DGCA Air Navigation: Climb & Descent Questions

163 exam-style Climb & Descent questions for the DGCA Air Navigationpaper (CPL & ATPL). The first 12 are free below with answers and explanations — sign up free to practise all of them with progress tracking.

  1. Q1

    At what approximate distance from the threshold would an aircraft intercept the glide path if the aircraft height is 2500 feet, and the ILS glide path angle is 3°?

    • A7.0 nm.
    • B7.8 nm.
    • C13.0 nm.
    • D14.5 nm.
    Show answer

    Correct answer: B. 7.8 nm.

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  2. Q2

    Convert 70 metres /second into knots?

    • A35 kts
    • B55 kts
    • C136 kts
    • D146 kts
    Show answer

    Correct answer: C. 136 kts

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  3. Q3

    If there is a 10 knot increase in headwind by what amount must the rate of descent be changed in order to maintain a 3° glideslope?

    • AIt must be increased by 30 ft/min.
    • BIt must be decreased by 30 ft/min.
    • CIt must be decreased by 50 ft/min.
    • DIt must be increased by 50 ft/min.
    Show answer

    Correct answer: C. It must be decreased by 50 ft/min.

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  4. Q4

    What will be the rate of descent when flying down a 12% glide slope, at a groundspeed of 540 knots?

    • A3130 ft/min.
    • B4830 ft/min.
    • C6550 ft/min.
    • D8740 ft/min.
    Show answer

    Correct answer: C. 6550 ft/min.

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  5. Q5

    An aircraft flying down a 3° ILS glideslope is at 25 nm DME from the threshold. Using the 1 in 60 rule and approximating 1 nm to 6000 ft, calculate the aircraft height above the runway threshold, assuming that the ILS glidepath crosses the threshold at a height of 50ft ?

    • A6450 ft.
    • B7455 ft.
    • C7650 ft
    • D8015 ft.
    Show answer

    Correct answer: C. 7650 ft

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  6. Q6

    730 FT/MIN equals?

    • A5.2 m/sec.
    • B1.6 m/sec.
    • C2.2 m/sec.
    • D3.7 m/sec.
    Show answer

    Correct answer: D. 3.7 m/sec.

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  7. Q7

    If there is a 15 knot increase in headwind by what amount must the rate of descent be changed in order to maintain a 3° glideslope?

    • AIt must be decreased by 79 ft/min.
    • BIt must be Increased by 79 ft/min.
    • CIt must be increased by 35 ft/min.
    • DIt must be decreased by 35 ft/min.
    Show answer

    Correct answer: A. It must be decreased by 79 ft/min.

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  8. Q8

    What will be the rate of descent when flying down a 10° glide slope, at a groundspeed of 500 knots?

    • A7440 ft/min.
    • B5900 ft/min.
    • C6500 ft/min.
    • D8440 ft/min.
    Show answer

    Correct answer: D. 8440 ft/min.

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  9. Q9

    An aircraft at FL370 is required to commence descent when 100 NM from a DME facility and to cross the station at FL120. If the mean GS during the descent is 396 kt, the minimum rate of descent required is approximately?

    • A1650 ft/min.
    • B2400 ft/min
    • C1000 ft/min.
    • D1550 ft/min.
    Show answer

    Correct answer: A. 1650 ft/min.

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  10. Q10

    An aircraft is travelling at 100 kt forward speed on a 3° glideslope. What is its rate of descent?

    • A500 ft/min
    • B300 ft/min
    • C250 ft/min
    • D500 ft/sec
    Show answer

    Correct answer: A. 500 ft/min

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  11. Q11

    An aircraft is descending down a 12% slope whilst maintaining a GS of 540 kt. The rate of descent of the aircraft is approximately?

    • A4500 ft/min.
    • B3900 ft/min.
    • C6500 ft/min.
    • D650 ft/min.
    Show answer

    Correct answer: C. 6500 ft/min.

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  12. Q12

    If there is a 25 knot increase in headwind by what amount must the rate of descent be changed in order to maintain a 3° glideslope?

    • AIt must be decreased by 125 ft/min.
    • BIt must be increased by 125 ft/min.
    • CIt must be increased by 135 ft/min.
    • DIt must be decreased by 135 ft/min.
    Show answer

    Correct answer: A. It must be decreased by 125 ft/min.

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