Avielevate / DGCA CPL papers / Technical General
DGCA CPL Technical General — question bank and syllabus
How the aeroplane works: principles of flight, airframes and systems, powerplants, instruments, and the technical fundamentals every commercial licence assumes you already have.
What is in this paper
Every chapter we cover for Technical General, with how many questions sit behind each one.
These counts come straight out of the question bank and are regenerated whenever it changes —
they are not a claim, they are what is there today.
Sample questions, answered and explained
A few real questions from this paper, with the answer marked and the reasoning
written out — the same explanations you get inside the app. Everything else is behind a free
account.
0410001 · Sample Paper 1
Which statement best describes the operating principle of firewire?
- APositive coefficient of resistance, negative coefficient of capacitance
- BPositive coefficient of inductance, negative coefficient of impedance
- CPositive coefficient of capacitance, negative coefficient of resistance
Why that is the answer
A firewire is a continuous-loop overheat/fire detector routed around an engine, APU or other fire-risk zone, so heating anywhere along the sensing element can be detected.
Its electrical properties change as temperature rises. In the system described by this question, heating causes capacitance to increase while resistance decreases, and the warning unit monitors that change.
Memory point for this item: heat ↑ → capacitance ↑ and resistance ↓, which is the characteristic represented by the selected option.
0410002 · Sample Paper 1
Which type of fire extinguisher would be employed on a propane fire?
- AFoam
- BDry powder
- CSand
Why that is the answer
Fire-extinguishing agents are chosen according to the type of burning material because different agents cool, smother or interrupt the chemical reaction in different ways.
Using an unsuitable agent can be ineffective or can spread the fire, so the approved aircraft/fire-class procedure is what ultimately governs the choice.
The supplied source key marks foam. For a propane/gas fire, standard fire-class guidance normally favours a suitable dry-powder agent; keep this source key for the bank, but verify it against your approved DGCA/aircraft reference.
0410003 · Sample Paper 1
Identify the correct answer: on what principle do smoke detectors work?
- AIonization and impedance
- BOptical and ionization
- CInductance and light diffraction
Why that is the answer
Aircraft smoke detectors commonly sense smoke either optically or by ionization rather than by measuring temperature alone.
An optical detector reacts when smoke scatters or obscures light; an ionization detector reacts when smoke changes the electrical current through an ionized air path.
That operating principle is why the answer refers to optical and ionization.
0410004 · Sample Paper 1
Choose the option that correctly completes this statement about an ion detector detects.
- Asmoke and fire
- Bsmoke
- Clight
Why that is the answer
Aircraft smoke detectors commonly sense smoke either optically or by ionization rather than by measuring temperature alone.
An optical detector reacts when smoke scatters or obscures light; an ionization detector reacts when smoke changes the electrical current through an ionized air path.
That operating principle is why the answer refers to smoke.
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The other DGCA CPL papers
All six papers live in one workspace — one account covers whichever you are sitting.