JAR - General Navigation Q&As
Be warned, the degrees symbol has come out as the figure '1' in this format.... hope these help
061 - GENERAL NAVIGATION
JAR REVISION QUESTIONS
SECTION 1 - 061 01 - BASICS OF NAVIGATION
1 The angle between the plane of the ecliptic and the plane of the Equator is approximately:
a. 23.51
b. 25.31
c. 66.51
d. 901 1 min (1)
2 At what approximate date is the Earth nearest to the sun (perihelion)?
a. Beginning of July
b. End of December
c. Beginning of January
d. End of March 1 min (1)
3 The Earth is:
a. A sphere which has a larger polar circumference than equatorial circumference
b. A sphere whose centre is equidistant (the same distance) from the Poles and the Equator
c. Considered to be a perfect sphere as far as navigation is concerned
d. None of the above statements is correct 1 min (1)
4 An aircraft starts from (S04110' W178122) and flies north for 2950 nm along the meridian, then west for 382nm along the parallel of latitude. What is the aircraft's final position?
a. N45100' E172138'
b. N53120' W169122'
c. N45100' W169122'
d. N53120' E172138' 2 min (2)
5 The main reason that day and night, throughout the year, have different duration is due to the:
a. Earth's rotation
b. Relative speed of the sun along the ecliptic
c. Inclination of the ecliptic to the Equator
d. Gravitational effect of the sun and moon on the speed of rotation of the Earth 1 min (1)
6 On 27 Feb, at S52100' E040100', the sunrise is at 0230UTC. On the same day, at S52100' W035100', the sunrise is at:
a. 0230UTC
b. 0510UTC
c. 0730UTC
d. 2130UTC 1 min (1)
7 The UTC of the end of Evening Civil Twilight in position N51100' W008100' on 15 August is:
a. 1928UTC
b. 1944UTC
c. 2000UTC
d. 2032UTC 2 min (2)
8 Given: True track 3481; drift 171 left; variation 321W; deviation 41E
What is the compass heading?
a. 3591
b. 0071
c. 3371
d. 0331 1 min (1)
9 A flight is planned from A (N37100' E/W000100') to B (N46100' E/W000100'). The distance in kilometres from A to B is approximately:
a. 540
b. 794
c. 1000
d. 1771 1 min (1)
10 The rhumb line distance between points C (N60100' E002130') and D (N60100' W007130') is:
a. 300nm
b. 520nm
c. 150nm
d. 600nm 1 min (1)
11 An aircraft at latitude S06120' tracks 0001T for 1667km. On completion of the flight the latitude will be:
a. S21120'
b. N21125'
c. N08140'
d. N09140' 2 min (2)
12 An aircraft departs N60100' W030100' and, following rhumb line tracks throughout, flies South for 3600nm, East for 3600nm, North for 3600nm and West for 3600nm. The aircraft's final position was:
a. N60100' E/W000100'
b. N60100' W030100'
c. N60100' W090100'
d. N60100' W060100' 1 min (1)
13 Given: Variation 71W
Deviation 41E
If the aircraft is flying a Compass heading of 270, the True and Magnetic
Headings are:
a. 2741(T) 2671(M)
b. 2671(T) 2741(M)
c. 2771(T) 2811(M)
d. 2631(T) 2591(M) 1 min (1)
14 At what time of the year is the Earth at its furthest point from the sun (aphelion)?
a. Early July
b. Late December
c. Early January
d. Mid-June 1 min (1)
15 What is the circumference of the Earth?
a. 21,600km
b. 40,000nm
c. 10,800nm
d. 21,600nm 1 min (1)
16 Given: True track 1401; drift 81S; variation 91W; deviation 21E
What is the compass heading?
a. 1471(C)
b. 1551(C)
c. 1391(C)
d. 1251(C) 1 min (1)
17 Determine the distance between points A (N45100' E010100') and B (N45100' W005100') is:
a. 300nm
b. 636.4nm
c. 900nm
d. 212.1nm 1 min (1)
18 An aircraft departs from N02120' E04500' on a track of 1801T and flies 685km. On completion of the flight the latitude will be:
a. S11125'
b. S08130'
c. S03150'
d. S09105' 2 min (2)
19 A is at S45100' W010100'; B is at S45100' W030100'. The true course of an aircraft on its arrival at B, to the nearest degree, is:
a. 2631
b. 2701
c. 2771
d. 2841 2 min (2)
20 A Rhumb Line is:
a. The vertex of a conformal polyformic projection
b. A straight line on a Lambert's conformal chart
c. A line on the Earth which cuts all meridians at the same angle
d. The shortest distance between two points on the Earth's surface 1 min (1)
21 An aircraft departs from position 27100'N 170100'W and travels 3000km on a track of 1801(T), then 3000km on a track of 0901(T), then 3000km on a track of 0001(T) and, finally, 3000km on a track of 2701(T). The aircraft's final position is:
a. 27100'N 170100'W
b. 00100'N/S 170100'W
c. 27100'N 173118'W
d. 27100'N 143100'W 3 min (3)
22 If it is 1200 Standard Time on 10th July in Queensland, Australia, the Standard Time in Hawaii, USA is:
a. 1200ST 10 July
b. 1000ST 10 July
c. 1600ST 09 July
d. 0200ST 10 July 2 min (2)
23 Referring to the tables at Appendix 1, the UTC of sunrise in Vancouver, British Columbia, Canada (49100'N 123130'W) on 6 December is:
a. 2324UTC
b. 0724UTC
c. 1552UTC
d. 0738UTC
24 Aphelion occurs in:
a. January
b. March
c. July
d. November 1 min (1)
25 The months in which the difference between apparent noon and mean noon is greatest are:
a. February and November
b. January and July
c. March and September
d. June and December 1 min (1)
26 The change of longitude which is equivalent to a time difference of 5 hours 20 minutes and 20 seconds is:
a. 81130'
b. 78115'
c. 79110'
d. 80105' 2 min (2)
27 An aircraft starts at position 04110'S 178122'W and heads True North for 2950nm, then turns 901 left maintaining a rhumb line track for 314km. The aircraft's final position is:
a. 55100'N 174122'W
b. 45100'N 174122'W
c. 55100'N 177138'E
d. 45100'N 177138'E 2 min (2)
28 An aircraft at position 60100'N 005122'W flies 165km due East. The aircraft's new position is:
a. 60100'N 008120'E
b. 60100'N 002124'W
c. 60100'N 001108'E
d. 60100'N 001108'W 2 min (2)
JAR REVISION QUESTIONS
SECTION 1 - 061 01 - BASICS OF NAVIGATION
Answers:
1 a
2 c
3 c
4 a
5 c
6 c
7 d
8 d
9 c
10 a
11 c
12 c
13 b
14 a
15 d
16 c
17 b
18 c
19 c
20 c
21 c
22 c
23 c
24 c
25 a
26 d
27 d
28 b