APRA Part B

Front

Which is the position fix below is more accuracy than the other? Position fixed by 2 radar bearings. Position fixed by 2 radar ranges.

Back

Position fixed by 2 radar ranges.

Front

State the meaning of the following alarms appeared on the "Sperry Bridge Master E" Radar screen?

SYSTEM FAIL - LOG

Back

Speed log input malfunction. Lost ship speed data

Front

State the meaning of the following alarms appeared on the "Sperry Bridge Master E" Radar screen?

LOST TARGET

Back

Lost target over 5 successive scan

Front

What is the correct sequence of actions the APRA radar will take if the tracking target is lost? Options: Open up the gate if lost target's response / Search for up to five successive scan / The "Target Lost" warning activated, The "Target lost" warning is activated/ Open up the gate if lost target's response/ Search for up to five successive scan, Open up the gate if lost target's response/ The "Target Lost" warning is activated/ Search for up to five successive scan, The "Target Lost" warning is activated/ Search for up to five successive scan/ Open up the gate if lost target's response?

Back

Open up the gate if lost target's response / Search for up to five successive scan / The "Target Lost" warning activated

Front

The following alarm is not an ARPA radar alarms: Guard zone violation, Predicted CPA/ TCPA violation, Track full

Back

SART signal received

Front

Which one is not the information required feed to the ARPA radar when implementing the "Trial Maneuver" function? Options: Time to maneuver (TTM) - delay time, The "Target Lost" warning, Trial course (own ship planned course), Trial speed (own ship planned speed)

Back

The "Target Lost" warning

Front

Which control is used to adjust the length of vector in ARPA?

Back

vector time control

Front

The uncorrected course and speed input to the ARPA will affect the accuracy of:

Back

True vector

Front

Which one is fulfilling the meaning of the "Scanty radar information" stated in the Colreg: X-Band radar information, S-Band radar information, Long Pules radar information, Radar information with target's plotting data?

Back

Radar information with target's plotting data

Front

What is the meaning of the "Long-range scanning" of radar stated in the Colreg?

Back

Radar scanning in which early warning of risk of collision can be obtained