WorksheetsNAV 1 QUIZ 2 1135
Total questions: 30
Worksheet time: 15mins
How does a GPS receiver support safe navigation on board vessels?
By detecting and tracking nearby targets using radar signals
By measuring wind direction and heading for maneuvering decisions
By providing satellite-based data on position, speed, and course over ground
By recording engine performance metrics such as fuel usage and RPM
How does DGPS improve the accuracy of standard GPS signals during navigation?
By synchronizing AIS data with ECDIS chart overlays
By filtering radar echoes from nearby vessel targets
By adjusting compass deviation using manual input
By applying correction signals from reference stations
Why is AIS required to operate continuously under SOLAS regulations?
To monitor fuel usage and engine temperature readings
To ensure real-time data exchange with other vessels
To record crew schedules and rest hour compliance logs
To track weather changes and tidal condition updates
Why is ECDIS considered a safety-critical system under SOLAS standards?
It reduces human error and warns of navigational hazards
It calculates fuel usage and engine performance metrics
It monitors crew rest hours and duty schedule compliance
It displays weather forecasts and tidal prediction updates
How does a RADAR scanner help prevent collisions during navigation?
By overlaying charts and alarms to highlight route deviations
By transmitting vessel identity and movement data to nearby ships
By detecting objects through reflected radio waves and displaying their positions
By measuring water flow beneath the hull to estimate vessel speed
Why does SOLAS require radar and ARPA systems on certain vessels?
To record crew activities and rest hour compliance logs
To monitor engine temperature and fuel level indicators
To ensure safe navigation in poor visibility conditions
To transmit weather updates to coastal monitoring stations
How does integration of GPS, AIS, and ECDIS support safe bridge operations?
By transmitting entertainment signals to crew quarters onboard
By calculating fuel usage and engine performance metrics
By displaying crew schedules and rest hour compliance records
By providing continuous, accurate, and redundant navigation data
How does Differential GPS improve navigational accuracy compared to standard GPS systems?
By using deviation correction to stabilize magnetic heading
By applying velocity calibration to refine speed measurements
By using reference stations to correct satellite signal errors
By applying time synchronization to record course changes
How does AIS contribute to collision avoidance during navigation?
By displaying radar echoes of nearby vessels
By transmitting vessel data to other ships
By recording voyage data for playback
By measuring water depth under the keel
How does ECDIS contribute to displaying a vessel’s position during navigation?
By calculating CPA and TCPA values for nearby targets
By integrating GPS and sensor data with nautical charts
By measuring seabed distance to determine under-keel clearance
By indicating true heading for directional orientation
How does RADAR assist navigation in poor visibility conditions?
By transmitting AIS signals to shore stations
By displaying electronic charts with overlays
By detecting objects using radio wave reflection
By recording course and speed for playback
How does a course recorder support post-voyage navigational analysis on board vessels?
By measuring vessel velocity through water flow detection
By storing heading and speed data throughout the voyage
By displaying seabed contours for depth interpretation
By transmitting vessel identity and status to nearby ships
Why is the course recorder essential for safe bridge navigation?
It maintains a log of heading and speed changes
It transmits AIS signals to nearby shore stations
It calculates fuel usage and engine performance
It displays radar targets and collision risk data
How does an echo sounder contribute to safe navigation during a voyage?
It displays weather forecasts and tidal predictions onboard
It records crew schedules and rest hour compliance logs
It measures depth below keel using transmitted sound pulses
It calculates compass deviation and gyro error correction values
How does the gyro compass improve heading accuracy on the bridge?
It provides true heading unaffected by magnetic fields
It monitors fuel usage and engine temperature levels
It transmits weather updates to shore-based stations
It displays tidal predictions and wind direction data
Why is the magnetic compass important for emergency navigation?
It records crew activities and rest hour compliance
It calculates fuel usage and engine performance logs
It transmits AIS data to nearby vessels and stations
It provides heading reference without electrical power
How does the echo sounder help prevent grounding during navigation?
It records engine temperature and fuel consumption logs
It continuously displays depth below the vessel’s keel
It transmits AIS signals to nearby coastal stations
It calculates compass deviation and gyro error values
Why is the course recorder important for post-voyage navigational analysis?
It tracks heading and speed to reconstruct vessel movements
It senses water velocity and direction for current monitoring
It reads seabed depth and contour for route verification
It shows deviation and variation for compass calibration checks
How does the Doppler log contribute to safe speed monitoring?
It transmits AIS data to nearby vessels and stations
It displays radar targets and collision risk indicators
It measures vessel speed through water using acoustic signals
It records crew activities and rest hour compliance logs
Why is the magnetic compass essential during electronic failure?
It calculates fuel usage and engine performance metrics
It provides heading reference without electrical power
It transmits weather updates to shore-based stations
It records crew schedules and rest hour compliance logs
Why does SOLAS Regulation 19 require a magnetic compass on all ships?
It provides heading reference independent of power supply
It records fuel usage and engine performance indicators
It transmits AIS signals to nearby coastal stations
It displays radar targets and collision risk information
Why is a pelorus or bearing device essential for full-horizon bearing taking?
It provides heading stabilization for directional accuracy
It enables automatic plotting of radar-detected targets
It allows 360° bearing observations from any direction
It displays seabed contours for depth interpretation
How does ECDIS contribute to safe navigation under SOLAS rules?
It displays electronic charts with real-time positioning
It records engine temperature and fuel consumption logs
It transmits weather updates to shore-based stations
It calculates crew schedules and rest hour compliance
Why must ships ≥500 gross tonnage be fitted with AIS equipment?
It displays tidal predictions and weather forecast data
It monitors fuel usage and engine temperature levels
It records crew activities and rest hour compliance logs
It enables automatic exchange of navigational data
Why is SOLAS Chapter V, Regulation 19 important for navigational system carriage?
It defines equipment standards for safe voyage planning
It sets bridge visibility rules for lookout effectiveness
It outlines steering gear checks for maneuvering safety
It requires voyage data reports for tracking performance
How do MSC resolutions support compliance with Regulation 19?
They transmit weather data to shore-based stations
They monitor fuel usage and engine performance logs
They provide technical guidance and update requirements
They record crew schedules and rest hour compliance
Why must bridge design minimize distractions and fatigue risks?
It calculates fuel usage and engine performance metrics
It ensures vigilance and safe decision-making by the team
It transmits AIS signals to nearby vessels and stations
It records crew schedules and rest hour compliance logs
Which principle ensures bridge teams can access essential data?
Information access for continuous situational awareness
Fuel monitoring for engine performance optimization
Crew scheduling for rest hour compliance tracking
Weather transmission for forecast and tidal updates
How does bridge layout support effective resource management?
It transmits weather updates to shore-based stations
It monitors fuel usage and engine temperature readings
It promotes coordination and safe task execution onboard
It records crew schedules and rest hour compliance logs
Why must a navigator apply the GNSS tri-lateration method during position fixing?
To measure wind speed and current direction onboard
To scan radar echoes from nearby moving vessels
To calculate distances from multiple satellite signals
