DGCA Performance: Speeds & Definitions Questions
174 exam-style Speeds & Definitions questions for the DGCA Performance paper (CPL · ATPL · PPL). The first 12 are free below with answers and explanations — sign up free to practise all of them with progress tracking.
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Q1
If VA at 60000 Kg is 250 Kts what will it be at 70000 Kg?
- A 250 Kts.
- B 260 Kts.
- C 270 Kts.
- D 280 Kts.
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Correct answer: C. 270 Kts.
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Q2
If flaps up VA at 60000 Kg is 250 Kts what will it be at 70000 Kg with flaps down if the change in the CL:a curve due to flap deployment is ignored.
- A 230 Kts.
- B 240 Kts
- C 250 Kts
- D 260 Kts
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Correct answer: B. 240 Kts
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Q3
If weight is increased by 25% by what % will VA increase?
- A 11%
- B 12%
- C 13%
- D 14%
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Correct answer: B. 12%
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Q4
Descending at constant mach number might cause?
- A MMO to be exceeded.
- B VMO to be exceeded.
- C Shock stall.
- D Tuck under.
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Correct answer: B. VMO to be exceeded.
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Q5
Climbing at constant IAS might cause?
- A MMO to be exceeded.
- B VMO to be exceeded.
- C Low speed stall.
- D TAS to reduce.
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Correct answer: A. MMO to be exceeded.
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Q6
Given that:VEF= Critical engine failure speed VMCG= Ground minimum control speedVMCA= Air minimum control speed VMU= Minimum unstick speedV1= TakeTakeoff decision speedVR= Rotation speedV2 min.= Minimum take-off safety speedThe correct formula is:
- A VMCG<=VEF < V1
- B 1.05 VMCA<= VEF<= V1
- C V2min<= VEF<= VMU
- D 1.05 VMCG< VEF<= VR
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Correct answer: A. VMCG<=VEF < V1
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Q7
With which conditions would one expect Vmc to be the lowest?
- A Cold temp, low altitude, low humidity
- B Hot temp, low pressure altitude, high humidity.
- C Hot temp, high pressure altitude, high humidity.
- D Cold temp, high altitude, low humidity.
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Correct answer: C. Hot temp, high pressure altitude, high humidity.
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Q8
The margin between VC and VD must be?
- A 1.2 VS.
- B 1.3 VS.
- C Sufficient to avoid unintentional over-speeds.
- D More than 50 Kts.
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Correct answer: C. Sufficient to avoid unintentional over-speeds.
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Q9
Given:VS= Stalling speedVMCA= Air minimum control speed VMU= Minimum unstick speed (disregarding engine failure)V1= take-off decision speedVR= Rotation speedV2 min.= Minimum take-off safety speedVLOF: Lift-off speed The correct formula is:
- A VMU<= VMCA< V1
- B VS< VMCA< V2 min
- C V2min VMU
- D VR< VMCA< VLOF
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Correct answer: B. VS< VMCA< V2 min
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Q10
Give the correct order for the following:
- A Vmcg, VR, V1, V2
- B Vmcg, V1, VR, V2
- C V1, Vmcg, VR, V2
- D Vmcg, V1, Vmca, VR, V2
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Correct answer: B. Vmcg, V1, VR, V2
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Q11
lncreasing flap setting from 10 degrees to 30 degrees will . . . . . . V2?
- A Increase.
- B Decrease unless limited by VMC.
- C Decrease or increase depending on altitude.
- D Decrease or increase depending on C of G position.
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Correct answer: B. Decrease unless limited by VMC.
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Q12
Regarding take-off, the take-off decision speed V1:
- A is an airspeed at which the aeroplane is airborne but below 35 ft and the pilot is assumed to have made a decision to continue or discontinue the take-off .
- B is always equal to VEF (Engine Failure speed).
- C is the airspeed of the aeroplane upon reaching 35 feet above the take-off surface.
- D is the airspeed on the ground at which the pilot is assumed to have made a decision to continue or discontinue the take-off.
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Correct answer: D. is the airspeed on the ground at which the pilot is assumed to have made a decision to continue or discontinue the take-off.
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