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ATPL General Navigation - Complete Question Bank with Answers

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Comprehensive collection of ATPL General Navigation questions covering all essential topics including The Solar System, Earth's Geometry, Time Conversions, Magnetism and Compasses, Chart Projections, Inertial Navigation Systems (INS/IRS), Flight Management Systems (FMS), and In-Flight Navigation. This document contains over 400 exam-style questions with verified answers, perfect for EASA ATPL, CPL, and Helicopter license preparation. Covers key concepts such as great circle navigation, rhumb lines, magnetic variation, compass errors, chart projections (Mercator, Lambert, Polar Stereographic), INS principles, FMC/CDU operations, and practical navigation calculations.

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ATPL - General Navigation BASICS OF
NAVIGATION The Solar System- INS
operation

The Solar System

1. What is the highest latitude listed below at which the sun will reach an altitude
of 90o above the horizon at some time during the year?

A – 0o
B – 45o
C – 66o
D – 23o

Ref: AIR: atpl, cpl; HELI: atpl, cpl

Ans: D

2. Assuming mid-latitudes (40o to 50o N/S). At which time of year is the
relationship between the length of day and night, as well as the rate of change
of declination of the sun, changing at the greatest rate?

A – Summer solstice and spring equinox
B – Spring equinox and autumn equinox
C – Summer solstice and winter solstice
D – Winter solstice and autumn equinox

Ref: AIR: atpl, cpl; HELI: atpl, cpl

Ans: B

3. What is the approximate date of perihelion, when the Earth is nearest to the
Sun?

A – Beginning of January
B – End of December
C – Beginning of July
D – End of March

Ref: AIR: atpl, cpl; HELI: atpl, cpl

Ans: A

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