| .. | .. |
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| 599 | 599 | |
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| 600 | 600 |  |
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| 601 | 601 | |
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| 602 | | -- **A)** D |
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| 603 | | -- **B)** C |
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| 604 | | -- **C)** B |
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| 605 | | -- **D)** A |
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| 602 | +- **A)** Single lighted obstacle |
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| 603 | +- **B)** Single unlighted obstacle |
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| 604 | +- **C)** Group of lighted obstacles |
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| 605 | +- **D)** Group of unlighted obstacles |
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| 606 | 606 | |
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| 607 | 607 | #### Answer |
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| 608 | 608 | |
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| 609 | | -B) |
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| 609 | +D) |
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| 610 | 610 | |
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| 611 | 611 | #### Explanation |
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| 612 | 612 | |
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| 613 | | -The correct answer is B (symbol C in the figure) because ICAO Annex 4 chart symbology uses distinct symbols to differentiate between single obstacles versus groups, and lighted versus unlighted. The symbol for a group of unlighted obstacles is specifically designated in the reference figure as C. Knowing these symbols is critical for cross-country planning and obstacle avoidance. |
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| 613 | +The correct answer is D because ICAO Annex 4 chart symbology uses distinct symbols to differentiate between single obstacles versus groups, and lighted versus unlighted. The symbol for a group of unlighted obstacles is shown as D in the figure — two filled circles side by side with no light rays. Knowing these symbols is critical for cross-country planning and obstacle avoidance. |
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| 614 | 614 | |
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| 615 | | -- **Option A** — A, C, and D represent other obstacle categories such as single obstacles, lighted groups, or other types. |
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| 615 | +- **Option A** — represents a single lighted obstacle (filled circle with light rays). |
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| 616 | +- **Option B** — represents a single unlighted obstacle (filled circle only). |
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| 617 | +- **Option C** — represents a group of lighted obstacles (two filled circles with light rays). |
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| 616 | 618 | |
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| 617 | 619 | #### Key Terms |
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| 618 | 620 | |
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| .. | .. |
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| 624 | 626 | |
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| 625 | 627 |  |
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| 626 | 628 | |
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| 627 | | -- A) C |
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| 628 | | -- B) A |
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| 629 | | -- C) B |
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| 630 | | -- D) D |
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| 629 | +- **A)** Civil airport, paved runway |
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| 630 | +- **B)** Military airport, paved runway |
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| 631 | +- **C)** Civil airport, unpaved runway |
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| 632 | +- **D)** Heliport |
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| 631 | 633 | |
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| 632 | 634 | #### Answer |
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| 633 | 635 | |
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| 634 | | -B) |
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| 636 | +A) |
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| 635 | 637 | |
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| 636 | 638 | #### Explanation |
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| 637 | 639 | |
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| 638 | | -The correct answer is B (symbol A in the figure) because ICAO aeronautical chart symbology differentiates airports by civil versus military status, international versus domestic, and runway surface type. A civil domestic airport with a paved runway has a specific symbol shown as A in the annex. Glider pilots use these symbols when planning outlanding fields or alternate airports. |
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| 640 | +The correct answer is A because ICAO aeronautical chart symbology differentiates airports by civil versus military status and runway surface type. A civil airport with a paved runway is shown as symbol A in the figure — a circle with a solid filled runway bar through the centre. Glider pilots use these symbols when planning outlanding fields or alternate airports. |
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| 639 | 641 | |
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| 640 | | -- **Option A** — A, C, and D represent other aerodrome categories such as international airports, military airfields, or unpaved-runway airports. |
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| 642 | +- **Option B** — represents a military airport with paved runway (circle with runway bar and crossbar). |
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| 643 | +- **Option C** — represents a civil airport with unpaved runway (circle with open/outlined runway bar). |
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| 644 | +- **Option D** — represents a heliport (square with H). |
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| 641 | 645 | |
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| 642 | 646 | #### Key Terms |
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| 643 | 647 | |
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| .. | .. |
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| 649 | 653 | |
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| 650 | 654 |  |
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| 651 | 655 | |
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| 652 | | -- A) C |
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| 653 | | -- B) B |
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| 654 | | -- C) A |
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| 655 | | -- D) D |
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| 656 | +- **A)** General spot elevation |
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| 657 | +- **B)** Highest spot elevation on chart |
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| 658 | +- **C)** Mountain peak / summit |
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| 659 | +- **D)** Trigonometric point |
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| 656 | 660 | |
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| 657 | 661 | #### Answer |
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| 658 | 662 | |
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| .. | .. |
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| 660 | 664 | |
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| 661 | 665 | #### Explanation |
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| 662 | 666 | |
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| 663 | | -The correct answer is A (symbol C in the figure) because ICAO charts use specific symbols to differentiate between general spot elevations, surveyed elevation points, and obstruction heights. A general spot elevation marks a notable terrain high point for situational awareness and is depicted according to ICAO Annex 4 standards. Familiarity with these symbols is essential for terrain clearance planning. |
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| 667 | +The correct answer is A because ICAO charts use specific symbols to differentiate between general spot elevations, the highest elevation on a chart, mountain peaks, and trigonometric points. A general spot elevation is shown as symbol A — a small dot with a plain elevation number beside it. Familiarity with these symbols is essential for terrain clearance planning. |
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| 664 | 668 | |
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| 665 | | -- **Option B** — B, C, and D represent other elevation-related symbols such as maximum elevation figures or obstruction markers. |
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| 669 | +- **Option B** — represents the highest spot elevation on the chart (larger bold dot with bold underlined number). |
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| 670 | +- **Option C** — represents a mountain peak or summit (filled triangle with elevation number). |
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| 671 | +- **Option D** — represents a trigonometric point (open triangle with centre dot and elevation number). |
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| 666 | 672 | |
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| 667 | 673 | #### Key Terms |
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| 668 | 674 | |
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