DGCA Technical General: Power Available & Required Questions
76 exam-style Power Available & Required questions for the DGCA Technical General 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 TAS is increased from 300 Kts to 400 Kts with no change in altitude, configuration, or weight, by what percentage will power required change?
- A Decrease by 135%.
- B Decrease by 35%.
- C Increase by 135%.
- D Increase by 235%.
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Correct answer: C. Increase by 135%.
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Q2
What is the relationship between power required and TAS, as an aircraft accelerates above VMD?
- A Power required increases in direct proportion to TAS.
- B Power required increases in inverse proportion to TAS.
- C Power required increases in proportion to (TAS)3.
- D Power required increases in proportion to (TAS)2.
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Correct answer: C. Power required increases in proportion to (TAS)3.
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Q3
At what % of its stalling speed must a jet aircraft fly to achieve maximum endurance for a given fuel load?
- A 122%.
- B 132%.
- C 142%.
- D 152%
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Correct answer: B. 132%.
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Q4
For a piston aircraft at constant weight, angle of attack, and configuration, what mill be the effect of Increasing altitude?
- A lncreased power and TAS will be required.
- B Increased power will be required but at the same TAS.
- C Lower power will be required at the same TAS.
- D The same power will be required but at an increased TAS.
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Correct answer: A. lncreased power and TAS will be required.
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Q5
For a piston aircraft at a constant altitude, angle of attack, and configuration, what will be the effect of increasing weight?
- A More power will be required but at the same TAS.
- B More power will be required but at a higher TAS.
- C The same power will be required but at a higher TAS.
- D More power will be required but at a lower TAS.
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Correct answer: B. More power will be required but at a higher TAS.
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Q6
Compared with still air, when flying for maximum range into a headwind, speed should be?
- A Faster.
- B The same,
- C Slower.
- D Depends on weight.
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Correct answer: A. Faster.
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Q7
What flight condition requires least power at a given IAS?
- A Zero flap high altitude.
- B Zero flap low altitude.
- C 30°flap low altitude.
- D 30° flap high altitude.
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Correct answer: B. Zero flap low altitude.
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Q8
Maximum propeller aircraft range occurs at?
- A VMD.
- B VMP.
- C VX.
- D VY.
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Correct answer: A. VMD.
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Q9
Power required for a given IAS at 40000 feet altitude, is .......... times that required at ISA MSL?
- A 2.
- B 4.
- C 8.
- D 16.
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Correct answer: A. 2.
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Q10
Power required is proportional to?
- A TAS.
- B IAS.
- C TAS2.
- D TAS3.
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Correct answer: D. TAS3.
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Q11
Power required equals?
- A Drag x IAS.
- B Drag x CAS.
- C Drag x EAS.
- D Drag x TAS.
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Correct answer: D. Drag x TAS.
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Q12
As altitude increases, power available from a piston or turbo-prop ......... whilst that of a turbo-jet ........... ?
- A Increases, Increases.
- B Increases, Decreases.
- C Decreases, Decreases.
- D Decreases, Increases.
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Correct answer: C. Decreases, Decreases.
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