sign
- D.Route Plan and navigational status
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While you are at anchor，what will serve as a positive warning that you are drifting towards the wrecks located to the NW and SW of your 2215 position ________．
- A.A decreasing reading on loran pair 9960-X
- B.The bearing of Wolf Trap Light changing to the right
- C.Increasing soundings
- D.The bearing of Wolf Trap Light changing to the left
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Which statement concerning GPS is TRUE ________．
- A.It cannot be used in all parts of the world
- B.There are 12 functioning GPS satellites at present
- C.It may be suspended without warning
- D.Two position lines are used to give a 2D fix
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Which one of the followings does not limit the effective range of radar ________．
- A.Pulse width
- B.Pulse repetition frequency
- C.Peak power
- D.Target brightness
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Which of the following statements is TRUE regarding automatic identification systems（AIS）________．
- A.AIS cannot be used to make passing arrangements because the system is not capable of this type of ship-to-ship communications
- B.AIS cannot be used to make passing arrangements because the ship-to-ship text messaging feature is for emergency use only
- C.AIS can be used to make passing arrangements via ship-to-ship text messaging but a vessel operator is not relieved from the requirement to sound whistle signals or make arrangements via bridge-to-bridge radiotelephone
- D.AIS can be used to make passing arrangements via ship-to-ship text massaging thus relieving a vessel operator from making such arrangements via bridge-to-bridge radiotelephone or signaling intent to pass via whistle signals
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Which of the following statements is TRUE regarding crane operations ________．
- A.Radio communications allow the crane operator to disregard the use of hand signals
- B.The crane operators and signalman must be familiar with the correct hand signals
- C.The forward cranes can be operated from the bridge
- D.The aft cranes can be operated from the aft steering station
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When should the emergency position-indicating radio beacon be activated after abandoning an OSV ________．
- A.Immediately
- B.After one hour
- C.Only when another vessel is in sight
- D.Only after sunset
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