Lat & Long

Question 1

Shape of the Earth

Answer 1

𝘖𝘣𝘭𝘢𝘵𝘦 𝘚𝘱𝘩𝘦𝘳𝘰𝘪𝘥 ( Oblate - as it is flat at the poles; spheroid- as it is not an exact sphere, bulging at the equator due to compression).

Question 2

Great Circle

Answer 2

Equal halves of the Earth ( same d as the ED and same center).

Question 3

Small Circle

Answer 3

Any circle (arc) on the Earth’s surface.

Question 4

Cause of Compression

Answer 4

Coriolis force ( also causes trade winds.

Question 5

“𝘛𝘩𝘦 𝘳𝘦𝘢𝘴𝘰𝘯 𝘧𝘰𝘳 𝘴𝘦𝘢𝘴𝘰𝘯 𝘪𝘴

Answer 5

𝘪𝘯𝘤𝘭𝘪𝘯𝘢𝘵𝘪𝘰𝘯”.

Question 6

Air movement saying

Answer 6

“𝘏𝘪𝘨𝘩 𝘵𝘰 𝘭𝘰𝘸, 𝘢𝘪𝘳 𝘵𝘰 𝘨𝘰.”

Question 7

Compression figures

Answer 7

a) 27 statute miles
b) 23 nautical miles
c) 43 kilometers
d) ED>PD by 0.3%
e) Ed>PD by 1/300th.

Question 8

Polar Axis

Answer 8

Minor Axis.

Question 9

Equatorial Axis

Answer 9

Major Axis.

Question 10

WGS 84 found in

Answer 10

1984.

Question 11

1 SM =

Answer 11

1.15 NM.

Question 12

1 NM =

Answer 12

1.852 Kms.

Question 13

Earth spins in the

Answer 13

Easterly Dirc.

Question 14

The Lat & Long system was derived from the

Answer 14

Cartesian Co-ordinates.

Question 15

Prime Meridian (location; AKA)

Answer 15

Greenwich in London; Datum Meridian, Greenwich Meridian.

Question 16

Reference Datum

Answer 16

Equator; benchmark to measure something.

Question 17

1°

Answer 17

60” (mins).

Question 18

Latitude

Answer 18

The latitude of any point is the arc (angular distance) measured along the meridian through the point from the Equator to the point.

IMP

Question 19

Longitude

Answer 19

The longitude of any point is the shorter distance in the arc along the equator between the Prime Meridian and the meridian through the point.

Total of 360 meridians.

Question 20

Chlat

Answer 20

Change in Latitude;

Question 21

Chlong

Answer 21

Change in Longitude;

Question 22

Meridian° passing through India’s center

Answer 22

82°30’ E [IST]

Question 23

Aircraft’s are made of

Answer 23

Composite meterial called 𝘋𝘶𝘳𝘢𝘭𝘶𝘮𝘪𝘯.

Question 24

Prime Meridian°

Answer 24

000°

Question 25

Anti-Meridian°

Answer 25

180° E/W

Question 26

Parallels of Lat are called

Answer 26

Small circles.

Question 27

Equator identifies as a

Answer 27

Small Circle & Great circle.

Question 28

To measure Lat & Long we first take

Answer 28

Lat then Long.

Question 29

1 kms = ? ft.

Answer 29

3280.84 ft.

Question 30

To measure shortest dist.

Answer 30

Great Circle Formula = Chlat/Chlong X 60 NM = [　] NM.

Question 31

Antartic

Answer 31

South Pole

Question 32

Arctic

Answer 32

North Pole

Question 33

Equatorial Diameter dist.

Answer 33

6,888 NM.

Question 34

Polar Diameter dist.

Answer 34

6,865 NM.

Question 35

E° towards the Easterly always

Answer 35

Increasing >

Question 36

W° going Easterly always

Answer 36

Decreasing <

Question 37

India’s Dimentions

Answer 37

Lat range = 37°6′N to 8°4′N.
Long range = 68°7′E to 97°25′E.