NAV4 Reviewer w/o solving - Jen | Super Survey Maker

A visually appealing celestial navigation scene depicting a starry sky with celestial bodies, a compass, and an open nautical almanac on a wooden table, evoking a sense of exploration and knowledge.

NAV4 Celestial Navigation Quiz

Test your knowledge of celestial navigation with our challenging NAV4 Reviewer quiz. Designed to enhance your understanding of astronomical concepts and techniques, this quiz covers key terms, calculations, and principles essential for any aspiring navigator.

Multiple choice questions
Explore various celestial concepts
Perfect for learners and professionals alike

31 Questions8 MinutesCreated by NavigatingStar42

Which term refers to the following angular distance of a celestial body North or South of equinoctial?

Zenith distance

Polar distance

Declination

Celestial equator

Time diagram is a diagram on the plane of the ___.

Celestial horizon

Celestial equator

Celestial meridian

Prime meridian

Which of the following LHA rate of change of 1 degree every 4 minutes is mainly caused by____.

The revolution of the earth around the sun

Maximum declination of 23.5 degrees

Change of altitude of the body

The rotate of the earth on its axis

How do you calculate the geographical position of a celestial body if the GMT is known?

By the body’s declination and GHA

By the body’s declination and SHA

By the body’s zenith distance and GHA

By the body’s zenith distance and SHA

Daylight is longer than darkness when ______

Latitude and declination have the same name

Declination is at its maximum

Altitude is equal to zero

The altitude of the observer is zero

Which of the following can be considered as location of the body if LHA is 360*?

Upper transit

Lower transit

Prime vertical circle

PnPs line

The two opposite points of the celestial sphere where it is pierced by the earth’s axis is called ___?

Celestial pole

Right ascension

Celestial equator

Celestial meridian

Which of the following arc of the equinoctial system of coordinates that is contained between the hour circle of Aries measured westward to the hour circle of the body?

Right ascension

Local hour angle

Greenwich hour angle

Sidereal hour angle

Which of the following conventional representation of the sky as a spherical shell on which the celestial bodies appear projected?

Celestial equator

Celestial horizon

Celestial sphere

Celestial meridian

The sun’s true altitude at meridian passage was 61° 25’S, the sun declination is 16° 23’N. What is the latitude of the observer?

44° 58’N

44° 58’S

28° 35’N

28° 35’S

The navigator observed the planet Venus at 90° altitude, declination is 22° 37.6’ N and the GHA is 208° 14.3’. Compute its longitude.

151° 45.7 E

151° 54.7 E

151° 46.0 E

151° 46.0 W

The navigator observed the planet venus at 90° altitude, declination is 22° 37.6’ N and the GHA is 208° 14.3’. Compute the latitude of the observer.

22° 37.8’N

22° 37.6’N

67° 22.4’N

67° 22.8’N

The difference between local apparent time and local mean time is indicated by the _____.

Zone description

Equation of time

Longitude in time

Local apparent noon

Which of the following whole number of hours that must be subtracted or added to zone time to obtain GMT is _____.

Zone time

Zone Description

GMT

LMT

Which of the following time is based on the movement of the visible sun along the ecliptic, the time is known as _____.

Mean time

Visible time

Apparent time

Real time

Which of the following time used by astronomers and is determined by the position of the first point of Aries in the celestial shpere is called _____.

Sidereal time

Greenwich time

Local time

Apparent time

Which of the following angle at the celestial pole contained between the anti meridian of the observer and the meridian of the mean sun, measured westard from anti meridian of the observer and expressed units of time is called _____.

Local Apparent Time

Local Mean Time

Greenwich Apparent Time

Greenwich Mean Time

A local time of an observer on Greenwich meridian is called _____.

Local Time

Greenwich Time

Apparent Time

Universal Time

How are you going to find Local mean time if you are on east longitude ?

By adding LMT to ZD

By subtracting LMT to ZD

By adding GMT to Longitude in time

By subtracting GMT to Logitude in time

Which of the following time do you call the mean solar time on Greenwich meridian?

Local Time

Apparent Time

Universal Time

Greenwich Time

Which of the following procedure can we measure solar time?

By using mean solar time

By using apparent mean sun

By using apparent solar time

By using Astronomical Mean Sun

How many hours is a solar day?

24 hours 00 minutes 00 seconds

23 hours 56 minutes 04 seconds

24 hours 50 minutes 00 seconds

23 hours 00 minutes 00 seconds

Which of the following angular distance between prime vertical and the vertical circle of the body during sunrise and sunset is called _____.

Azimuth angle

Azimuth

Amplitude

Bearing

Which of the following time on the period between sunset and darkness in the evening and darkness and sunrise in the morning is called ___.

Civil twilight

Nautical twilight

Astronomical twilight

Twilight

Which constellation contains the pointer stars to locate the star Polaris?

Cassiopeia

Orion

Ursa minor

Ursa major

The shaded rectangle in the Nautical Almanac means _____.

Constant daylight

Constant night

Twilight all day

Twilight all night

Which of the symbol ’////’ is shown in place of time to indicate _____.

Twilight throughout the night

Twilight all day

Constant daylight

Constant night

NAV4 Reviewer w/o solving - Jen

NAV4 Celestial Navigation Quiz

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