OS1 TEST.
Your shortcut to understanding complex topics.
ATON Light Colors (4) - Answer: Red, Green, White and Yellow
Latitudes run which direction? - Answer: Horizontally (East to West)
Latitudes are also called - Answer: Parallels
Longitudes are also called - Answer: Meridians
Longitudes run which direction? - Answer: Vertically (North to South)
What is Nominal Range? - Answer: Maximum distance a light can be seen in clear weather
What is Luminous Range? - Answer: The maximum distance a light may be seen under
existing conditions.
On a compass rose what does the outer circle indicate? - Answer: TRUE north
On a compass rose what does the inner circle indicate? - Answer: MAGNETIC north
How frequent are fixes required when navigating restricted waters? (Designated by
CO/OINC) - Answer: 15 minutes
How frequent are fixes required when navigating with paper charts? - Answer: 30 minutes
What shape represents a Celestial Fix (obtained by sighting two or more stars of known
direction, using a sextant or an astro compass)? - Answer: Circle
APPHIA – Crafted with Care and Precision for Academic Excellence.
1
,What shape represents a Radar Fix? - Answer: Triangle
What shape represents an estimated position? - Answer: Square
The small numbers on a nautical chart are water depths at _____ ______ ______, which is the
average depth at the lower of each day's two low tides. - Answer: Mean Lower Low Water
What kind of charts have a scale of 1:600,000 and smaller? - Answer: Sailing Charts
What are sailing charts used for? - Answer: Determining position along the coast when
approaching from the open ocean, or for sailing between distant coastwise ports (a port in
the U.S., its territories, or possessions embraced within the coastwise laws)
What kind of charts have a scale between 1:150,000 and 1:600,000? - Answer: General
Charts
What is a General Chart used for? - Answer: Coastal navigation outside of near-coastal
reefs and shoals.
What kind of charts have a scale between 1:50,000 and 1:150,000? - Answer: Coastal
Charts
What are Coastal Charts used for? - Answer: Inshore navigation leading to sizeable bays
and harbors, and for navigating large inland waterways.
What kind of charts have a scale larger than 1:50,000? - Answer: Harbor Charts
What are Harbor Charts used for? - Answer: Navigating harbors, anchorage areas and
smaller waterways.
APPHIA – Crafted with Care and Precision for Academic Excellence.
2
, What kind of charts does the Coast Guard mainly use? - Answer: Mercator Projection
Charts
What is the Operations Unit responsible for? - Answer: The planning and execution of
incident response missions conducted within the AOR.
What is the Situation Unit responsible for? - Answer: Monitoring planned and emergent
activities within the unit's AOR; tracking the status of activities and readiness of blue
forces; collecting, fusing, and disseminating important information; and monitoring the
common operational picture (COP).
What is the Communications Unit responsible for? - Answer: Monitoring required voice
frequencies, maintaining communication guard requirements, and, as directed, executing
tactical communication for emergent operations.
What is the Command Duty Officer responsible for? - Answer: Direct representative of the
Operational Commander for current operations. The CDO is a critical component of the CC
watch construct designed to optimize the functionality of the watch in support of the
commands operational objectives, maximize coordination with staff/duty elements and
port partners, and mitigate risks for all mission areas. The CDO is responsible for the
performance of the watch in the execution of its primary functions and ensuring proper
coordination of operational plans for a specific operational period. The CDO position is a
Master-level qualification and might serve as the initial Incident Commander for emergent
events until relieved.
The CCST (Command Center Standardization Team) shall review all required Command
Center training records in AOPS/TMT up to __ days prior to the visit for assessment
purposes. - Answer: 30
APPHIA – Crafted with Care and Precision for Academic Excellence.
3
Your shortcut to understanding complex topics.
ATON Light Colors (4) - Answer: Red, Green, White and Yellow
Latitudes run which direction? - Answer: Horizontally (East to West)
Latitudes are also called - Answer: Parallels
Longitudes are also called - Answer: Meridians
Longitudes run which direction? - Answer: Vertically (North to South)
What is Nominal Range? - Answer: Maximum distance a light can be seen in clear weather
What is Luminous Range? - Answer: The maximum distance a light may be seen under
existing conditions.
On a compass rose what does the outer circle indicate? - Answer: TRUE north
On a compass rose what does the inner circle indicate? - Answer: MAGNETIC north
How frequent are fixes required when navigating restricted waters? (Designated by
CO/OINC) - Answer: 15 minutes
How frequent are fixes required when navigating with paper charts? - Answer: 30 minutes
What shape represents a Celestial Fix (obtained by sighting two or more stars of known
direction, using a sextant or an astro compass)? - Answer: Circle
APPHIA – Crafted with Care and Precision for Academic Excellence.
1
,What shape represents a Radar Fix? - Answer: Triangle
What shape represents an estimated position? - Answer: Square
The small numbers on a nautical chart are water depths at _____ ______ ______, which is the
average depth at the lower of each day's two low tides. - Answer: Mean Lower Low Water
What kind of charts have a scale of 1:600,000 and smaller? - Answer: Sailing Charts
What are sailing charts used for? - Answer: Determining position along the coast when
approaching from the open ocean, or for sailing between distant coastwise ports (a port in
the U.S., its territories, or possessions embraced within the coastwise laws)
What kind of charts have a scale between 1:150,000 and 1:600,000? - Answer: General
Charts
What is a General Chart used for? - Answer: Coastal navigation outside of near-coastal
reefs and shoals.
What kind of charts have a scale between 1:50,000 and 1:150,000? - Answer: Coastal
Charts
What are Coastal Charts used for? - Answer: Inshore navigation leading to sizeable bays
and harbors, and for navigating large inland waterways.
What kind of charts have a scale larger than 1:50,000? - Answer: Harbor Charts
What are Harbor Charts used for? - Answer: Navigating harbors, anchorage areas and
smaller waterways.
APPHIA – Crafted with Care and Precision for Academic Excellence.
2
, What kind of charts does the Coast Guard mainly use? - Answer: Mercator Projection
Charts
What is the Operations Unit responsible for? - Answer: The planning and execution of
incident response missions conducted within the AOR.
What is the Situation Unit responsible for? - Answer: Monitoring planned and emergent
activities within the unit's AOR; tracking the status of activities and readiness of blue
forces; collecting, fusing, and disseminating important information; and monitoring the
common operational picture (COP).
What is the Communications Unit responsible for? - Answer: Monitoring required voice
frequencies, maintaining communication guard requirements, and, as directed, executing
tactical communication for emergent operations.
What is the Command Duty Officer responsible for? - Answer: Direct representative of the
Operational Commander for current operations. The CDO is a critical component of the CC
watch construct designed to optimize the functionality of the watch in support of the
commands operational objectives, maximize coordination with staff/duty elements and
port partners, and mitigate risks for all mission areas. The CDO is responsible for the
performance of the watch in the execution of its primary functions and ensuring proper
coordination of operational plans for a specific operational period. The CDO position is a
Master-level qualification and might serve as the initial Incident Commander for emergent
events until relieved.
The CCST (Command Center Standardization Team) shall review all required Command
Center training records in AOPS/TMT up to __ days prior to the visit for assessment
purposes. - Answer: 30
APPHIA – Crafted with Care and Precision for Academic Excellence.
3
