DGCA Performance: Class A Aeroplanes Questions

153 exam-style Class A Aeroplanes questions for the DGCA Performancepaper (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

    For a given take-of mass, the maximum brake energy limit speed (VMBE), as an indicated airspeed, will:

    • ADecrease with increasing altitude, and decrease with increasing temperature.
    • BIncrease with increasing altitude and increase with increasing temperature.
    • CDecrease with increasing altitude, and increase with increasing temperature.
    • DNot change with altitude, but decrease with increasing temperature.
    Show answer

    Correct answer: A. Decrease with increasing altitude, and decrease with increasing temperature.

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  2. Q2

    With regard to a take-off from a wet runway, which of the following statements is correct?

    • AScreen height cannot be reduced.
    • BThe screen height can be lowered to reduce the mass penalties.
    • CWhen the runway is wet, the V1 reduction is sufficient to maintain the same margins on the runway length
    • DIn case of a thrust reverser inoperative, the wet runway performance information can still be used.
    Show answer

    Correct answer: B. The screen height can be lowered to reduce the mass penalties.

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  3. Q3

    The net flight path climb gradient after take-off compared to the gross climb gradient is:

    • Alarger.
    • Bequal.
    • Cdepends on type of aircraft
    • Dsmaller.
    Show answer

    Correct answer: D. smaller.

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  4. Q4

    Which statement with respect to the step climb is correct?

    • AA step climb provides better economy than a cruise climb.
    • BPerforming a step climb based on economy can be limited by the 1.3g altitude.
    • Cn principle a step climb is performed immediately after the aircraft has exceeded the optimum altitude.
    • DA step climb may not be performed unless it is indicated in the filed flight plan.
    Show answer

    Correct answer: B. Performing a step climb based on economy can be limited by the 1.3g altitude.

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  5. Q5

    The approach climb requirement has been established to ensure:

    • Aminimum climb gradient in case of a go-around with one engine inoperative.
    • Bobstacle clearance in the approach area.
    • Cmanoeuvrability in case of landing with one engine inoperative.
    • Dmanoeuvrability during approach with full flaps and gear down, all engines operating.
    Show answer

    Correct answer: A. minimum climb gradient in case of a go-around with one engine inoperative.

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  6. Q6

    Provided all other parameters stay constant, Which of the following statements will decrease the take-off ground run?

    • ADecreased take-off mass, increased pressure altitude, increased temperature.
    • BDecreased take-off mass, increased density, increased flap setting.
    • CIncreased pressure altitude, increased outside air temperature, increased take-off mass.
    • DIncreased outside air temperature, decreased pressure altitude flap setting.8
    Show answer

    Correct answer: B. Decreased take-off mass, increased density, increased flap setting.

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  7. Q7

    For a take-off from a contaminated runway, which of the following statements is correct?

    • ADry snow is not considered to affect the take-off performance.
    • BA slush covered runway must be cleared before take-off, even if the performance data for contaminated runway is available.
    • CThe performance data for take-off is determined in general by means of calculation, only a few values are verified by flight tests.
    • DThe greater the depth of contamination at constant take-off mass, the more V1 has to be decreased to compensate for decreasing friction.
    Show answer

    Correct answer: C. The performance data for take-off is determined in general by means of calculation, only a few values are verified by flight tests.

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  8. Q8

    Given that the characteristics of a three engine turbojet aeroplane are as follows: Thrust = 50,000 N per engine g = 10 m/s² Drag = 72,569 N Minimum gross gradient (2nd segment) = 2.7% The maximum take-off mass under segment two conditions in the net take-off flight path conditions is:

    • A101,596 kg
    • B286,781 kg
    • C74,064 kg
    • D209,064 kg
    Show answer

    Correct answer: A. 101,596 kg

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  9. Q9

    Which statement with respect to the step climb is correct?

    • AA step climb is executed because ATC desires a higher altitude.
    • BA step climb is executed in principle when, just after levelling off, the 1.3g altitude is reached.
    • CExecuting a desired step climb at high altitude can be limited by buffet onset at g-loads larger than 1.
    • DA step climb must be executed immediately after the aeroplane has exceeded the optimum altitude.
    Show answer

    Correct answer: C. Executing a desired step climb at high altitude can be limited by buffet onset at g-loads larger than 1.

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  10. Q10

    The maximum mass for landing could be limited by:

    • Athe climb requirements with all engines in the landing configuration but with gear up.
    • Bthe climb requirements with one engine inoperative in the approach configuration.
    • Cthe climb requirements with one engine inoperative in the landing configuration.
    • Dthe climb requirements with all engines in the approach configuration.
    Show answer

    Correct answer: B. the climb requirements with one engine inoperative in the approach configuration.

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  11. Q11

    A multi engine aeroplane is flying at the minimum control speed (VMCA). Which parameter(s) must be maintainable after engine failure?

    • AHeading, altitude and a positive rate of climb of 100 ft/min.
    • BAltitude.
    • CStraight flight.
    • DStraight flight and altitude.
    Show answer

    Correct answer: C. Straight flight.

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  12. Q12

    Reduced take-off thrust is prohibited when:

    • Ait is dark.
    • Bthe runway is wet
    • Cobstacles are present close to the end of the runway.
    • Dthe runway is contaminated.
    Show answer

    Correct answer: D. the runway is contaminated.

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