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Bridge Navigation & Deck Operations

Celestial Navigation – Deck Officer Assessment

Comprehensive celestial navigation test based on practical officer-level tasks. Includes latitude by meridian altitude, GHA/LHA/SHA calculations, intercept method, azimuth & position lines, equation of time, and sextant errors. Recommended for 2/O, 3/O and exam preparation.

Mga Tanong 18
Time Limit 9 min
Wika Ingles

Mga Sample na Tanong

Narito ang ilang halimbawang tanong mula sa quiz na ito. I-download ang GYRO app upang kunin ang buong pagsusulit.

Tanong 1

Sidereal hour angle is defined as the angular distance of an hour circle:

A Zenith.
B Celestrial meridian.
C Equator.
D Ecliptic plane.

Tanong 2

The magnitude of a star is a measure of its:

A distance from Earth.
B less brightness.
C brightness and luminous stars.
D color.

Tanong 3

Given that the True Zenith Distance is 17° 44.0′ and that the Calculated Zenith Distance is 17° 46.0′, find and name the intercept, with respect to the direction of the observed.

A -2′.
B +2′.
C +1′.
D -1′.

Tanong 4

The moon rotates around its axis with a period of:

A 28,0 days.
B Star month 27,3 days, moon month 29,5 days.
C 30,0 days.
D 26,5 days.

Tanong 5

Given that the true altitude is 61° 47.9′ calculate the True Zenith Distance.

A 30° 15.5′.
B 28° 12.1′.
C 25° 30.0′.
D 32° 45.3′.