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GNAV > Fyrsta progress > Flashcards

Fyrsta progress Flashcards

1
Q

An aircraft turns right from 270° to 360° at 48°S using the DRMC. What heading should the aircraft roll out on:

a. 010°
b. 350°
c. 340°
d. 020°

A

d. 020°

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2
Q

When accelerating on a westerly heading in the Northern Hemisphere, the magnet assembly of a direct reading magnetic compass, when viewed from above, will: turn clockwise/anticlockwise indicating an apparent turn towards the ___.

A

anti-clockwise, north

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3
Q

A line connecting points of zero variation is called

___ Line

A

Agonic

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4
Q

What has ICAO adopted as the standard geoid for mapping and position definition?
WGS __

A

84

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5
Q

Hvað eru quadrantal points?

A

NE, SE, SW, NW

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6
Q

Which is the primary direction from which all others follow?

a) north
b) east

A

b) east

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7
Q

At what latitude does the maximum difference between geodetic and geocentric latitude occur?

A

45°

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8
Q

A Graticule is the name given to:

a. A series of Latitude and Longitude lines drawn on a chart or map
b. A series of lines drawn on a chart
c. A selection of small circles approaching either pole
d. Meridians

A

a. A series of Latitude and Longitude lines drawn on a chart or map

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9
Q

hvað er semi great circle?

A

Það er bara great circle sem nær frá suðri til norðurs, þ.e. ekki 360° heldur 180°

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10
Q

A circle on the surface of the earth whose centre and

radius are those of the earth itself is called ____

A

a Great Circle

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11
Q

A circle on the surface of the earth whose centre and

radius are not those of the earth is called a ___.

A

Small Circle

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12
Q

The network formed on a map or the surface of a globe by the Prime Meridian, the meridians, the Equator and the parallels of latitude is called the ___.

A

graticule

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13
Q

The maximum difference between Geocentric and

Geodetic Latitudes occurs at approx __°N/S

A

45

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14
Q

Tropic of cancer er í _°

A

23.5°

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15
Q

Hvað eru mörg feets í 1 NM?

A

6080

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16
Q

Rhumbline/great circle is convex to the equator.

A

rhumbline.

Convex þýðir að beygja eitthvað sveigja eitthvað niðurávið? Rhumbline væri concave to the nearer pole.

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17
Q

One minute of latitude = _ NM

A

1.
One degree of latitude væri 60 minutes/60NM
(at equator)

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18
Q

Distance between equator and poles is __ NM

A

5400 NM

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19
Q

Circumference of earth is __ NM

A

21,600

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20
Q

The sensitivity of a direct reading magnetic compass is: proportional to the ___ component of the Earth’s magnetic field

A

horizontal

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21
Q

Hvernig reiknar þú crosswind factor?

A

sin(angle) * windspeed

T.d. væri runway 26, wind 190/15:
sin(260-190)*15 = 14 kts

22
Q

Ef heading er hærra value en track þá er WCA plús eða mínus?

A

plús held ég

23
Q

Hvort er heading eða track með WCA faktor inniföldum (stokkadæmi)?

A

heading er með WCA inniföldum.
þeas ef WCA er hægra megin í stokkinum (+) þá er þetta track + wca = heading og ef vinstra megin þá track - wca = heading

24
Q

track +/- wca = __.

A

heading

25
Q

Vindastokkur: Ef þú veist ekki vindinn og ætlar að finna hann þá byrjar þú á að setja hvað í gatið?

A

TAS

26
Q

Hvernig er angle of dip at the equator?

A

zero

27
Q

The Earth is:

a. A sphere whose centre is equidistant from the Poles and the equator
d. Considered to be a perfect sphere as far as navigation is concerned

A

d. Considered to be a perfect sphere as far as navigation is concerned

28
Q

Concerning the Earth’s Magnetic Field:

b. It may be temporary, transient or permanent
c. It acts as though there is a large ‘blue’ magnetic pole in Northern Canada

A

c. It acts as though there is a large ‘blue’ magnetic pole in Northern Canada.

29
Q

The value of magnetic variation has a maximum value of __°.

A

180°

30
Q

The lines on a chart joining places of equal magnetic dip are called ____.

A

isoclinals
Iso= sama
clinal=halli

31
Q

Variation is the angle between

A

magnetic north and true north

32
Q

The circumference of earth is ___ NM

A

21,600 NM

33
Q

The agonic line follows two separate paths out of the North Magnetic Pole: one currently running through ___, the other through the USA

A

Western Europe

34
Q

Er “the mean sun” travelling along the ecliptic eða celestial equator, at uniform speed?

A

celestial equator

36
Q

Hvort er það á equinox eða solstice sem “rate of change of the declination of the sun” er að breytast á mestum hraða?

A

equinox, spring og autumn equinox.

37
Q

What is the aproximate compression of the earth?

a) 0.03%
b) 0.3%

A

b) 0.3%

38
Q

The definition of magnetic variation is the angle between..

A

Magnetic north and true north

39
Q

If variation is west then

a) True north is east of magnetic north
b) magnetic north is west of compass north

A

a) True north is east of magnetic north

40
Q

Aircraft magnetism caused by vertical SOFT iron varies/does not vary with latitude and/or heading?

A

Only varies with magnetic latitude, not with heading.

41
Q

Does aircraft magnetism caused by hard iron vary directly with magnetic latitude?

A

yes

42
Q

Varðandi Compass; Deviation due to coefficient A is mainly caused by a misaligned ___ ___.

A

lubber line

43
Q

Hvernig er formúlan fyrir density altitude?

A

Pressure altitude + (ISA dev * 120)

44
Q

Ef þú hefur indicated altitude, hvernig finnur þú true altitude?

A

Indicated altitude + (indicated altitude * 0.004 * ISA dev)

45
Q

Þú hefur static air temperature og indicated altitude. Getur þú notað indicated altitude til að að reikna út ISA eða þarftu pressure altitude?

A

Held að ISA miðist við PA en þú getur notað indicated (allavega í dæmum í bókinni).

46
Q

Hvernig reiknar þú headwind component?

A

cos(wind angle - track angle) * windspeed

47
Q

Hvað/hverjir gefa þér wind í magnetic?

A

ATC og ATIS. Getur munað þetta þannig að ef þú ert í loftinu þá notar þú ATIS og ATC… allt annað er gefið í true.

48
Q

Forecast wind er gefinn í true/magnetic?

A

true. T.d. er TAF og METAR gefinn í true.

49
Q

The symbol for a CTR on an aeronautical chart is:

a. ^^^^^^^^^^^^^^^^^^^^^^^^
b. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
c. _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
d. _______________________________

A

c. _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

50
Q

The chart symbol for the boundary of advisory airspace is:

a. ___ ___ ___ ___ ___ ___
b. ^^^^^^^^^^^^^^^^
c. . . . . . . . . . . . . . . . . . . . . .
d. _____________________

A

a. ___ ___ ___ ___ ___ ___

51
Q

What is the convergence between E175° and W173° on the equator and the north pole?

a. 12° and 12°
b. 0° and 12°
c. 6° on both
d. 12° and 0°

A

b. 0° and 12°

GNAV (7 decks)

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