CPL Nav Progress Test 01

What is a GREAT CIRCLE?

• a regularly curved line on the surface of the earth which cuts through all meridians at the same angle

• the shortest and most convenient route over distances of less than lOOO nm

• represented as a line concave to the nearest pole on a mercator chart projection

• a circle whose centre and radius are the same as that of the earth

Which of the following is a small circle?

• parallels, other than the Equator

• parallels, including the Equator

• meridians of longitude

Produce a TRUE statement by inserting the correct set of words into this text

“The earth rotates in a/an (i) _______ direction when viewed from above the North Pole and this direction is defined as (ii) _________ “

• (i) anti clockwise (ii) East

• (i) anti clockwise (ii) West

• (i) clockwise (ii) East

• (i) clockwise (ii) West

What is CONVERGENCE?

• the reducing distance between meridians at higher latitudes

• the changing angle between great circle tracks and meridians

• the curve of a rhumb line as it approaches the pole

• The increasing curvature experienced when navigating on a great circle track

What is a NAUTICAL MILE?

• the length of the arc of a great circle which subtends an angle of one degree at the earth's center

• length measure equivalent to 5280 meters

• the length of one sixtieth part of an arc of one degree at the earth's center of a great circle

• length measure exactly equal to 6070 meters

What is the Magnetic Heading of an aircraft in the following circumstance?

VARIATION is 22°E, and

the RELATIVE Bearing of an object from the aircraft is 030°, and

the TRUE Bearing of the same object is 268°T

• 036°M

• 078°M

• 216°M

• 222°M

What is the value of VARIATION in the following circumstance?

the MAGNETIC Bearing of an object from the aircraft is 040°M, and

the RELATIVE Bearing of an object from the aircraft is 350°R, and

the TRUE Heading of the aircraft is 060°T

• 15°W

• 10°E

• 15°E

• 10°W

What is the value of 1° of latitude?

• 1 nm

• 60 nm

• 1 minute of meridianal arc

• 24 nm

Produce a TRUE statement by inserting the correct set of words into this text

“The difference between True North and Magnetic North is called (i) _______ and it (ii) _________ “

• (i) variation (ii) remains the same around the globe

• (i) deviation (ii) varies around the globe

• (i) variation (ii) varies around the globe

• (i) deviation (ii) remains the same around the globe

Determine linear orientation expressed as degrees True, given 270°C, deviation of 4°W’ and variation of 22°E

• 288°T

• 296°T

• 252°T

• 270°T