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gnav 51-100

Total questions: 50

Worksheet time: 25mins

Name
Class
Date
1.

Given: Required course: 045° (T); W/V: 190/30; FL55; ISA; Variation: 15°E; CAS: 120 knots. What is the magnetic heading and GS?

a)

038° (M) 154 kts

b)

038° (M) 113 kts

c)

068° (M) 154 kts

d)

053° (M) 154 kts

2.

Given: True HDG: 035°; TAS: 245 kts; Track: 046° (T); GS: 220 kts. Calculate the W/V.

a)

340/50 kts

b)

340/45 kts

c)

335/45 kts

d)

335/55 kts

3.

The true course in the flight log is 270°, the forecast wind is 045° (T)/15 kts and the TAS is 120 kts. After 15 minutes of flying with the planned TAS and TH the aircraft is 3 NM south of the intended track and 2.5 NM ahead of the dead reckoning position. The track angle error (TKE) is:

a)

5° L

b)

6° R

c)

3° R

d)

2° L

4.

An aircraft is flying from A to B. The true course according to the flight log is 090°, the estimated wind is 225° (T)/15 kts and the TAS is 120 kts. After 15 minutes of flying with the planned TAS and TH the aircraft is 3 NM south of the intended track and 2.5 NM ahead of the dead reckoning position. The track angle error (TKE) is:

a)

5° R

b)

6° L

c)

17° L

d)

12° R

5.

After 15 minutes of flying with the planned TAS and TH the aircraft is 3 NM south of the intended track and 2.5 NM ahead of the dead reckoning position. To reach destination B from this position, the TH should be:

a)

292°

b)

258°

c)

280°

d)

287°

6.

What is the average TAS climbing from 2,000 ft up to FL120 at standard temperatures, given a CAS 185 kts and QNH 1013?

a)

210 kts

b)

221 kts

c)

197 kts

d)

188 kts

7.

What is the average TAS climbing from 1,500 ft up to FL180, given a temperature ISA +15 °C, a CAS 230 kts and QNH 1032?

a)

270 kts

b)

263 kts

c)

309 kts

d)

283 kts

8.

An aircraft is following a true track of 048° at a constant TAS of 210 kt. The wind velocity is 350° / 30 kt. The GS and drift angle are:

a)

192 kt, 7° right

b)

225 kt, 7° left

c)

192 kt, 7° left

d)

200 kt, 3.5° right

9.

Given: An aircraft is on final approach to runway 32R (322°). The wind velocity reported by the tower is 350°/20 kt; TAS on approach is 95 kt. In order to maintain the centre line, the aircraft's heading (°M) should be:

a)

316°

b)

322°

c)

326°

d)

328°

10.

Given: TAS = 197 kt, True course = 240°, W/V = 180/30 kt. Descent is initiated at FL220 and completed at FL40. Distance to be covered during descent is 39 NM. What is the approximate rate of descent?

a)

950 FT/MIN

b)

800 FT/MIN

c)

1500 FT/MIN

d)

1400 FT/MIN

11.

You are departing from an airport which has an elevation of 2000 ft. The QNH is 1013 hPa. 10 NM away there is a waypoint you are required to pass at an altitude of 7500 ft. Given a groundspeed of 100 kt, what is the minimum rate of climb?

a)

590 ft/min

b)

1080 ft/min

c)

750 ft/min

d)

920 ft/min

12.

An aircraft is departing from an airport which has an elevation of 2,000 ft and the QNH is 1003 hPa. The TAS is 100 kts, the head wind component is 20 kts and the rate of climb is 500 ft/min. Top of climb is FL050. At what distance from the airport will this be achieved?

a)

7.2 NM

b)

10.8 NM

c)

8.8 NM

d)

6.6 NM

13.

During approach the following data are obtained: DME: 12.0 NM, altitude 3,000 ft; DME: 9.8 NM, altitude 2,400 ft; TAS: 160 kts; GS: 125 kts. The rate of descent is:

a)

600 ft/min

b)

570 ft/min

c)

730 ft/min

d)

700 ft/min

14.

Given: ILS GP angle: 3.5°; GS: 150 kts. What is the approximate rate of descent?

a)

900 ft/min

b)

800 ft/min

c)

700 ft/min

15.

You are required to descend from FL230 to FL50 over a distance of 32 NM in 7 minutes. What will the glideslope be when you expect a Wind Component (WC) of −25 kts during the descent?

a)

6.25°

b)

4.07°

c)

4.68°

d)

5.29°

16.

A ground feature appears 30° to the left of the centre line of the CRT of an airborne weather radar. If the heading of the aircraft is 355° (M) and the magnetic variation is 15° East, the true bearing of the aircraft from the feature is:

a)

220°

b)

310°

c)

160°

d)

130°

17.

Consider the following statements on sunset:

a)

a)    at sunset the centre of the Sun is at the observers horizon.

b)

for positions at the same longitude, sunset will occur simultaneously at all latitudes.

c)

night-flying regulations start at the time of sunset.

d)

sunset is the time when the observer at sea level sees the last part of the Sun disappear below the horizon.

18.

A map is conformal when:

a)

the meridians are straight lines and the scale is constant.

b)

the variation information is printed on the map as isogonals.

c)

when it conforms to the specifications.

d)

the meridians and the parallels of latitude intersect at right angles and when the scale from any selected point is the same in all directions.

19.

Parallels of latitude, except the equator, are:

a)

rhumb lines.

b)

are neither rhumb lines nor great circles.

c)

great circles.

d)

both rhumb lines and great circles.

20.

Consider the following statements on rhumb lines:

a)

most rhumb lines will run as spirals from the one pole to another.

b)

the true direction of a rhumb line on the northern hemisphere will increase in true direction, while on the southern hemisphere it will decrease.

c)

a rhumb line and a great circle will never have the same true direction for some distance.

d)

a rhumb line will never cross a great circle.

21.

The shortest distance between two points on the surface of the Earth is:

a)

half the rhumb line distance.

b)

the arc of a small circle.

c)

rhumb line.

d)

a great circle.

22.

The convergence of meridians:

a)

is the distance between the meridians in degrees, minutes, and seconds.

b)

is independent of latitude and longitude.

c)

is the angular difference between the meridians.

d)

is greater using rhumb line track than using great circle.

23.

You are flying from A (50°N 10°W) to B (58°N 02°E). What is the convergence between A and B?

a)

9.7°

b)

6.8°

c)

10.2°

d)

6.5°

24.

The convergence factor of a Lambert conformal conic chart is quoted as 0,78535. At what latitude on the chart is Earth convergence correctly represented?

a)

38°15'

b)

51°45'

c)

80°39'

d)

52°05'

25.

What is the value of the convergence factor on a Polar Stereographic chart?

a)

0,866

b)

1

c)

0

d)

0,5

26.

What is the convergence at 50°00'N between the meridians 105°00'W and 145°00'W on the Earth?

a)

32,1°

b)

30,6°

c)

40,0°

d)

50,0°

27.

Radio bearings:

a)

are rhumb lines.

b)

are great circles.

c)

are lines of fixed direction.

d)

cut all meridians at the same angle.

28.

Which one of the following, concerning great circles on a Direct Mercator chart, is correct?

a)

They approximate to straight lines between the standard parallels

b)

They are all curves concave to the equator

c)

They are all curves convex to the equator

d)

With the exception of meridians and the equator, they are curves concave to the equator

29.

Conversions angle is:

a)

convergency.

b)

0,5 convergency.

c)

4 times convergency.

d)

twice convergency.

30.

The great circle bearing of position B from position A in the Northern Hemisphere is 040°. If the conversion angle is 4°, what is the great circle bearing of A from B?

a)

212°

b)

228°

c)

224°

d)

220°

31.

On a Lambert conformal chart the distance between two parallels of latitude (difference of latitude = 2°), is measured to be 112 mm. The distance between two meridians, spaced 2° longitude, according to the chart is 70 NM. The parallel of origin (selected parallel) runs through the middle of the described square. What is the convergence for a d-long of 15° on this map?

a)

14,56°

b)

9,23°

c)

7,50°

d)

12,18°

32.

On a Lambert conformal chart the distance between two parallels of latitude (difference of latitude = 2°), is measured to be 112 mm. The distance between two meridians, spaced 2° longitude, according to the chart is 70 NM. The parallel of origin (selected parallel) runs through the middle of the described square. What is the convergence for a d-long of 15° on this map?

a)

The parallel of origin is the parallel at which the scale reaches its maximum value.

b)

The parallel of origin is the only parallel at which the chart is conformal.

c)

The parallel of origin is the parallel at which the scale reaches its minimum value.

33.

On a Mercator's projection the distance between (17°N, 035°E) and (17°N, 040°E) is 5 cm. The scale at 57°N is approximately:

a)

1 : 10 626 460

b)

1 : 18 658 470

c)

1 : 6 052 030

d)

1 : 5 556 000

34.

On a direct Mercator projection, the distance measured between two meridians spaced 5° apart at latitude 60°N is 8 cm. The scale of this chart at latitude 60°N is approximately:

a)

1 : 3 500 000

b)

1 : 6 000 000

c)

1 : 7 000 000

d)

1 : 4 750 000

35.

The polar Stereographic projection is:

a)

a cylinder projection.

b)

a conical projection.

c)

a plane projection.

d)

a variable cone projection.

36.

Which map projection is described as follows: - Meridians are straight lines. - The scale vary with latitude. - Most rhumb lines are curved lines.

a)

Lambert conformal projection.

b)

Equatorial Mercator projection.

c)

Polar stereographic projection.

d)

Lambert conformal or a polar stereographic projection.

37.

The chart that is generally used for navigation in polar areas is based on a:

a)

direct Mercator projection.

b)

stereographical projection.

c)

Lambert conformal projection.

d)

gnomonic projection.

38.

The Polar Stereographic projection is:

a)

a cylinder projection.

b)

a variable cone projection.

c)

a plane projection.

d)

a conical projection.

39.

On a polar stereographic map, a straight line is drawn from position A (70°N 102°W) to position B (80°N 006°E). The point of highest latitude along this line occurs at longitude 035°W. What is the initial straight-line track angle from A to B, measured at A?

a)

049°

b)

023°

c)

229°

d)

077°

40.

A straight line from A (75°S, 120°E) to B (75°S, 160°E) is drawn on a Polar Stereographic chart. When passing the meridian 155°E, the True Track is:

a)

075°

b)

255°

c)

095°

d)

105°

41.

Given: Direct Mercator chart with a scale of 1: 200 000 at the equator; chart length from A to B, in the vicinity of the equator, 11 cm. What is the approximate distance from A to B?

a)

21 NM

b)

12 NM

c)

14 NM

d)

22 NM

42.

What is the chart distance between longitudes 179°E and 175°W on a direct Mercator chart with a scale of 1: 5 000 000 at the equator?

a)

133 mm

b)

72 mm

c)

167 mm

d)

106 mm

43.

On a Lambert chart (standard parallels 37°N and 65°N), with respect to the straight line drawn on the map between A (49°N 030°W) and B (48°N 040°W), the:

a)

great circle and rhumb line are to the North.

b)

great circle is to the North, the rhumb line is to the South.

c)

rhumb line is to the North, the great circle is to the South.

d)

great circle and rhumb line are to the South.

44.

The standard parallels of a Lambert's conical orthomorphic projection are 07°40'N and 38°20'N. The constant of the cone for this chart is:

a)

0,6

b)

0,92

c)

0,39

d)

0,42

45.

The constant of the cone in a Lambert chart is 0,8666500. The angle between the north directions of the meridian in position A (65°00'N, 018°00'W) and the meridian of position B (75°00'N, 023°00'W) on the chart is:

a)

5,0°

b)

4,3°

c)

5,8°

d)

10,0°

46.

A straight line from A (53°N, 155°W) to B (53°N, 170°E) is drawn on a Lambert Conformal conical chart with standard parallels at 50°N and 56°N. When passing the meridian 175°E, the True Track is:

a)

100,0°

b)

102,5°

c)

257,5°

d)

260,0°

47.

A Lambert's conical conformal chart has standard parallels at 63°N and 41°N. What is the constant of the cone?

a)

0,891

b)

0,788

c)

0,707

d)

0,656

48.

On a Lambert conformal chart, the distance between two parallels of latitude (difference of latitude = 2°) is measured to be 112 mm. The distance between two meridians, spaced 2° longitude, according to the chart is 70 NM. What is the latitude in the centre of the described square?

a)

54°

b)

42°

c)

38°

d)

49°

49.

Which of the following lists all the aeronautical chart symbols shown at position N5150.4 W00829.7?

a)

VOR: DME: NDB: compulsory reporting point

b)

civil airport: VOR: non-compulsory reporting point

c)

VOR: DME: NDB: ILS

d)

civil airport: VOR: DME: compulsory reporting point

50.

Which of the following lists all the aeronautical chart symbols shown at position N5318.1 W00856.5?

a)

civil airport: VOR: DME: non-compulsory reporting point

b)

VOR: DME: NDB: compulsory reporting point

c)

VOR: DME: NDB: compulsory reporting point

d)

civil airport: NDB: DME: non-compulsory reporting point